This week there was lots of noise from the Twittersphere and Blogosphere over this tweet from climate scientist Ed Hawkins which was covered at WUWT: Making Global Warming Scarier
It received over 10,000 retweets so far. Eric Worrall wrote then:
Ed Hawkins, a professor at University of Reading, has ditched boring old graphs, and created an animated graphic which attempts to maximise the emotional impact of global warming data.
It’s true, and “spiral” has a special scary connotation since NSIDC’s Mark Serreze coined the phrase “death spiral” for Arctic Sea ice. Unfortunately for him, the ice is still there. Josh saw an opportunity to educate, and has done so splendidly by taking Hawkins own method and combining it with other climate data he did not display.
Here is the little video I created (using an iPad) to balance out Ed Hawkins very lovely modern global temperature change spirograph. Mine is not nearly as lovely but it does include Roman and Medieval Warming. And the Pause.
I used the graph from Dr. Judith Curry’s presentation (from Hannhijarvi et al ) as a basis for the numbers, but it is only an approximation.
Reference: Hannhijarvi et al, 2013 from https://curryja.files.wordpress.com/2016/05/spe-climate-2016.pdf