Considering what's involved in his vacations and shows, way more then his fair share. Considering he helped normalize climate change denial to the masses, even more.
I'd settle for "I'm a car show host, why the fuck are you looking to me for climate advice. For the love of everything you hold dear, listen to the fucking scientists"
Like it or not he is a big part of deciding the direction of car culture and what cars are cool and what cars are lame. Had he focused more on electric cars* or spent less time demonizing and othering bikes and buses then things could have gone better.
* Electric Cars are not an ultimate solution to climate change but they are important transitionary technology while countries rework their infrastructure.