'Doomsday' climate tipping points have wiggle room: study

Global warming thresholds that could tip massive ice sheets into irreversible melting or see the Amazon rainforest shrivel into savannah have "grace periods", giving humanity more time to draw down planet-warming carbon emissions, ...

Abrupt ice age climate changes behaved like cascading dominoes

Throughout the last ice age, the climate changed repeatedly and rapidly during so-called Dansgaard-Oeschger events, where Greenland temperatures rose between 5 and 16 degrees Celsius in decades. When certain parts of the ...

The climate changed rapidly alongside sea ice decline in the north

Researchers from the Niels Bohr Institute, University of Copenhagen have, in collaboration with Norwegian researchers in the ERC Synergy project, ICE2ICE, have shown that abrupt climate change occurred as a result of widespread ...

Earth's anthropogenic carbon dioxide increase is unprecedented

A new measurement technology developed at the University of Bern provides unique insights into the climate of the past. Previous CO2 concentrations in the atmosphere could be reconstructed more accurately than ever before, ...

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