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Photo: Maja Suslin / TT
According to climate expert Martin Hedberg, the ongoing forest fires in Sweden – here in Trängslet in the municipality of Älvdalen – are a consequence of climate change. Image of archives.
Extreme heat and furious forest fires. Climate expert Martin Hedberg is sure: The heat wave is a consequence of climate change
– The likelihood that it is abnormally hot has increased a hundred times to what it was in the 1960s.
Keeping the heat and drought is something According to Martin Hedberg, CFC meteorologist, we must get used, among others, to the armed forces and the SVT
– I think there is has had a regular heat wave over the past five to ten years. It will not be every year, but you can not ignore it. It's the new standard, he says.
Less Jet Wind
Besides the fact that heat waves are more common today than the 1950s, 60s and 70s, they are also warmer, says Martin Hedberg. 19659005] – The curve has changed, so when it's really hot, it's a lot warmer than it was 40 years ago.
He describes it as a humanity boosting the weather with greenhouse gases. The winds of jet streams, which are crucial for the weather, became slower when ice around the Arctic melted. This makes the time easier at the end of a lock. The high pressure stays in the same place for a long time and prevents the low pressure from passing through the fresh air, clouds and rain.
– The temperature contrast between the polar regions and the equator decreased, resulting in a decrease in wind strength. Then we stay in the warm air for several weeks while the low pressures fall in another place
Intensive rain
The blockages simply give lasting heat in one place and heavy rain with floods and other miseries on another. "This is partly due to the fact that the average temperature is rising and partly because of the weather blockage, the precipitation is also becoming more intense as it warms up, because it turns more in the hydrological cycle, the more it Evaporate to dissipate elsewhere Earlier this summer, we saw examples in southern and central Europe
According to Martin Hedberg, the extensive fires of summer in Sweden are a consequence of climate change [19659005] – They started with lightning and are not unique The flash beats thousands of times However, fires spread and are more difficult to limit because of prolonged drought, which is itself due to change
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