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Clearing grasslands to make way for biofuels may seem counterproductive, but University of Wisconsin-Madison researchers show in a study today (April 2, 2015) that crops, including the corn and soy commonly used for biofuels, expanded onto 7 million acres of new land in the U.S. over a recent four-year period, replacing millions of acres of grasslands.

There are many advantages of getting a good nights sleep.  Turns out, the advantages are less if you are a night owl instead of a morning person.

Night owls are more likely to develop diabetes, metabolic syndrome and sarcopenia than early risers, even when they get the same amount of sleep, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.

The study examined the difference between night and morning chronotypes, or a person's natural sleep-wake cycle. Staying awake later at night is likely to cause sleep loss, poor sleep quality, and eating at inappropriate times, which might eventually lead to metabolic change.

This year California has seen the lowest snowpack ever recorded, which was a disaster for the winter ski tourism industry and poses dangers of wildfires this summer and fall. But the dry winter has also exacerbated the state’s ongoing drought crisis. To that end, Gov. Jerry Brown issued an executive order that he said is necessary in order to make California drought resistant.

The governor made the announcement while visiting a California Department of Water Resources snow survey in the Sierra Nevada Mountains at Phillips Station, located in El Dorado County near the Nevada border. “Today we are standing on dry grass where there should be five feet of snow. This historic drought demands unprecedented action,” Gov. Brown said.

A common growth-promoting hormone used worldwide in the cattle industry has been found to affect the sexual behaviours of fish at a very low concentration in waterways – with potentially serious ecological and evolutionary consequences. Researchers from Monash University, in collaboration with researchers from Åbo Akademi University in Finland,  have found that the steroid 17β-trenbolone – used on livestock to increase muscle growth – alters male reproductive behaviour in guppy fish (Poecilia reticulata).

A team of scientists led by the U.S. Geological Survey found that polar bears, increasingly forced on shore due to sea ice loss, may be eating terrestrial foods including berries, birds and eggs, but any nutritional gains are limited to a few individuals and likely cannot compensate for lost opportunities to consume their traditional, lipid-rich prey—ice seals.