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The Colorado River, the life vein of the Southwestern United States, is in trouble. The river's water is hoarded the moment it trickles out of the mountains of Wyoming and Colorado and begins its 1,450-mile journey to Mexico's border. It runs south through seven states and the Grand Canyon, delivering water to Phoenix, Los Angeles and San Diego. Along the way, it powers homes for 3 million people, nourishes 15 percent of the nation's crops and provides drinking water to one in 12 Americans. [More] Cap and Dividend, Not Trade: Making Polluters Pay If you tried to dump harmful waste on the property next door, your neighbor would either stop you or require you to pay a fee. But if you dump carbon dioxide into the air, no one charges you a penny because no one, as yet, owns the air. This free ride results in what economists call a market failure. The actual costs of polluting the atmosphere are enormous, but polluters don’t pay them. Instead future generations are stuck with the tab. A carbon tax, or a carbon cap-and-trade system, can fix this market failure, but because American politicians are loath to impose taxes, a cap is far more likely. Under a cap, government sets a limit on total carbon emissions and issues tradable permits up to the limit. Each year the number of permits declines, reducing emissions over time. Permits can be issued to companies that emit carbon dioxide or to those that supply it for burning--oil, coal and natural gas firms. Issuing permits to suppliers is easier to administer because no smokestacks need to be monitored. [More]

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The U.S. government--and major U.S. banks--seem to have lost their appetite for coal. After spending five years and approximately $50 million on preliminary studies as well as selecting a proposed site in Mattoon, Ill., the U.S. Department of Energy (DOE) has scuttled plans to build the so-called FutureGen power plant. The facility would have captured the greenhouse gas carbon dioxide (CO2) that is emitted when coal is burned for electricity generation. Instead, the DOE hopes to help industry add carbon-capture-and-storage capability to advanced coal plants already in the works. "This restructured FutureGen approach is an all-around better investment for Americans," Energy Secretary Samuel Bodman said in a statement announcing the change. The DOE is asking Congress for $407 million to research how to burn coal most efficiently, along with $241 million to demonstrate such carbon capture and storage (CCS) technologies--at least $900 million less than DOE said it would have cost to complete FutureGen. [More] Smog Can Make People Sick, Even Indoors Smog caused by ground-level ozone isn't just an outdoor air problem. A new study shows that when the irritant's level rises outside, the number of people inside suffering from so-called "sick building syndrome" also increases. (Ozone, an air-polluting oxygen molecule (O3), forms when sunlight strikes motor vehicle tailpipe emissions.) "We found that outdoor air pollution, ozone, is associated with symptoms of lower-respiratory and upper-respiratory stress that occur in buildings to workers," says environmental health scientist Michael Apte of Lawrence Berkeley National Laboratory in California, who analyzed U.S. Environmental Protection Agency (EPA) data gathered on office air quality across the country. "These symptoms are prevalent at fairly high levels throughout the U.S. and are similar in other parts of the world." [More]

Tags: coal, doe, air, million, futuregen

The U.S. government--and major U.S. banks--seem to have lost their appetite for coal. After spending five years and approximately $50 million on preliminary studies as well as selecting a proposed site in Mattoon, Ill., the U.S. Department of Energy (DOE) has scuttled plans to build the so-called FutureGen power plant. The facility would have captured the greenhouse gas carbon dioxide (CO2) that is emitted when coal is burned for electricity generation. Instead, the DOE hopes to help industry add carbon-capture-and-storage capability to advanced coal plants already in the works. "This restructured FutureGen approach is an all-around better investment for Americans," Energy Secretary Samuel Bodman said in a statement announcing the change. The DOE is asking Congress for $407 million to research how to burn coal most efficiently, along with $241 million to demonstrate such carbon capture and storage (CCS) technologies--at least $900 million less than DOE said it would have cost to complete FutureGen. [More] Smog Can Make People Sick, Even Indoors Smog caused by ground-level ozone isn't just an outdoor air problem. A new study shows that when the irritant's level rises outside, the number of people inside suffering from so-called "sick building syndrome" also increases. (Ozone, an air-polluting oxygen molecule (O3), forms when sunlight strikes motor vehicle tailpipe emissions.) "We found that outdoor air pollution, ozone, is associated with symptoms of lower-respiratory and upper-respiratory stress that occur in buildings to workers," says environmental health scientist Michael Apte of Lawrence Berkeley National Laboratory in California, who analyzed U.S. Environmental Protection Agency (EPA) data gathered on office air quality across the country. "These symptoms are prevalent at fairly high levels throughout the U.S. and are similar in other parts of the world." [More]

