The report of the International Panel on Climate Change (IPCC) on global warming was published on Monday. Hannele Korhonen, Director of the Finnish Meteorological Institute, spoke about how global warming is affecting Finland.
Climate change as the fastest progresses, the northern regions have warmed.
Finland will continue to be one of the fastest warming regions in the world, said research professor, division director Hannele Korhonen From the Finnish Meteorological Institute on Monday.
According to him, the temperature in Finland has risen 2.3 degrees higher than pre-industrial degrees, while the corresponding figure in the world is one degree.
“That is, the temperature has more than doubled compared to the global average. Winter temperatures have risen even more, by three degrees, ”says Korhonen.
Released on Monday the first part of the sixth report of the International Panel on Climate Change (IPCC). It assesses scientific research data on climate change, its impact and future risks.
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According to the report, the 1.5 degree target requires carbon neutrality to be achieved by 2050 at the latest. This means that CO2 emissions will be produced at most to the extent that they can be sequestered by carbon sinks.
Korhonen says that he knows the climate studies well, but the rate of warming came as a surprise in a recent report.
“In all emission scenarios, the average global temperature is expected to exceed one and a half degrees in the early 2030s, ie ten years earlier than estimated in the previous report,” says Korhonen.
However, he points out that the limit of one and a half degrees is no stranger than a rise of 1.6 degrees.
“It doesn’t go that way if there weren’t any changes in the climate before one and a half degrees, and that then a catastrophe would suddenly start after crossing the border. Instead of hanging out on a chapter, it’s more important to limit warming as low as possible. ”
Heat cycles are becoming more common
Korhosen According to him, global warming will change Finland in many ways.
“We will inevitably have to adapt to change in different areas of society,” Korhonen said at a press conference that reviewed the effects on Finland.
As the average temperature rises, the heat periods also become more common, heat up and lengthen in Finland, Korhonen said.
“The early summer of 2021 was exceptionally hot, but when we go towards the end of the century, that might just be the norm summer. Then the exceptionally hot summers will be several degrees hotter. ”
The risk of forest fires is increasing.
Winters become even wetter and snowier in southern Finland
Precipitation and the number of rainy days is increasing in Finland, especially in winter. Heavy rains are also causing more flooding in the built-up area than before.
The snow season is shortening and the snow cover is thinning, especially in southern Finland, but the shortening of the snow season is seen as the climate warms all over Finland. Since the 1960s, the snow age has already shortened by both the end and the beginning by several days.
“Although we are used to wet and dark winters in the Helsinki metropolitan area, this beauty or misery is even more widely promised in Finland,” Korhonen described.
In Lapland, snowy winters are enough for at least the whole of this century, but also in northern Finland, the snow season is somewhat shortening.
Summers are not getting rainier than before. No changes in the length of the rainy seasons are predicted during this century.
The sea level is rising
In Finland the rise in sea levels caused by global warming is partly protected by the rise of the earth. Still, according to an average estimate, the sea level in the Gulf of Finland will rise by 30 cents during this century.
However, the estimate is quite uncertain, Korhonen reminded. It is possible that during this century, sea levels could rise by as much as 90 cents. It increases the risk of coastal flooding.
So far, the worst flood in Finland’s 100-year measurement history was experienced in Helsinki in 2005, when the water level rose as far as the Market Square. According to Korhonen, it is possible that in the future Helsinki such floods will have to be experienced every other year.
“In any case, the global sea level will continue to rise for centuries, if not millennia,” Korhonen said.
Northern species become cramped
North species are increasingly having to adapt or move further north. The problem for some species may be that they can no longer move further north, as the Arctic Ocean is facing them.
Species that depend on snow and ice in particular are becoming cramped, Korhonen said. These include the wolverine and the Saimaa ringed seal, which make winter nests in the snow.
The growing season is lengthening
In the north in the hemisphere, the growing season continues to lengthen. It is possible that new varieties can be cultivated in Finland.
On the other hand, the prolonging summer and the reduction of freezing frosts also favor pests. Their traces can be seen even more in the summer in fields and forests.
International the climate panel spoke about the report at a news conference on Monday. Korhonen and other Finnish experts evaluated it in a separate press conference. HS followed both events moment by moment.