If growing vegetables in a box with no soil and out of direct sunlight sounds a little fishy,...
One byproduct of fracking is millions of gallons of water that’s much saltier than seawater,...
Improving household electricity access in India over the last 30 years contributed only marginally to the nation's total carbon emissions growth during that time, according to a new study.
Using 3-D printing and novel semiconductors, researchers have created a power inverter that could make electric vehicles lighter, more powerful and more efficient. At the core of this development is wide band gap material made of silicon carbide with qualities superior to standard semiconductor materials.
Electronics based on carbon, especially carbon nanotubes, are emerging as successors to silicon for making semiconductor materials. They may enable a new generation of brighter, low-power, low-cost lighting devices that could challenge the dominance of LEDs in the future and help meet society's ever-escalating demand for greener bulbs.
Scientists have developed a slurry-based process that can revolutionize carbon capture. The slurry, consisting of a porous powder suspended in glycol, offers the efficient large-scale implementation of a liquid while maintaining the lower costs and energy efficiency of solid carbon-capturing materials.
A surprising hot spot of the potent global warming gas methane hovers over part of the southwestern U.S., according to satellite data. That result hints that the EPA and other agencies considerably underestimate leaks of the natural gas.
Engineers have designed a concept for a fusion reactor that, when scaled up to the size of a large electrical power plant, would rival costs for a new coal-fired plant with similar electrical output.
More than 2.8 megaliters of water has been saved in just under a year using groundwater to cool the Pawsey Centre supercomputer. To make that happen, scientists have undertaken stringent tests to ensure that returning heated water to the Mullalloo aquifer has no adverse effects.
A court fight to protect the piping plover is holding up a $207 million plan to replenish sand along a 19-mile stretch of shoreline on New York's Fire Island. The small bird that lives on the island is listed as threatened under the federal Endangered Species Act and, elsewhere in the country, is listed as endangered.
The Chesapeake Bay region would reap an additional $22.5 billion a year from improved hurricane protection, crab and fish production and climate stability if the Obama administration's contested plan to clean up the watershed proceeds, an environmental group says.
New theoretical physics models could help us better grasp the atmospheric chemistry of ozone depletion. Understanding photoabsorption of nitrous oxide matters because a small fraction of N2O reacts with oxygen atoms in the stratosphere to produce nitric oxide, which participates in the catalytic destruction of ozone.
A study shows that air pollution has had a significant impact on the amount of water flowing through many rivers in the northern hemisphere. A paper on the work demonstrates how such pollution, known as aerosols, can have an impact on the natural environment and highlights the importance of considering these factors in assessments of future climate change.
Southern California's air is getting healthier. According to a major air quality study released this week, cancer-causing pollutants have dropped by more than 50 percent on average since 2005.
Diazepam– used to treat anxiety and other similar conditions– has been detected in rivers across the UK and Europe, having been released from waste water treatment plants. The natural photo degradation of diazepam and similar medicines– followed by bacterial breakdown– may reduce their potentially harmful impact on the UK’s freshwater environment, a team of researchers has said.
Mobile lighting systems powered by hydrogen fuel cells are cleaner, quieter and now have a proven track record in applications such as nighttime construction, sports and entertainment events and airport operations, making them ready for commercialization and broader use.
Gov. Jerry Brown has signed legislation imposing the nation's first statewide ban on single-use plastic bags, driven to action by a buildup of litter and damage to aquatic ecosystems. A national coalition of plastic bag manufacturers immediately said it would seek a voter referendum to repeal the law, which is scheduled to take effect in July 2015.
About 3,000 species of wildlife around the world have seen their numbers plummet far worse than previously thought, according to a new study by one of the world's biggest environmental groups. The study largely blamed human threats to nature for a 52 percent decline in wildlife populations between 1970 and 2010.
Scientists looking at 16 cases of wild weather around the world last year see the fingerprints of man-made global warming on more than half of them. Researchers found that climate change increased the odds of nine extremes: heat waves in Australia, Europe, China, Japan and Korea, intense rain in parts of the U.S. and India and severe droughts in California and New Zealand.
A new model has shown that despite its apparent stability, the massive ice sheet covering most of Greenland is more sensitive to climate change than earlier estimates have suggested, which would accelerate the rising sea levels that threaten coastal communities worldwide.
Present-day lithium batteries are efficient but involve a range of resource and environmental problems. Now, using materials from alfalfa and pine resin and a clever recycling strategy, researchers have come up with an interesting alternative.
By combining a pair of solar cells made with a mineral called perovskite and low cost electrodes, scientists have obtained a 12.3 percent conversion efficiency from solar energy to hydrogen, a record using earth-abundant materials as opposed to rare metals.
Concrete is the world’s most used construction material and a leading contributor to global warming, producing as much as one-tenth of industry-generated greenhouse gas emissions. Now, a new study suggests a way in which those emissions could be reduced by more than half— and the result would be a stronger, more durable material.
Researchers have announced a tool for analyzing the economic impacts of building new compressed natural gas fueling stations. Mostly made up of methane, compressed natural gas is an alternative fuel for cars and trucks that can offer greenhouse gas benefits over gasoline.
Abundant supplies of natural gas will do little to reduce harmful U.S. emissions causing climate change, according to researchers. They found that inexpensive gas boosts electricity consumption and hinders expansion of cleaner energy sources, such as wind and solar.
Concerns that fluids from hydraulic fracturing, or “fracking,” are contaminating drinking water abound. A new study has found that discharge of fracking wastewaters to rivers, even after passage through wastewater treatment plants, could be putting the drinking water supplies of downstream cities at risk.
Allowing polluters to buy, sell or trade water quality credits could significantly reduce pollution in river basins and estuaries faster and at lower cost than requiring the facilities to meet compliance costs on their own. The scale and type of the trading programs, though critical, may matter less than just getting them started.
- Page 1