(FILES) British broadcaster and biologist David Attenborough takes part in a discussion on nature and the economy during the IMF - World Bank Spring Meetings at International Monetary Fund Headquarters in Washington, DC, April 11, 2019. David Attenborough, a leading voice on climate change and biodiversity loss, whose landmark documentaries transformed popular understanding of the natural world for a global audience, is set to mark his 100th birthday on May 8th. (Photo by MANDEL NGAN / AFP via Getty Images)