Tags: coal, doe, air, million, futuregen

So you bought a compact fluorescent lightbulb in a bid to be green. Such bulbs are vastly more energy-efficient than traditional incandescents and screw into standard sockets. Should you treat them like their older cousins? [More] China's Three Gorges Dam: An Environmental Catastrophe? SHANGHAI--For over three decades the Chinese government dismissed warnings from scientists and environmentalists that its Three Gorges Dam--the world's largest--had the potential of becoming one of China's biggest environmental nightmares. But last fall, denial suddenly gave way to reluctant acceptance that the naysayers were right. Chinese officials staged a sudden about-face, acknowledging for the first time that the massive hydroelectric dam, sandwiched between breathtaking cliffs on the Yangtze River in central China, may be triggering landslides, altering entire ecosystems and causing other serious environmental problems--and, by extension, endangering the millions who live in its shadow. Government officials have long defended the $24-billion project as a major source of renewable power for an energy-hungry nation and as a way to prevent floods downstream. When complete, the dam will generate 18,000 megawatts of power--eight times that of the U.S.'s Hoover Dam on the Colorado River. But in September, the government official in charge of the project admitted that Three Gorges held "hidden dangers" that could breed disaster. "We can't lower our guard," Wang Xiaofeng, who oversees the project for China's State Council, said during a meeting of Chinese scientists and government reps in Chongqing, an independent municipality of around 31 million abutting the dam. "We simply cannot sacrifice the environment in exchange for temporary economic gain." [More]

Tags: dam, china, government, project, chinese

So you bought a compact fluorescent lightbulb in a bid to be green. Such bulbs are vastly more energy-efficient than traditional incandescents and screw into standard sockets. Should you treat them like their older cousins? [More] China's Three Gorges Dam: An Environmental Catastrophe? SHANGHAI--For over three decades the Chinese government dismissed warnings from scientists and environmentalists that its Three Gorges Dam--the world's largest--had the potential of becoming one of China's biggest environmental nightmares. But last fall, denial suddenly gave way to reluctant acceptance that the naysayers were right. Chinese officials staged a sudden about-face, acknowledging for the first time that the massive hydroelectric , sandwiched between breathtaking cliffs on the Yangtze River in central China, may be triggering landslides, altering entire ecosystems and causing other serious environmental problems--and, by extension, endangering the millions who live in its shadow. Government officials have long defended the $24-billion project as a major source of renewable power for an energy-hungry nation and as a way to prevent floods downstream. When complete, the dam will generate 18,000 megawatts of power--eight times that of the U.S.'s Hoover Dam on the Colorado River. But in September, the government official in charge of the project admitted that Three Gorges held "hidden dangers" that could breed disaster. "We can't lower our guard," Wang Xiaofeng, who oversees the project for China's State Council, said during a meeting of Chinese scientists and government reps in Chongqing, an independent municipality of around 31 million abutting the dam. "We simply cannot sacrifice the environment in exchange for temporary economic gain." [More]

