Deep plumes of oil could cause dead zones in the Gulf

WASHINGTON — A new simulation of oil and methane leaked into the Gulf of Mexico suggests that deep hypoxic zones or “dead zones” could form near the source of the pollution. The research investigates five scenarios of oil and methane plumes at dif…

Clouds mitigate effects of warming on Arctic

Cloudy weather may dampen the human spirit, but it also may dampen the effects of global warming on the Arctic, according to new study published in the March 14 issue of the journal Science. Data from dozens of meteorological stations show that the surface temperature across Arctic land and water keeps getting warmer. However, researchers at the University of Wisconsin-Madison now show that Arctic clouds and the climate conditions with which the clouds interact produce a cooling effect, possibly offsetting to some degree the effects of global warming in this region.

Study finds controlling phosphorus wetlands more important than believed

A new study suggests that the current emphasis on controlling upstream nitrogen pollution fails to adequately address the impacts on water quality of another potential contaminant, phosphorus. Thus, according to the scientists, current strategies used by environmental managers to control excessive nutrients in coastal wetlands may not achieve their intended goals.

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