Columbia/NASA scientist Kate Marvel explains “hyroclimate” as rains and droughts go extreme. When it comes to your food, it’s all about moisture in the soil when crops need it. That is changing as the Earth warms, according to new science published in the journal Nature. When we load up the atmosphere with carbon-based power, we get more drought and worse floods.
Our guest is the lead author of the new study “Twentieth-century hydroclimate changes consistent with human influence“. Kate Marvel is with Columbia University and an Associate Research Scientist at NASA Goddard Institute for Space Studies. Following her PhD in physics at Cambridge, Kate investigated climate and energy at top research institutions like Stanford, Carnegie, and Lawrence Livermore National Laboratory. Kate is a communicator on various science shows, and has a regular column “Hot Planet” in Scientific American.
Show by Radio Ecoshock, reposted under CC License. Episode details at https://www.ecoshock.org/2019/05/at-the-edge-of-the-great-dying.html
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The press release from Columbia University sums it up:
“In an unusual new study, scientists say they have detected the fingerprint of human-driven global warming on patterns of drought and moisture across the world as far back as 1900. Rising temperatures are well documented back at least that far, but this is the first time researchers have identified resulting long-term global effects on the water supplies that feed crops and cities. Among the observations, the researchers documented drying of soils across much of populous North America, central America, Eurasia and the Mediterranean. Other areas, including the Indian subcontinent, have become wetter. They say the trends will continue, with severe consequences for humans. The study appears this week in the leading journal Nature.”
You can follow Kate Marvel’s work at http://www.marvelclimate.com/
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