"Climate change" is a euphemism for "limit the actions and wealth potential of anyone under the billionaire threshold"...as George Carlin said, "What they want is more for them and less for anybody else"...I guess Jeff realizes he's going to have to pay something to buy that...I wonder what 10 billion dollars US represents in terms of his yearly earnings? 3%? 5%? Cheap at twice the price.
I read an interesting statement yesterday..."It's 2589 B.C.E. You, who are immortal, decide you will save the equivalent of $10,000 every day, and you begin to do so.

 Fast forward to 2020:  you've been saving $10,000 every day for all these years:  and you have amassed about 1/5 of what today's top 5 billionaires have for wealth."  

(This just from memory, could be somewhat different from the original, but you get the idea)