Is Obama behind the Ebola outbreak? Are planes poisoning us? Is Lady Gaga part of an evil Illuminati plot? The five conspiracy theories you won't believe people believe The best conspiracy theories are like enchanting mazes of logic whose thresholds, once crossed, are hard to return from. As

The planet is hot and getting hotter. But while most plans to use geoengineering to alter the weather have been rather hypothetical, now a pair of Harvard engineers have announced that they intend to spray thousands of tons of particles into the sky to block the sun’s rays—within the coming year.

A U.S. Secret Service agent with an automatic rifle hurries people to evacuate the White House complex over a security alert moments after President Barack Obama and his family left for the presidential retreat, Camp David, in Maryland, September 19, 2014. A man jumped over the White House fence