Butterflies, wasps, concerts, and a documentary . Those are just some of the ways the world is celebrating lifelong environmentalist and broadcaster David Attenborough ’s 100th birthday. Attenborough has spent decades bringing nature’s wonders to television screens around the world and advocating for environmental conservation and climate action . His birthday on May 8 is being feted by fans in the U.K. and around the world.  The BBC, where Attenborough first built his career as a presenter and created the 1979 blockbuster series Life on Earth , will host a live event honoring the naturalist on May 8 at London’s Royal Albert Hall. The event will showcase wildlife stories and reflections from public figures and environmental advocates, and will feature special performances from music artists who have collaborated on some of Attenborough’s series, including Dan Smith, frontman of the band Bastille, and the Icelandic band Sigur Rós will perform Hoppípolla.…