Tourists cool off at a hotel in Rio de Janeiro. The host city for the U.N.-sponsored Rio+20 conference is woefully lacking in accommodations for the green summit, with a total of 33,000 beds. Before cancellations, more than 50,000 diplomats and staffers were expected to come to Brazil for the June 20-22 summit. (Associated Press)

Tourists cool off at a hotel in Rio de Janeiro. The host city for the U.N.-sponsored Rio+20 conference is woefully lacking in accommodations for the green summit, with a total of 33,000 beds. Before cancellations, more than 50,000 diplomats and staffers were expected to come to Brazil for the June 20-22 summit. (Associated Press)