An ominous report from the UN paints a dire picture about the direction the planet is heading without immediate climate action. The report says if the current pace continues it will result in global warming of more than 3 degrees Celsius by the end of the century - more than twice the rise agreed to nearly a decade ago. The world has currently warmed by about 1.3 C. UN Secretary General Antonio Guterres says a three degree rise in global temperatures would be “catastrophic.” Tapio Schneider Professor of Environmental Science and Engineering at the California Institute of Technology.