President Obama arrived in Copenhagen this morning to address the UN conference on climate change. In a stern speech delivered hours after his arrival, Obama told world leaders and their delegates that "the time for talk is over... All of you would not be here unless you — like me — were convinced that this danger is real. This is not fiction, it is science." The President's arrival came as any agreement on climate change remained out of reach, and China, the world’s leading emitter of greenhouse gas pollutants, was accused of holding back progress in the climate talks by French President Nicolas Sarkozy. During his address (text here, video below), Obama expressed frustration and urgency: more ›

Listen up, Twitterati: a very important announcement has been made. One man has put out a "Call for Speakers (and Characters)" for the 140 Characters Conference, being held June 16th and 17th right here in New York. That's right, a Twitter conference. The announcement is 3146 characters long (with spaces), so you'll have to click through and read yourself if you have that kind of attention span, but we did see something about anticipating established celebrity Twitterers to attend, so hopefully @aplusk and @mrskutcher are reading. For the non-Twitterers out there, you will enjoy this video. more ›