Rowan Romeyn/Alamy Stock Photo
The Arctic is already warming up at twice the rate of the rest of the planet. Now researchers have warned that a little-known natural cycle in the Pacific is entering a phase that could make it heat up even faster.
The rapid warming of the Arctic is already causing havoc, causing seasonal sea-ice cover around the Arctic Circle to retreat by record amounts and making life tough for animals such as polar bears. The warming is also disrupting weather patterns, …