On Wednesday, the main storms occurred by crossing extreme floods and huge tornadoes in the central and southern United States. From Arkansas to Michigan. And if the soil is saturated and the water accumulates, the condition is expected to deteriorate on Friday. National Weather Service warns With the dangers of very large hail and more Twistters, “life threatening, deadly and potentially historical flash floods”. 8 people So far, it has been confirmed to be dead 33 million There is a flood clock in 11 states.
Scientists need to conduct appropriate research on how much climate change is contributing to these storms and exactly what it is known as attribute studies, but in general, planet warming makes this event worse. Climate change does not cause this storm, and it may have occurred regardless of all extra carbon pumped by humanity, but there is a clear trend that rainfall deteriorates.
Marc Alessi, a climate science researcher at the Massachusetts Union, said, “In a world where fossil fuels are not burning.” But this event will be more frequent due to the combustion of fossil fuels due to more heat up due to warming planets.
Rainfall is changing because the earth sweats. When the sun evaporates on the surface of the earth, the moisture rises to the atmosphere, condensation, and rain. but Greenhouse gas The trap is heated to sweat more. In other words, it has an energy balance.
The warm atmosphere is “thirsty”. In every warmth, the air can accommodate 6-7 % more water. It means that more moisture can rain. The slow moving storm this weekend 15 inches Rain in some areas. “In this case, the sponge, the waiting sponge, will be bigger, which can lead to more water and carry it from the sea to the sea.”
The body of the water in the problem here is only Mexico. It is typical that tornadoes and heavy rains occur because warm water sends moisture to the southern and central parts of the United States. And now Mexico is very warm. “There are much more fuel that can lead to more floods,” Alessi said. Not clear.))
Thus, warm Mexico only produces more moisture, but also can absorb more water than before the climate change that humans have granted. In fact, the US government Your own climate evaluation As a result, it warns that precipitation is already increasing nationwide, just like economic damages caused by floods. It is expected to worsen with all additional warming.
The problem is that the US city is not made to withstand this new air reality. Urban Planners designed for different climates yesterday with a girter and a sewer that brushes the rain as soon as possible to prevent floods. Due to more extreme rainfall, the infrastructure cannot be maintained, so water accumulates and floods. And the storm, which lasts a few days, such as Arkansas and Kentucky, is saturated until the soil can no longer catch water, making the flood worse. Thursday, rescuers in Nashville, Tennessee Scrambling to save people The water level is soaring and trapped.
For example, scientists need to choose data to find out how additional storms have fallen due to Mexico’s unique sponge effect and warming. But the overall trend is rich. When the earth is warm, it is not always dry but not humid.
