Fact Check: US Senator Feinstein's claim on temperature rise at Lake Tahoe

The following has not yet been verified. Please improve it by logging in and editing it. If you believe that is not sufficient to solve the problem, please discuss it with the community on the Talk Page. If you think that this article should be removed, please contact [email protected]

U.S. Senator Dianne Feinstein wrote a tweet on August 7, claiming that Lake Tahoe, which straddles California and Nevada, was warming faster than the oceans and 14 times faster than the historical average.

Sen Dianne Feinstein on Twitter

Lake Tahoe is warming faster than the oceans, 14 times faster than the historical average. We must #ActOnClimate if we want to save the lake! #TahoeSummit

Claim:

Lake Tahoe is warming 14 times faster than the historical average.

Fact check: Mostly True

The UC Davis Tahoe Environmental Research Center posts a public annual report about the state of the lake.

The Tahoe: State of the lake report 2016 reports that in the last four years the lake has warmed at an alarming rate of over 0.3 °F/year. That is 15 times faster than the long-term warming rate.

The report from 2017 states that in the last four years the lake has warmed at an alarming rate of over 0.5 °F/year, 14 times faster than the long-term warming rate.

These two reports seem to support the claim from the Senator. However the most recent report from 2018 shows that the volume-averaged temperature increased by only 0.04 °F over the previous year. Since 2012, the average temperature of the lake has warmed by 1.1 °F. That is rate of 0.18 °F/year. This is not 14 times faster than the long-term warming rate.

The statement from Senator Feinstein is thus false for the year 2018, but is true for the years 2016 and 2017. Therefor this claim is mostly true.

Annual average water temperature Lake Tahoe 2018
  • TODO tags

      Is there a problem with this article? [Join] today to let people know and help build the news.
      • Share
        Share
      • Topics

      Subscribe to our newsletter

      Be the first to collaborate on our developing articles

      WikiTribune Open menu Close Search Like Back Next Open menu Close menu Play video RSS Feed Share on Facebook Share on Twitter Share on Reddit Follow us on Instagram Follow us on Youtube Connect with us on Linkedin Connect with us on Discord Email us