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For the past three years, botanist Vicki Funk of the Smithsonian Institution has been trying, unsuccessfully, to transfer select leaf specimens from Brazil to the U.S. National Herbarium for identification. Comparing closely related plants “is the bread and butter of systematics,” she explains. “We need stuff from other places.” But as biodiversity becomes a valuable commodity, developing countries have complicated efforts to collect and analyze biological samples, Funk says: “It doesn’t matter if you’re an academic, not a drug company. You’re treated the same.” In 1992 the twin goals of the United Nations Convention on Biological Diversity, signed by more than 150 countries, were to preserve biodiversity and to ensure tropical nations were compensated for any “genetic resources” leading to drug discoveries for developed nations. But even as those goals were reaffirmed at a conference held this past spring in Bonn, Germany, scientists continue to criticize policies stemming from the convention. The claim is that the international agreement, which gave countries ownership of plants and animals inside their borders, is hindering tropical research and conservation, not facilitating them. [More] Genetically Modified Hawaii Just beyond the defunct Koloa Sugar Mill on the Hawaiian island of Kauai's south shore are acres of cornfields that have sprouted over the past decade in a state made famous by its pineapples, bananas and sugarcane crops. Slightly out of place in the Aloha State, they otherwise look quite conventional, although in fact they are not: The crop is among a bounty of others in the state that are grown from seeds that have been genetically engineered or modified (GM) to produce sturdier plants able to withstand weather and disease as well as thrive in the face of insects and chemicals sprayed on them to kill destructive weeds. In front of one plot of corn stalks is a red and white sign warning, "Danger: pesticides. Keep out." Tacked to it is a list containing 15 chemicals that may have been applied to the crop. In this case, the chemicals circled are the herbicides pendimethalin (brand name: Prowl), dicamba (Banvel) and atrazine, the latter of which is banned in the European Union (E.U.) because of its link to birth defects in frogs that live in groundwater contaminated with it. [More]

Tags: crop, countries, chemicals, nations, state

Editor's Note: This story will be published in the December 2008 issue of Scientific American. Survey the sky at twilight on a summer’s eve, and you just might glimpse one of evolution’s most spectacular success stories: bats. With representatives on every continent except Antarctica, they are extraordinarily diverse, accounting for one in every five species of mammal alive today. The key to bats’ rise to prominence is, of course, their ability to fly, which permits them to exploit resources that other mammals cannot reach. But their ascension was hardly a foregone conclusion: no other mammal has conquered the air. Indeed, exactly how these rulers of the night sky arose from terrestrial ancestors is a question that has captivated biologists for decades. [More] Is Focusing on "Hot Spots" the Key to Preserving Biodiversity? In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More]

Tags: species, extinction, bird, conservation, bats

Scientific American magazine editor in chief, John Rennie, talks about the November issue's contents, including computer-brain interfaces, DNA computing, the ongoing attempts to find an HIV vaccine and getting closer to the Star Trek tricorder with portable NMR. Plus, we'll test your knowledge of some recent science in the news. Web sites mentioned on this episode include snipurl.com/4LJ71; SciAm.com/sciammag > Related In-Depth Report: Today's Alternative Energy [More] Geoengineering: How to Cool Earth--At a Price When David W. Keith, a physicist and energy expert at the University of Calgary in Alberta, gives lectures these days on geoengineering, he likes to point out how old the idea is. People have been talking about deliberately altering climate to counter warming, he says, for as long as they have been worrying about global warming itself. As early as 1965, when Al Gore was a freshman in college, a panel of distinguished environmental scientists warned President Lyndon B. Johnson that carbon dioxide (CO2) emissions from fossil fuels might cause “marked changes in climate” that “could be deleterious.” Yet the scientists did not so much as mention the possibility of reducing emissions. Instead they considered one idea: “spreading very small reflective particles” over about five million square miles of ocean, so as to bounce about 1 percent more sunlight back to space--“a wacky geoengineering solution,” Keith says, “that doesn’t even work.” In the decades since, geoengineering ideas never died, but they did get pushed to the fringe--they were widely perceived by scientists and environmentalists alike as silly and even immoral attempts to avoid addressing the root of the problem of global warming. Three recent developments have brought them back into the mainstream. [More]

