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Showing posts from June 30, 2020

Climate change: Likelihood of UK temperatures exceeding 40°C increasing

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Nature Communications A public domain photo. Temperatures exceeding 40°C may be reached somewhere in the UK every 3.5 to 15 years by 2100 under continued greenhouse gas emissions, suggests a modelling study in Nature Communications. The paper reports that anthropogenic emissions are increasing the likelihood of extremely warm days in the UK (particularly in the southeast), with temperatures becoming more likely to exceed 30, 35 and 40°C by the end of the century in different parts of the country.

Rapidly warming oceans have left many northern marine mammals swimming in troubled waters. But perhaps none more so than that strange and mysterious "unicorn of the sea," the narwhal.

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by Larry Powell Narwhals are cetaceans, a family of marine mammals which includes whales and dolphins. Most are found in Canada's Baffin Bay and Davis Strait, in the high Arctic and Atlantic Arctic. Others live off Greenland, Norway and Russia. Many spend several months over winter, beneath the ice-pack, feeding on fish, squid and shrimp and their summers in more open water. It's believed they're capable of diving as deep as 15 hundred meters and holding their breath for an astonishing 25 minutes!  A pod "breaches" through an opening in the sea-ice.  A US Fish &  Wildlife Service photo.   They can weigh up to two thousand kilograms and reach a length of about five meters. They're much larger than some dolphin species, but tiny compared to the mighty blue whale. Many migrate along the ice's edge some 17 hundred kilometres from Canada to Russia. The males grow long, spiral tusks - actually overgrown teeth - that can protrude up t