News tagged with gases

Mountaintop sensor finds high methane over LA

A study using two years of observations from a novel mountaintop instrument finds that Los Angeles' annual emissions of methane, an important greenhouse gas, are 18 to 61 percent higher than widely used estimates.

dateJan 15, 2015 in Earth Sciences
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Reconstructing the African humid period

During the end of the last ice age, there were dramatic changes in rainfall across a vast swath of Africa. As the world's large ice sheets receded in northern and southern latitudes, rainfall in much of Africa ...

dateDec 05, 2014 in Earth Sciences
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Greenhouse gases linked to African rainfall

Scientists may have solved a long-standing enigma known as the African Humid Period - an intense increase in cumulative rainfall in parts of Africa that began after a long dry spell following the end of the ...

dateDec 04, 2014 in Earth Sciences
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Climate change impacts heat up UN talks in Lima

With 2014 on track to become the warmest year on record and time running short, more than 190 nations began talks on a new worldwide deal to limit greenhouse gas emissions and keep global warming from causing ...

dateDec 02, 2014 in Environment
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