Tags: geoengineering, global, idea, scientists, warming

In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More] Energy versus Water: Solving Both Crises Together In June the state of Florida made an unusual announcement: it would sue the U.S. Army Corps of Engineers over the corps’s plan to reduce water flow from reservoirs in Georgia into the Apalachicola River, which runs through Florida from the Georgia-Alabama border. Florida was concerned that the restricted flow would threaten certain endangered species. Alabama also objected, worried about another species: nuclear power plants, which use enormous quantities of water, usually drawn from rivers and lakes, to cool their big reactors. The reduced flow raised the specter that the Farley Nuclear Plant near Dothan, Ala., would need to shut down. Georgia wanted to keep its water for good reason: a year earlier various rivers dropped so low that the drought-stricken state was within a few weeks of shutting down its own nuclear plants. Conditions had become so dire that by this past January one of the state’s legislators suggested that Georgia move its upper border a mile farther north to annex freshwater resources in Tennessee, pointing to an allegedly faulty border survey from 1818. Throughout 2008 Georgia, Alabama and Florida have continued to battle; the corps, which is tasked by Congress to manage water resources, has been caught in the middle. Drought is only one cause. A rapidly growing population, especially in Atlanta, as well as overdevelopment and a notorious lack of water planning, is running the region’s rivers dry. [More]

Tags: species, water, georgia, state, river

Humanity's impact on climate has been detected on every continent except Antarctica, or so said the United Nations Intergovernmental Panel on Climate Change (IPCC) in February 2007. No longer: scientists, comparing decades of records from 17 Antarctic weather stations with computer simulations of Earth's climate, found that human-induced global warming has been heating up the continent that is home to the South Pole, as well. [More] Is Focusing on "Hot Spots" the Key to Preserving Biodiversity? In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More]

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Humanity's impact on climate has been detected on every continent except Antarctica, or so said the United Nations Intergovernmental Panel on Climate Change (IPCC) in February 2007. No longer: scientists, comparing decades of records from 17 Antarctic weather stations with computer simulations of Earth's climate, found that human-induced global warming has been heating up the continent that is home to the South Pole, as well. [More] Is Focusing on "Hot Spots" the Key to Preserving Biodiversity? In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More]

Tags: species, climate, extinction, bird, continent

Humanity's impact on climate has been detected on every continent except Antarctica, or so said the United Nations Intergovernmental Panel on Climate Change (IPCC) in February 2007. No longer: scientists, comparing decades of records from 17 Antarctic weather stations with computer simulations of Earth's climate, found that human-induced global warming has been heating up the continent that is home to the South Pole, as well. [More] Is Focusing on "Hot Spots" the Key to Preserving Biodiversity? In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More]

Tags: species, climate, extinction, bird, continent

Humanity's impact on climate has been detected on every continent except Antarctica, or so said the United Nations Intergovernmental Panel on Climate Change (IPCC) in February 2007. No longer: scientists, comparing decades of records from 17 Antarctic weather stations with computer simulations of Earth's climate, found that human-induced global warming has been heating up the continent that is home to the South Pole, as well. [More] Is Focusing on "Hot Spots" the Key to Preserving Biodiversity? In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More]

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Dynegy, a major owner of coal-burning power plants, has agreed to tell investors more about how global warming could affect its business, the New York State attorney general said. Fiddling While the Planet Warms "Heat," airing on Tuesday on PBS, does a thorough job of documenting the obstacles, both technological and human, to reining in global warming.

Tags: global, dynegy, warming, coal, burning

In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More] Biofuels or Food?: Can Crops Feed Our Cars--And the Hungry? Humanity has enjoyed an unusual streak of food surplus since the green revolution began in the mid-1960s. These trends sustained economic development and a significant reduction in global hunger and poverty. A sharp reversal is now possible, however, given strong economic growth in the world’s most populous countries and loss of suitable cropland. People with rising incomes consume more meat and livestock products, which in turn requires more grain per unit of food produced. The rapid expansion of biofuel production only complicates the competition between food and fuel. [More]

