Large-scale wildfires and abnormally high temperatures that continue in the world "Impact of climate change" pointed out

Large-scale wildfires and abnormally high temperatures that continue in the world "Impact of climate change" was pointed out at 4:04 on September 26

Large-scale wildfires and unusually high temperatures occur one after another around the world.

Some of these have been pointed out as having the effects of climate variability, and there are increasing calls for countermeasures.

In the western part of the United States, large-scale wildfires have continued for about two months, and in California, the burned area is more than six times that of Tokyo, which is the worst scale in history, and in neighboring Oregon, it is also about. 400,000 hectares have been burned, killing more than 30 people in total.

For wildfires in the western United States, which continue to suffer severe damage every year, experts point out that climate variability has left these areas hot and dry, which is behind the spread of damage.

Of these, studies by Columbia University and others show that temperatures in the warmer months of California have risen 1.4 degrees in 2018 compared to the early 1970s.

As for this wildfire, the damage was expanding as the record heat continued, such as observing 54.4 degrees in Death Valley, California on the 16th of last month, and Governor Newsum of California said, "Climate change is actually happening. The debate over whether it's happening is over. This is the reality. "

"Abnormally high temperature" in Russia

In Siberia, Russia, the average temperature from January to June was more than 5 degrees higher than the average temperature during the same period from 1981 to 2010, and we observed 38 degrees, which is considered to be the highest ever in the Arctic Circle. did.

Permafrost is melting at high temperatures, causing accidents. In May, a fuel tank collapse accident occurred at a thermal power plant in the suburbs of Norilsk in northern Siberia, which is thought to be caused by the melting of permafrost. Fuel spilled and an emergency declaration was issued.

A team of researchers from the United Kingdom and Russia simulated using observational models to investigate the effects of warming, and found that the unusually high temperatures of the last six months were less than once every 80,000 years without the effects of climate change. It turns out that it was a phenomenon that only happened with probability.

Outbreak of grasshoppers Expert "Is it an unusual wet background?"

In eastern Africa and Pakistan, a large number of pest desert locusts have caused damage to crops and pastures, causing the worst damage in 70 years in Kenya, and according to the Pakistani government, damage to crops. The total amount is estimated to be 550 billion yen.

FAO = Food and Agriculture Organization experts said that the background of the outbreak of grasshoppers was that the climate was unusually moist, with two cyclones coming to the southern part of the Arabian Peninsula, which is originally a dry climate. It points out that it is in.

In addition, although the direct relationship with the cyclone is unknown, local researchers point out that the rise in temperature due to climate change and the increase in rainfall in desert areas have brought about a new environment for the breeding, growth and migration of grasshoppers. doing.