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Researchers from the University of Antwerp and KU Leuven have succeeded in developing a process that purifies air and, at the same time, generates power. The device must only be exposed to light in order to function.

A new analysis of 15 years of NASA satellite cloud measurements finds that clouds worldwide show no definitive trend during this period toward decreasing or increasing in height. The new study updates an earlier analysis of the first 10 years of the same data that suggested cloud heights might be getting lower.

Clouds are both Earth's cooling sunshade and its insulating blanket. Currently their cooling effect prevails globally. But as Earth warms, the characteristics of clouds over different global regions -- their thickness, brightness and height -- are expected to change in ways that scientists don't fully understand. These changes could either amplify warming or slow it. Pinning down some of the uncertainties around clouds is one of the biggest challenges in determining the future rate of global climate change.

The time it takes for a leaf to decompose might be the key to understanding how temperature affects ecosystems, according to Kansas State University ecologists. 

Researchers at the Yale School of Public Health and Peking University have found that Chinese families are willing to invest up to 6 percent of their annual income in efforts to improve air quality.

Published in Ecological Economics on March 7, the study aimed to determine the amount people are willing to pay for efforts to reduce air pollution, such as environmental policies to introduce more electric cars and natural gas heating. The researchers found that on average, families with children under the age of 6 are willing to invest 5.9 percent of their annual income, while families without children under 6 years old are willing to pay 3.3 percent.

A new study by scientists at the University of Maryland Center for Environmental Science’s Chesapeake Biological Laboratory, Cornell University and Duke University is the first in a series to understand how marine mammals like porpoises, whales, and dolphins may be affected by the construction of wind farms off the coast of Maryland. The new research offers insight into previously unknown habits of harbor porpoises in the Maryland Wind Energy Area, a 125-square-mile area off the coast of Ocean City that may be the nation’s first commercial-scale offshore wind farm.