Tags: species, extinction, food, conservation, bird

In June the state of Florida made an unusual announcement: it would sue the U.S. Army Corps of Engineers over the corps’s plan to reduce water flow from reservoirs in Georgia into the Apalachicola River, which runs through Florida from the Georgia-Alabama border. Florida was concerned that the restricted flow would threaten certain endangered species. Alabama also objected, worried about another species: nuclear power plants, which use enormous quantities of water, usually drawn from rivers and lakes, to cool their big reactors. The reduced flow raised the specter that the Farley Nuclear Plant near Dothan, Ala., would need to shut down. Georgia wanted to keep its water for good reason: a year earlier various rivers dropped so low that the drought-stricken state was within a few weeks of shutting down its own nuclear plants. Conditions had become so dire that by this past January one of the state’s legislators suggested that Georgia move its upper border a mile farther north to annex freshwater resources in Tennessee, pointing to an allegedly faulty border survey from 1818. Throughout 2008 Georgia, Alabama and Florida have continued to battle; the corps, which is tasked by Congress to manage water resources, has been caught in the middle. Drought is only one cause. A rapidly growing population, especially in Atlanta, as well as overdevelopment and a notorious lack of water planning, is running the region’s rivers dry. [More] The Christian Man's Evolution: How Darwinism and Faith Can Coexist Francisco J. Ayala pulls open the top drawer of a black cabinet and flips through nearly a dozen files, all neatly titled by publication and due date. These are the essays on evolution he has been churning out over the past six to eight weeks for popular books and magazines. “Hack jobs,” he calls them with a smile, bragging that each one takes only a day or two to complete. After some 30 years of proselytizing about evolution to Christian believers, the esteemed evolutionary biologist at the University of California, Irvine, has honed his arguments to a fine point. He has stories and examples at the ready, even a shock tactic or two at his fingertips. One out of five pregnancies ends in spontaneous miscarriage, he often reminds audiences. Next he will pointedly ask, as in an interview with U.S. Catholic magazine last year, “If God explicitly designed the human reproductive system, is God the biggest abortionist of them all?” Through such examples, he explains, “I want to turn around their arguments.” [More]

Tags: water, georgia, river, florida, alabama

In June the state of Florida made an unusual announcement: it would sue the U.S. Army Corps of Engineers over the corps’s plan to reduce water flow from reservoirs in Georgia into the Apalachicola River, which runs through Florida from the Georgia-Alabama border. Florida was concerned that the restricted flow would threaten certain endangered species. Alabama also objected, worried about another species: nuclear power plants, which use enormous quantities of water, usually drawn from rivers and lakes, to cool their big reactors. The reduced flow raised the specter that the Farley Nuclear Plant near Dothan, Ala., would need to shut down. Georgia wanted to keep its water for good reason: a year earlier various rivers dropped so low that the drought-stricken state was within a few weeks of shutting down its own nuclear plants. Conditions had become so dire that by this past January one of the state’s legislators suggested that Georgia move its upper border a mile farther north to annex freshwater resources in Tennessee, pointing to an allegedly faulty border survey from 1818. Throughout 2008 Georgia, Alabama and Florida have continued to battle; the corps, which is tasked by Congress to manage water resources, has been caught in the middle. Drought is only one cause. A rapidly growing population, especially in Atlanta, as well as overdevelopment and a notorious lack of water planning, is running the region’s rivers dry. [More] The Christian Man's Evolution: How Darwinism and Faith Can Coexist Francisco J. Ayala pulls open the top drawer of a black cabinet and flips through nearly a dozen files, all neatly titled by publication and due date. These are the essays on evolution he has been churning out over the past six to eight weeks for popular books and magazines. “Hack jobs,” he calls them with a smile, bragging that each one takes only a day or two to complete. After some 30 years of proselytizing about evolution to Christian believers, the esteemed evolutionary biologist at the University of California, Irvine, has honed his arguments to a fine point. He has stories and examples at the ready, even a shock tactic or two at his fingertips. One out of five pregnancies ends in spontaneous miscarriage, he often reminds audiences. Next he will pointedly ask, as in an interview with U.S. Catholic magazine last year, “If God explicitly designed the human reproductive system, is God the biggest abortionist of them all?” Through such examples, he explains, “I want to turn around their arguments.” [More]

