Romm makes a nearly incomprehensible bet :

*Let’s define “Ibet” as “the average of the Arctic sea ice extent minimum for the three years 2018-2020″ minus 4.6 million sq. km*

*The bet again is that we each agree to donate money to the others designated charity using the following formula:*

*Bastardi pays $1,000 minus [$1,000 times Ibet/2 Msqkm]. ***I pay $1,000 plus [$1,000 times Ibet/2 Msqkm].**

*If there is no change in the sea ice extent minimum, we both pay $1000. If extent drops 2 million sq. km, then Bastardi pays $2000 and I pay zero. If extent grows 2 million sq. km, then I pay 2k and Bastardi pays zero. *** If extent grows 3 million sq. km, then I pay 3k** and Bastardi pays zero. Again, being very wrong is doubly costly.

http://climateprogress.org/

If extent grows 3 million km^2, IBet = 3 million km^2. Using his formula, he pays $2500, not $3000 as he calculated.

$1000 + ($1000 * 3,000,000/2,000,000) = $2,500

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Oh my. hahahahahahahahhaha

No wonder he can’t get his global temperature maths right. Romm is all huff.

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Free money for Joe.

In a last attempt to win the plea he makes a bet.

What a looser.

The other $500 is the negative 500 that Bastardi “owes” – the terms of the bet have negative values paid by the other party.

I’ll admit that it took me a good minute to recall that fact, but reference to it is in your quote! “…doubly costly..”