UC Berkeley students from CALPIRG, Powershift, Avaaz, and other environmental groups hosted a flashmob of about fifty students Monday to raise awareness about global warming. The students, dressed in attention-demanding red, gathered in Sproul Plaza where they set off their cell-phone alarms and and banged pots and pans, collectively ‘sounding the alarm’ on the issue. At least thirty students then called Senator Dianne Feinstein and President Obama on every available phone, urging them to support the American Clean Energy and Security Act (ACES) and take a strong stance against global wa