14:00 The existence of a magnetic field beyond 3.5 billion years ago is still up for debate, Earth Sciences

11:00 Don't look to mature forests to soak up carbon dioxide emissions, Earth Sciences

11:00 Climate change could cause sudden biodiversity losses worldwide, Environment

11:00 Amazonian crops domesticated 10,000 years ago, Earth Sciences

10:32 Carbon emission scheme 'succeeding despite low prices', Environment

10:30 Volcanic eruptions during mass extinction produced same amount of CO2 as predicted to be emitted over 21st century, Earth Sciences

10:15 Scientists propose explanation for night sky glow of STEVE, Earth Sciences

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