What a farce. Spend $20 TRILLION today and maybe, just MAYBE, get $30 trillion of benefits CENTURIES from now.
Economics isn't called "the dismal science" for no reason.
In the real world, a $20 trillion tax would first and foremost line the pockets of politicians, tyrants, caudillos, strong-men, warlords, and despots the world over. The next tranche would be used to buy votes. The remaining trillion would be spent on useless Obama-style "green" energy projects that would all go bankrupt. We'd be impoverished, innovation would stop, unemployment would soar, and the world would plunge into centuries-long depression.
This Nobel-winning climate economist doesn't have a clue how the real world works.
Don't forget Paul Krugman. He got his Nobel from big government types for promoting big government.
Saw that Rodney Dangerfield movie the other night, "Back to School" or whatever, pointing out to the business prof how the real business world of unions, government permits, etc., works...