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Greenland

Why climate engineers are targeting Earth's last pristine spots

19 April 2018

Some of the last great wildernesses are being considered as likely candidates for geoengineering. It's a sad reflection of climate failings, says Olive Heffernan
Adelie penguins

Let's hope chickless penguin colony can come back from the brink

22 November 2017

Last season, a huge colony of Adélie penguins saw just two young survive. As they gather to breed again, a repeat would be alarming, says Olive Heffernan

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