Tags: water, georgia, river, florida, alabama

In the field of conservation, success stories about saving individual species abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More] Biofuels or Food?: Can Crops Feed Our Cars--And the Hungry? Humanity has enjoyed an unusual streak of food surplus since the green revolution began in the mid-1960s. These trends sustained economic development and a significant reduction in global hunger and poverty. A sharp reversal is now possible, however, given strong economic growth in the world’s most populous countries and loss of suitable cropland. People with rising incomes consume more meat and livestock products, which in turn requires more grain per unit of food produced. The rapid expansion of biofuel production only complicates the competition between food and fuel. [More]

Tags: species, extinction, food, conservation, bird

In the field of conservation, success stories about saving individual abound. Bald eagles have recovered from their bout with the pesticide DDT; from fewer than 500 breeding pairs in 1963, the population in the lower 48 states has grown to nearly 10,000 breeding pairs, such that they are no longer listed even as threatened under the Endangered Species Act. Gray wolves have returned to Yellowstone National Park, as well as to the Italian and French Alps. The California condor has been brought back from the absolute brink of extinction, after the last surviving birds were rounded up and bred in the San Diego and Los Angeles zoos. And so on. When human ingenuity and resources are trained on a particular species, usually a charismatic one, it makes a difference--but it does not change the global pattern, which is a steady drumbeat of extinction and of the permanent loss of biodiversity that goes with it. In a recent global assessment, Stuart Butchart and his colleagues at BirdLife International in England concluded that between 1994 and 2004 conservation efforts had saved 16 species of bird from extinction, at least temporarily. During that same decade, however, another 164 bird species listed as threatened by the International Union for Conservation of Nature (IUCN) had slipped a notch closer to extinction. [More] Biofuels or Food?: Can Crops Feed Our Cars--And the Hungry? Humanity has enjoyed an unusual streak of food surplus since the green revolution began in the mid-1960s. These trends sustained economic development and a significant reduction in global hunger and poverty. A sharp reversal is now possible, however, given strong economic growth in the world’s most populous countries and loss of suitable cropland. People with rising incomes consume more meat and livestock products, which in turn requires more grain per unit of food produced. The rapid expansion of biofuel production only complicates the competition between food and fuel. [More]

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In June the state of Florida made an unusual announcement: it would sue the U.S. Army Corps of Engineers over the corps’s plan to reduce flow from reservoirs in Georgia into the Apalachicola River, which runs through Florida from the Georgia-Alabama border. Florida was concerned that the restricted flow would threaten certain endangered species. Alabama also objected, worried about another species: nuclear power plants, which use enormous quantities of water, usually drawn from rivers and lakes, to cool their big reactors. The reduced flow raised the specter that the Farley Nuclear Plant near Dothan, Ala., would need to shut down. Georgia wanted to keep its water for good reason: a year earlier various rivers dropped so low that the drought-stricken state was within a few weeks of shutting down its own nuclear plants. Conditions had become so dire that by this past January one of the state’s legislators suggested that Georgia move its upper border a mile farther north to annex freshwater resources in Tennessee, pointing to an allegedly faulty border survey from 1818. Throughout 2008 Georgia, Alabama and Florida have continued to battle; the corps, which is tasked by Congress to manage water resources, has been caught in the middle. Drought is only one cause. A rapidly growing population, especially in Atlanta, as well as overdevelopment and a notorious lack of water planning, is running the region’s rivers dry. [More] The Christian Man's Evolution: How Darwinism and Faith Can Coexist Francisco J. Ayala pulls open the top drawer of a black cabinet and flips through nearly a dozen files, all neatly titled by publication and due date. These are the essays on evolution he has been churning out over the past six to eight weeks for popular books and magazines. “Hack jobs,” he calls them with a smile, bragging that each one takes only a day or two to complete. After some 30 years of proselytizing about evolution to Christian believers, the esteemed evolutionary biologist at the University of California, Irvine, has honed his arguments to a fine point. He has stories and examples at the ready, even a shock tactic or two at his fingertips. One out of five pregnancies ends in spontaneous miscarriage, he often reminds audiences. Next he will pointedly ask, as in an interview with U.S. Catholic magazine last year, “If God explicitly designed the human reproductive system, is God the biggest abortionist of them all?” Through such examples, he explains, “I want to turn around their arguments.” [More]

Tags: water, georgia, river, florida, alabama