National Public Radio: The forecast calls for picture-perfect weather Tuesday in New York City as world leaders gather to discuss the challenge of a changing climate.
More than 120 leaders, including President Obama, are expected to attend the one-day climate summit, sponsored by the United Nations. They've been instructed to arrive with "bold ideas" to slow the rise in global temperatures.
Tens of thousands of climate activists marched through midtown Manhattan on Sunday. The demonstration, dubbed the People's Climate...