Existing power plants around the world will pump out more than 300 billion tons of carbon dioxide over their expected lifetimes, significantly adding to atmospheric levels of the climate-warming gas.
Research by geologists suggests that an intermediate amount of vegetation— not too little and...
Farmers in Thailand are turning to the profitable crisp and crunchy critters in their backyards...
Just how large are the health benefits of cleaner air in comparison to the costs of reducing carbon emissions? Researchers looked at three policies achieving the same reductions in the U.S., and found that the savings on health care spending and other costs related to illness can be big— in some cases, more than 10 times the cost of policy implementation.
China wants to build 60 coal-to-gas plants as part of a controversial energy plan. The country hopes the plants will churn out desperately needed natural gas and electricity while cleaning up the toxic skies above. However, the plants will also release vast amounts of heat-trapping CO2, even as the world struggles to curb greenhouse gas emissions and stave off global warming.
About 63 trillion gallons of water have been lost to drought in the western U.S., enough to blanket the region with four inches of water, according to a study. Researchers arrived at the conclusion by measuring the level of the earth's crust with a network of GPS stations that is normally used to predict earthquakes.
Scientists have developed a low-cost, emissions-free device that uses an ordinary AAA battery to produce hydrogen by water electrolysis. The battery sends an electric current through two electrodes that split liquid water into hydrogen and oxygen gas.
Thanks to new insights into the details of photosynthetic water splitting, the prospects for the development of clean fuels based on water and sunlight are improving.
A new health impact assessment provides short- and long-term recommendations for urban water conservation that save water while also protecting and promoting public health.
Algae might seem easy to ignore, but they are the ultimate source of all organic matter that marine animals depend upon. Algae also suck up CO2 from the atmosphere and sink it to the bottom of the ocean. Now, researchers have evidence showing that viruses infecting those algae are driving the life-and-death dynamics of the algae's blooms, even when all else stays essentially the same.
Your chairs, synthetic rugs and plastic bags could one day be made out of cocoa, rice and vegetable waste rather than petroleum, scientists are now reporting. The novel process they have developed could help the world deal with its agricultural and plastic waste problems.
California has allocated five times more surface water than the state actually has, making it hard for regulators to tell whose supplies should be cut during a drought. Scientists have said California’s water-rights regulator, the State Water Resources Control Board, needs a systematic overhaul of policies and procedures to bridge the gaping disparity, but lacks the legislative authority and funding to do so.
Under the right scenario, exporting U.S. coal to power plants in South Korea could lead to a 21 percent drop in greenhouse gas emissions compared to burning the fossil fuel at plants in the U.S. Despite the large amount of emissions produced by shipping the coal, total emissions would drop because of the superior energy efficiency of South Korea’s newer coal-fired power plants.
While the powerful solvents known as ionic liquids show great promise for liberating fermentable sugars from lignocellulose and improving the economics of advanced biofuels, an even more promising candidate is on the horizon— bionic liquids.
A system proposed by researchers recycles materials from discarded car batteries— a potential source of lead pollution— into new, long-lasting solar panels that provide emissions-free power.
Unanticipated economic benefits from the shale oil and gas boom could help offset the costs of substantially reducing the U.S.'s carbon footprint, agricultural economists say. They estimate that shale technologies annually provide an extra $302 billion to the U.S. economy relative to 2007, a yearly "dividend" that could continue for at least the next two decades.
What will a global water scarcity map look like in 2095? Radically different, according to scientists, depending on the type and stringency of the climate mitigation policies chosen to reduce carbon pollution.
A new field campaign will begin flights over the Arctic this summer to study the effect of sea ice retreat on Arctic climate. The Arctic Radiation IceBridge Sea and Ice Experiment (ARISE) will conduct research flights Aug. 28 through Oct. 1, covering the peak of summer sea ice melt.
Your next commuter car could have two seats, three wheels and get 84 miles to the gallon. Elio Motors wants to revolutionize U.S. roads with its tiny car, which is the same length as a Honda Fit but half the weight. With a starting price of $6,800, it's also less than half the cost.
As the oil and gas drilling technique called hydraulic fracturing proliferates, a new study on the contents of the fluids involved in the process raises concerns about several ingredients. Out of nearly 200 commonly used compounds, there’s very little known about the potential health risks of about one-third, and eight are toxic to mammals.
Scientists looking at glacier melt since 1851 didn't see a human fingerprint until about the middle of the 20th century. Even then only one-quarter of the warming wasn't from natural causes. But since 1991, about 69 percent of the rapidly increasing melt was man-made.
This week, journalist and scientific organizations accused the EPA of attempting to muzzle its independent scientific advisers by directing them to funnel all outside requests for information through agency officials.
Kellogg announced today that it will step up efforts to reduce planet-warming emissions in its supply chain as part of a broader initiative designed to be more environmentally friendly. Under the plan, the company will require key suppliers such as farms and mills to measure and publicly disclose their greenhouse gas outputs and targets for reducing them.
Gulf Coast oyster harvests have declined dramatically in the four years since a BP PLC oil well blew in the U.S.'s worst offshore oil disaster, spilling millions of gallons off Louisiana's coast in 2010. Even after a modest rebound last year, thousands of acres of oyster beds where oil from the well washed ashore are producing less than a third of their pre-spill harvest.
A new technique that transforms stinky, air-polluting landfill gas could produce the sweet smell of success as it leads to development of a fuel cell generating clean electricity for homes, offices and hospitals, researchers say. The advance would convert methane gas into hydrogen.
A sponge-like plastic that sops up CO2 might ease our transition away from polluting fossil fuels and toward new energy sources, such as hydrogen. The material— a relative of the plastics used in food containers— could play a role in President Obama’s plan to cut CO2 emissions 30 percent by 2030, and could also be integrated into power plant smokestacks in the future.
The much-debated Keystone XL pipeline could produce four times more global warming pollution than the State Department calculated earlier this year, a new study concludes.
The fate of oil during the first day after an accidental oil spill is still poorly understood, with researchers often arriving on the scene only after several days. New findings, from a field experiment carried out in the North Sea, provide valuable insight that could help shape the emergency response in the immediate wake of disasters.
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