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Danish scientists are developing a grass that will cut down how often cows burp and pass gas — reducing the amount of methane, a potent greenhouse gas, they release into the atmosphere.

One of the biggest untapped clean energy sources on the planet — wave energy — could one day power millions of homes across the U.S. But more than a century after the first tests of the power of ocean waves, it is still one of the hardest energy sources to capture.

A new study chronicles how central Asia dried out over the last 23 million years into one of the most arid regions on the planet. The findings illustrate the dramatic climatic shifts wrought by the ponderous rise of new mountain ranges over geologic time.

Researchers have long cited the uplift of the Tibetan Plateau and the Himalayan Mountains around 50 million years ago for blocking rain clouds’ entry into central Asia from the south, killing off much of the region’s plant life.

A new study from NOAA, the National Oceanic Atmospheric Administration, puts a new twist on a tricky question about the impact of increased oil and gas production on greenhouse gas emissions. Scientists have detected increased rates of methane emissions globally since 2007. That uptick corresponds to the rapid boom in U.S. shale gas and shale oil production, and some hypothesized that the two could be connected. But it turns out that the correlation may not necessarily be a cause.

En un estudio dirigido por el Dr. Jenny Zhang, investigador asociado en St John’s, en Cambridge, los académicos han encontrado una vía inesperada de actuación destructiva dentro del Fotosistema II, una enzima en el corazón de la fotosíntesis generadora de oxígeno que también inspira nuevos enfoques en la producción de combustibles renovables.