The end-Permian extinction is associated with a mysterious disruption to Earth's carbon cycle. Here we identify causal mechanisms via three observations.
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Extinction events: March 2014
Researchers have pieced together a highly detailed picture of feeding relationships among 700 mammal, bird, reptile, fish, insect, and plant species from a 48 million year old lake and forest ecosystem.
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- 23 Sep: Planetary Science Advisory Committee Meeting
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- 26 Sep: Hearing: Understanding, Forecasting, and Communicating Extreme Weather in a Changing Climate
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