The cause isn't known. It's probably us, but saying "it's us" isn't helpful. Finding out the reason is helpful. It's hard enough to make changes to global huma

The cause isn't known. It's probably us, but saying "it's us" isn't helpful. Finding out the reason is helpful. It's hard enough to make changes to global human behavior when we have a well-defined problem with a known solution. Guessing at a cause and getting it wrong--or making hand-wavy statements about how the entirely of human behavior is a problem--not only doesn't help anything, it actively hurts efforts to solve problems. If you present people with evidence and with a pragmatic plan to solve a problem, they're more likely to act. Obviously we get it wrong far more often than we get it right, but there are success stories, like saving many birds from extinction by banning DDT. If you can't come up with a cause and a solution, you just come off as a crank. If you get the cause wrong or your solution doesn't work, that makes it all the harder to win support for the million other things that need fixing.