Summer in the Northern Hemisphere could last about six months in the year 2100, if global warming is not controlled.
The study, published last month in the journal Geophysical Research Letters, found that climate change makes summer hotter and longer, while the other three asons are shrinking. Scientists say that irregularities can have serious effects, affecting human health and agriculture and the environment.
“This is a biological clock for every living thing,” said Yuping Guan, lead author of the study at the Chinese Academy of Sciences’ State Key Laboratory of Tropical Oceanography. “People argue about a 2 degree or 3 degree increase in temperature, but the global warming that is changing the world can understand everything.”
Guan and his colleagues traced the beginning and end of each season in the Northern Hemisphere by obtaining daily climate information from 1952 to 2011. They found that summer averaged 78 to 95 days longer over a period of about 60 years – a difference of about three months.
Winter, on average, shortens from 76 to 73 days, and spring and tu and autumn similar tuo are equally compressed. On average, spring se tuo shrinks from 124 days to 115 days, and 87 tomals shorten from 87 days to 82 days.
Scientists used the findings to create a model for projecting how change could change in the future. They found that if the pace of climate change did not remain steady, summers in the Northern Hemisphere could last about six months, while winters could last less than two months.
In their study, Guan and his colleagues measured the onset of summer based on the onset of the highest temperature of 25 percent during that period. They said winter was defined as the beginning of the coldest 25 percent temperature.
Previous research has shown that the effects of climate change are having an impact on the planet’s asons – making summers hotter and longer and winters shorter and hotter – but Guan said he was surprised by the dramatic results of his team’s future forecasts.
“We first saw 2050 and then calculated the change in 2100, and that was a big number,” Guan said. “For human well-being, I really hope these results are wrong.”
Changes in the earth’s asons pose a threat to the environment and human health. Warm and long summers, for example, mosquitoes and other disease-carrying insects can increase their range and remain stable where they do not normally meet.
Scott Sheridan, a climate scientist at Kent State University, said, “You can reach a place where insects like malarial mosquitoes that are usually kept outside high-altitude areas, because they can’t live overnight, can survive longer and at higher altitudes. Is, “said Scott Sheridan, a climate scientist at Kent State University. Ohio, who were not involved in the study.
And because asons determine the life cycle of Tuo plants and animals, climate change can disrupt a species’ ability to adapt.
“If the asons start to change, everything won’t change completely in harmony,” Sheridan said. “If we take the example of flowers coming from the ground, those flowers may come out, but the bees are not yet for pollen or they have already come to their top.”
Climate change is also making you more volatile, Sheridan said, which could have far-reaching effects on agricultural production. For example, the U.S. In March 2016, the “wrong spring”, the temptation of illegal hot weather, was a symptom of a drop in temperature again in April, ahead of schedule for the week before.
“Kicking everything into high gear thinking it originated early in the summer,” Sheridan said. “A large amount of the cherry crop was lost in the state of Michigan. The result was the same with the peach crop in the south.”
Indeed, scientists are eager to know exactly how climate change will affect the Tuo due to its potential impact on food production.
Weston Anderson, a postdoctoral researcher at Columbia University’s International Research Institute for Climate and Society, studies the effects of climate change on agriculture and food security. Global warming not only affects when and how certain crops grow, but also how much they bloom.
“One of the main concerns is how the temperature will affect the timing of crop growth,” said Anderson, who was not involved with the recent study. “It means how fast the crop matures, and how much the crop yield is affected as a result.”
Although there are global spillover effects of food production issues, the Mediterranean region seems to be a region particularly vulnerable to global warming, Anderson said.
“We are already seeing in the Mediterranean that temperatures are rising and the region is getting drier, so no less suitable for wheat cultivation,” he said. He added that even semi-arid places are already vulnerable.
Sheridan said the study’s findings help to clarify the severity of climate change in terms of how humans, other animals, plants and the environment interact with each other.
“Moving in season can be more devastating than you think when you realize all the systems that suit your time.”
