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Volcanic activity and changes in Earth's mantle were key to rise of atmospheric oxygen（图）
Volcanic activity changes Earth mantle were key rise atmospheric oxygen
2020/6/19
Oxygen first accumulated in the Earth's atmosphere about 2.4 billion years ago, during the Great Oxidation Event. A long-standing puzzle has been that geologic clues suggest early bacteria were photos...
Geologists are letting the air out of a nagging mystery about the development of animal life on Earth.
Scientists have long speculated as to why animal species didn’t flourish sooner, once sufficient...
Study Predicts Maximum Sea Level Rise Close to One Meter by 2100（图）
Maximum Sea Level One Meter 2100
2009/12/10
A new study of sea level fluctuations over the last 22,000 years is the latest to predict that rising seas could reach close to one meter by the end of this century, consistent with the most recent se...
Nearly All of Antarctica Is Warming--New Study Shows Steady 50-Year Rise（图）
Antarctica Is Warming Steady 50-Year Rise
2009/12/10
Antarctica is getting warmer, a new study shows. Though scientists already knew fast-collapsing ice shelves on the continent’s northerly peninsula were the result of rapid warming, evidence on the far...