NBCNews.comThousands March for Climate ChangeNBCNews.comDemonstrators are making their way through the streets of cities around the world of a series of global marches over climate change. Thousands filled the streets of New York City Sunday near Columbus Circle and Broadway, including actors Mark Ruffalo and ...Marches on global warming draw thousandsThe Times-Picayune - NOLA.comall 24 news articles »