National Geographic has an absolutely incredible issue out -- Global Warning, a compendium of articles, photos and graphics about how climate change is impacting the world in major and dire ways right now, today.
It's the best periodical coverage of climate change I've yet seen, period. The online version doesn't pack the wallop the print version does, but it's still pretty impressive.
(I'm afraid I can't find who recommended this - send me an email and I'll credit you properly. Sorry and thanks.)