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A warming atmosphere is creating concern in the Arctic Circle and on the continent of Antarctica. The Arctic Report Card shows high temperatures, shrinking sea ice and extreme melting events are transforming the region. At the opposite pole, in Antarctica, a key ice shelf that sits in front of the Thwaites Glacier could break up much sooner than expected — within 5 years. William Brangham reports.
Average temperatures were up to 10 degrees Celsius more than usual in Arctic Siberia. It played a key role in forest fires, loss of sea ice and global temperature rises that made 2020 one of the three hottest years on record.
Average temperatures were up to 10 degrees Celsius more than usual in Arctic Siberia. It played a key role in forest fires, loss of sea ice and global temperature rises that made 2020 one of the three hottest years on record.
Knew justice was going down. >> reporter: so much made about that nearly all-white jury. in the end, they spent just 11 hours deliberating. their decision reverberating across the country. >> say his name! >> ahmaud arbery! >> say his name! >> ahmaud arbery! >> i hope when society hears the name ahmaud arbery tomorrow, ten years from now, a hundred years from now, they'll know his name from being the man who brought about change. >> reporter: linsey, one of those changes, georgia passed a hate crime law. after the verdict, a defense attorney for gregory mcmichael said she was, quote, floored. ...
Is the canary in the coal mine of climate change. abc's james longman traveled there. >> reporter: greenland. the world's largest island. known for its vast tundra and mammoth glaciers. the ice in the arctic is crucial to regulate the temperatures of the world. richard washington is a professor of climate science at the university of oxford, and he tells us to take note of one small, but very important element of our day. it's raining, when really it should be snowing. what's it like for you being here seeing all this? >> for 20 years, each of 20 years i've been teaching about the greenland ic...