epa01908757 Activists of the Green movement dressed as animals or television series characters like Alf (L) rally to mark the International Day of Climate Action in Kiev, Ukraine, 24 October 2009. The action was one of thousands of similar events to be held in more than 170 countries worldwide in an bid to reduce the amount of carbon in the atmosphere to a level of 350 parts per million. EPA/SERGEY DOLZHENKO