Basic physics tells us a warmer atmosphere can hold more moisture, and that, at some point, that moisture will condense and fall as rain. That’s why climate scientists are certain that global warming will lead to more extreme rainfall, as has already been documented in various parts of the world the past few decades.
A new study now helps quantify the impact of warming and also reveals regional patterns that will help people prepare. According to the researchers with MIT and the Swiss Federal Institute of Technology, the most extreme rain events in most regions of the world will increase in intensity by 3 to 15 percent, depending on region, for every degree Celsius that the planet warms. Continue reading “Global warming drives more extreme rainfall”→
Latest modeling offers a nuanced picture of rainfall changes
By Summit Voice
FRISCO — NASA scientists say one of their latest modeling studies supports previous research suggesting that global warming will intensify rainfall and drought.
An analysis of computer simulations from 14 climate models indicates wet regions of the world, such as the equatorial Pacific Ocean and Asian monsoon regions, will see increases in heavy precipitation because of warming resulting from projected increases in carbon dioxide levels. Arid land areas outside the tropics and many regions with moderate rainfall could become drier.
SUMMIT COUNTY — Large parts of the northern hemisphere could see a 20 to 30 percent increase in extreme precipitation events by the end of the century. Extra moisture due to a warmer atmosphere dominates all other factors, leading to notable increases in the most intense precipitation rates, according to a new NOAA-led study.
The study shows a 20-30 percent expected increase in the maximum precipitation possible over large portions of the Northern Hemisphere by the end of the 21st century if greenhouse gases continue to rise at a high emissions rate.
Rainfall intensity to increase 7 percent with every degree of global warming
By Summit Voice
SUMMIT COUNTY — Climate scientists have long said that a warming Earth will result in more intense rainstorms. Warmer air holds more moisture, and the additional thermal energy in the atmosphere can stir up more storms.