In the early morning hours of Friday, at shortly after midnight, a scene of horror unfolded, gunfire broke out, after the carnage, 12 people lay dead and another 50 were injured in an Aurora Century 16 theater.
Global emissions of carbon dioxide (CO2) – the main cause of global warming – increased by 3% last year, reaching an all-time high of 34 billion tons in 2011. In China, the world's most populous country, average emissions of CO2 increased by 9% to 7.2 tons per capita.