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observe be top hold fluctuate be experience average ring warm
express tell be warm unsurprise break ignore say accelerate release
Meteorologists have another indication of global warming in full swing. Temperatures in the Arctic Circle hit an all-time record on Saturday, with the mercury 38º Celsius in the Siberian town of Verkhoyansk. The town currently the Guinness World Record for the greatest temperature range on Earth. It from a low of minus 68ºC to a high of 37.3ºC. The record heat 18 degrees higher than the daily average for June. The Arctic Circle has been a heatwave for much of this year. Temperatures have 10 degrees above normal. This is alarm bells with climatologists, who say the Arctic Circle is at twice the rate of the global average.

Atmosphere scientist Professor Dann Mitchell his concern on rising temperatures. He the BBC: "Year-on-year temperature records are broken around the world, but the Arctic is faster than anywhere else on Earth, so it is to see records being in this region. We will see more of this in the near future." Professor Chris Rapley of University College London said: "This is a warning message from the Earth itself. We it at our peril." Scientists higher temperatures in Siberia could global warming. Melting Siberian permafrost is alarming levels of the greenhouse gasses carbon dioxide and methane into the atmosphere.

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