Misrepresenting The Past And Mispredicting The Future

Climate Change Denial in the Age of Trump | MICHAEL E. MANN

In the (now deleted) 2009 “Copenhagen Diagnosis” authored by such prestigious climate scientists as Michael Mann and Steven Schneider, they showed a sharp decline in Arctic sea ice from the 1960s through 2008, and predicted an ice-free Arctic by 2040.

Wayback Machine

I updated their graph with the latest data showing that the trend in Arctic sea ice over the past 14 years has flatlined.

The Arctic sea ice minimum is up nearly 50% from 2012.

osisaf_nh_sie_daily-all.png (1274×943)

Their prediction is failing badly, as is their representation of the past. They show a sharp drop in sea ice in the decade prior to 1979.

But the 1990 and 1995 IPCC reports show the exact opposite.

1990 IPCC Report

ipcc_sar_wg_I_full_report.pdf

And the 1985 DOE report showed that extent during the 1950s was much lower than the 1970s.

Projecting the climatic effects of increasing carbon dioxide 

This is standard practice for Michael Mann – misrepresenting the past and mispredicting the future.

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3 Responses to Misrepresenting The Past And Mispredicting The Future

  1. Gamecock says:

    ‘Their prediction is failing badly, as is their representation of the past.’

    Yeah, but they mentioned TRUMP OH MY!

  2. JohnC says:

    https://www.bbc.co.uk/news/science-environment-59105963 this doesn’t seem right to me. Sea levels rising at 4.4 mm? Rain in Greenland is a new phenomenon? Heatwave in north west USA/SW Canada unprecedented? Death Valley highest temperature?

  3. oldefarte says:

    Gee, one gets the sense, Mr. Heller, that the imminent loss of Arctic sea ice (which has been getting predicted for at least the last 33 years) may be overstated – maybe even wrong, but that can hardly be true. In fact, I just read an extended screed from the folks at “Gizmodo” which takes to task the various social network sites (Facebook, Twitter, YouTube, etc.) for not cracking down on this kind of climate change denial. Indeed, Gizmodo even published a “Rogues Gallery” of the Top 10 biggest offenders when it comes to denying AGW and other climate change truisms, urging that their lies be rigorously restrained and even blocked. I mean, you know, manmade climate change, melting arctics and all, must be true if its necessary to block any opinions calling those matters into question. Maybe you’d like to rethink these kinds of heresies before you do serious harm by sowing harmful doubt about Holy Writ.

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