Katowice, Poland
Attenborough warning: Beloved British nature documentarian David Attenborough issued a dire warning for the planet this week at the United Nations’ annual climatechange conference. “We are facing a man-made disaster of global scale, our greatest threat in thousands of years: climate change,” Attenborough said. “If we don’t take action, the collapse of our civilizations and the extinction of much of the natural world is on the horizon.” Attenborough, 92, was once a climate skeptic but said the scientific evidence is now overwhelming. Some 30,000 people, including world leaders and business executives, met in Katowice to discuss how to achieve the emissions-reduction goals agreed on in Paris in 2015. The U.S. pulled out of the Paris climate agreement last year and sent only a small delegation to Poland.