The recent revelation that Greenland's ice sheet melted 17 times faster than average during May's Arctic heatwave is a reminder of the global nature of the climate change crisis. Thousands of miles away in Pakistan, we were also seeing record temperatures, as the mercury crossed 50 degrees Celsius in several cities. In Iceland, which is also in the subarctic region, temperatures hit a record 26 degrees Celsius in mid-May.

While that may not seem like much without........

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