Uh, James Hansen, the scientist that discovered Climate Change and published the first scientific paper on it in 1989 is a Boomer. The negative effects from it have been impacting the planet for a very long time. Mostly likely less than 100 years after the Industrial Revolution. Al Gore, a Boomer, brought Climate Change mainstream in 2007, which is one of the primary reasons it is being taken seriously now. Boomer and Gen X scientists are the ones currently trying to solve this problem.