Christopher Flavelle Bloomberg

A top investment strategist for JPMorgan Asset Management sent a note to clients earlier this year with a dire forecast. Despite global efforts to stop climate change, sea levels are likely to rise dramatically, threatening the 40 percent of Americans who live along the coast.

A top investment strategist for JPMorgan Asset Management sent a note to clients earlier this year with a dire forecast. Despite global efforts to stop climate change, sea levels are likely to rise dramatically, threatening the 40 percent of Americans who live along the coast.