I was curious So I graphed percent of CONUS in drought according to the US drought monitor, data is weekly from 1/2000 https://droughtmonitor.unl.edu/CurrentMap.aspx pic.twitter.com/66hAk2eSNJ
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Here from US EPA is the same data by drought category https://www.epa.gov/climate-indicators/climate-change-indicators-drought …pic.twitter.com/EJyvncynqe
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And here from EPA is a longer time series, 1895-2020 for CONUS Note: On this graph up means wetter, down means dryer https://www.epa.gov/climate-indicators/climate-change-indicators-drought …pic.twitter.com/M9rXm1NDxi
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And here is the percent in drought (D0-D4) of the Colorado River Basin over Jan 2000 to present https://droughtmonitor.unl.edu/CurrentMap.aspx pic.twitter.com/60NugzX4Ke
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And here is Colorado River Basin drought 1901-2015 via McCabe et al 2020 https://journals.ametsoc.org/view/journals/eint/24/2/eiD200001.xml …pic.twitter.com/gVYFWRe5Pv
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And for a much longer perspective, here is Colorado River Basin drought over the past 1800 years Also from McCabe et al 2020pic.twitter.com/qFG2TINNZP
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TL;DR Here are the conclusions of McCabe et al 2020 Well worth reading carefullypic.twitter.com/FvKqBZYhEF
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And here is what the US National Climate Assessment concluded on drought in 2018 https://nca2018.globalchange.gov/chapter/2/ pic.twitter.com/vgOjZAnOPE
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PS A side note For accurately citing peer reviewed literature & US NCA on drought trends in 2013 Congressional testimony, I earned the distinction of being the only US researcher in history to be attacked by the president's science advisor (Holdren) in a White House blog post
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PPS Holdren is still wrong The IPCC, USNCA & peer reviewed literature that they rely on is still correct Climate change is real, and aggressive mitigation & adaptation policies make good sense The reality of climate change doesn't mean scientific integrity can be ignored /END
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Oh, I guess I should point out Holdren's false claims about me posted on White House website were basis for a subsequent Congressional investigation of me that turned my life upside down & almost ended my career But I'm still here And that kids is how I came to understand tenure
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End of conversation
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long term it looks like maybe there's a slight upward trend but r² is probably super weak
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