Melting permafrost in Canada's Northwest Territories, a sign of accelerating global heating. (Photo: Charles Tarnocai/Agriculture and Agri-Food Canada)

In order to roll back catastrophic carbon emissions, humans must “start developing the technologies for large-scale removal of greenhouse gases from the atmosphere,” … Humanity may have passed the “point of no return” in the climate crisis—even if everyone on the planet stopped emitting all greenhouse gases at this very moment, according to a study published Thursday.

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Antarctic research station

Scientists at an Antarctic research station recently recorded a one-day air temperature of just under 70 degrees, a balmy afternoon in a region of the world unaccustomed to them. In fact, as far as researchers can tell, it has never been that warm in Antarctica before. The record was set against an increasingly scary global backdrop of rising temperatures and seas; more powerful storms, droughts and floods; a reduced Arctic ice cap, and accelerated melting and movement of glaciers around the globe — including Antarctica. The culprit behind this crisis is the nearly 200 years that humans have spent burning fossil fuels […]

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