Scripps says climate change may represent “existential” threat to humanity. Ashley Dawson on the global calculus of climate disaster. Good news: Avoiding catastrophic climate change isn’t impossible yet — just incredibly hard. The real unknown of climate change: Our behavior. Harvey, Irma, Maria: This is the hurricane season scientists expected — and feared. You might think that living through a hurricane will change people’s minds about global warming — not so much. Harrowing storms may move climate debate, if not G.O.P. leaders. The ecological is political: In the coming crisis, inequality will kill as many people as storms do.
