Daily Roundup: May 25, 2011

Coal-laboration: Eight Greenpeace activists were arrested after scaling the 400-foot smokestacks of Chicago coal-fired power plants Fisk and Crawford, hanging banners and painting "QUIT COAL" down one of the stacks. Other Greenpeace demonstrators halted a coal barge headed for the Crawford plant. Chicago Sun-Times

Exploring the Depths: Researchers from the California Academy of Sciences began the most in-depth biological survey ever conducted in the Phillipines. The waters surrounding the island of Luzon are thought to be the world's most biodiverse. New York Times

Ash-ta La Vista: Iceland’s Grimsvotn volcano erupted, causing only minor delays in European air traffic; despite lingering ash clouds, most airlines are operating on schedule. Reuters

Green Grazers: A USDA study found that keeping cattle outdoors can significantly reduce farms’ greenhouse-gas emissions. Science Daily

Winds of Change: Google announced its plans to invest $5 billion in yet another major wind farm project, which could provide California with 30% of its energy. Official Google Blog

--Mimi Dwyer