It's 2% right now, but it will be a larger share as overall emissions shrink. Aviation is so hard to de-carbonize that it was removed from even the non-binding

It's 2% right now, but it will be a larger share as overall emissions shrink. Aviation is so hard to de-carbonize that it was removed from even the non-binding Paris Agreement. We're already working on most of the other 98% but there's not even a vague plan or a goal for reducing emissions from planes yet. That's why it's still news.