<div dir="ltr"><div><div class="gmail-Component-headline-0-2-32" style="box-sizing:border-box;color:rgb(44,44,44);font-family:GoodOT,Arial,sans-serif;background-color:rgb(245,245,245)"><h1 class="gmail-Component-heading-0-2-33" style="box-sizing:border-box;margin:0px;font-family:GoodOT-Cond,"Arial Narrow",Arial,sans-serif;padding-top:2.5rem"><font size="4">Trump spurns science on climate: ‘Don’t think science knows’</font></h1><div><a href="https://apnews.com/article/climate-climate-change-elections-joe-biden-campaigns-bd152cd786b58e45c61bebf2457f9930">https://apnews.com/article/climate-climate-change-elections-joe-biden-campaigns-bd152cd786b58e45c61bebf2457f9930</a><font size="2"><br></font></div></div><div class="gmail-Component-signature-0-2-34" style="box-sizing:border-box;margin:0.5rem 0px 1rem;display:inline-flex;font-family:GoodOT,Arial,sans-serif;color:rgb(44,44,44);font-size:medium;background-color:rgb(245,245,245)"><div class="gmail-Component-signature-0-2-34" style="box-sizing:border-box;margin:0.5rem 0px 1rem;display:inline-flex"><span class="gmail-Timestamp gmail-Component-root-0-2-37 gmail-Component-timestamp-0-2-36" title="2020-09-15 00:02:24 - Mon Sep 14 2020 17:02:24 GMT-0700 (Pacific Daylight Time)" style="box-sizing:border-box;color:rgb(130,130,130)">September 14, 2020</span></div><span style="font-family:FreightText,Georgia,serif;font-size:18px">SACRAMENTO, Calif. (AP) — With the smell of California wildfires in the air, President Donald Trump on Monday ignored the scientific consensus that climate change is playing a central role in historic West Coast infernos and renewed his unfounded claim that failure to rake forest floors and clear dead timber is mostly to blame.</span></div></div><div>-----------------------------------------</div><div><br></div><div><a href="https://par.nsf.gov/servlets/purl/10148153">https://par.nsf.gov/servlets/purl/10148153</a><br></div><div><br></div>DROUGHT <div><br></div><div>Large contribution from anthropogenic warming
to an emerging North American megadrought </div><div><br></div><div>A. Park Williams1
*, Edward R. Cook1
, Jason E. Smerdon1
, Benjamin I. Cook1,2, John T. Abatzoglou3,4,
Kasey Bolles1
, Seung H. Baek1,5, Andrew M. Badger6,7,8, Ben Livneh6,9 </div><div><br></div><div>Severe and persistent 21st-century drought in southwestern North America (SWNA) motivates
comparisons to medieval megadroughts and questions about the role of anthropogenic climate change.
We use hydrological modeling and new 1200-year tree-ring reconstructions of summer soil moisture
to demonstrate that the 2000–2018 SWNA drought was the second driest 19-year period since
800 CE, exceeded only by a late-1500s megadrought. The megadrought-like trajectory of 2000–2018
soil moisture was driven by natural variability superimposed on drying due to anthropogenic
warming. Anthropogenic trends in temperature, relative humidity, and precipitation estimated from
31 climate models account for 47% (model interquartiles of 35 to 105%) of the 2000–2018 drought
severity, pushing an otherwise moderate drought onto a trajectory comparable to the worst SWNA
megadroughts since 800 CE <br></div><div>---------------------------------------</div><div><br>Vision2020 Post: Ted Moffett</div></div>