Wednesday, October 21

Climate change warms nights faster than days

A new report indicates that global warming is not only affecting specific parts of the planet, but is increasing night temperatures at a faster rate compared to daytime ones. If successive summers seem increasingly hot to you, it is not your imagination, it is one of the consequences of climate change and that could affect our way of living for decades to come. Now a new study claims that “climate change is raising nighttime temperatures around the world faster than daytime temperatures,” something that could have significant implications for the environment and also for people’s health that would increasingly have more difficult to sleep on hot summer nights. So far we know that the Arctic is the mirror of what is going to happen in the rest of the planet, but so far very little research had been done regarding the increase in nighttime temperatures compared to daytime temperatures with climate change. This would not only affect human beings, but also fauna and flora and with it the extinction of thousands of species around the world. For the report, created by scientists from the University of Exeter, they used records of temperature, cloud cover, specific humidity and precipitation to measure the differences between temperature increases during the night and during the day. They applied this model to the warming period between 1983 and 2017 and found a mean annual temperature difference of more than 0.25 ° C between night and day over more than half of the planet’s land surface. The study clarifies that in many of these regions studied, days continued to warm more rapidly than nights, but curiously, the total area of ​​the regions that experienced greater night-time warming was more than twice as large. To explain the asymmetric warming phenomenon, the researchers note that it is largely due to changes in cloud cover. Climate change will hit some areas of the planet more violently than others, especially developing countries and the poorest areas. “We show that increased nighttime warming is associated with increasingly humid weather, and this has been shown to have important consequences for plant growth and how species such as insects and mammals interact.” On the other hand, they add, “we show that greater diurnal warming is associated with drier conditions, combined with higher levels of general warming, which increases the vulnerability of the species to heat stress and dehydration. Species that are only active at night or during the day will be particularly affected. ”

[Vía: Newatlas]computerhoy.com

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