the absolute desolation. we've been driving in here for 20 miles from the outskirts of the city and there's no one here. imagine someone at a viewing when they've died and they seem like they're okay because they've been made up by the undertaker but they're dead, they're gone. that's what it felt like then. joining me is "today" show co-anchor al roker. his new book "storm of the century." the great gulf hurricane of 1900. al roker, an honor to have you on, sir. i have to let you talk about the hurricane of 1900, but i want to talk about climate change tonight. what's going on in a place like d.c. where we always like knowing it was going to be horrendous in july and august but at least predictability hot, humid, 100-degree weather. you can't even predict that any more. start with 1900. >> we start with 1900. this is still to this day, it is