bbc: Arctic Circle sees 'highest-ever' recorded temperatures

Temperatures in the Arctic Circle are likely to have hit an all-time record on Saturday, reaching a scorching 38C (100F) in Verkhoyansk, a Siberian town. more...

nature magazine: Climate tipping points — too risky to bet against

Politicians, economists and even some natural scientists have tended to assume that tipping points1 in the Earth system — such as the loss of the Amazon rainforest or the West Antarctic ice sheet — are of low probability and little understood. Yet evidence is mounting that these events could be more likely than was thought, have high impacts and are interconnected across different biophysical systems, potentially committing the world to long-term irreversible changes. more...

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Erderwärmung immer schlimmer Kipppunkte werden früher erreicht: Forscher warnen vor "planetarem Notfallzustand" mehr...