On Saturday, March 24 at 8:30 p.m. local time, skylines around the world will go dark as millions celebrate WWF's Earth Hour to spark global awareness and action on nature and the environment.
From the Eiffel Tower to the Empire State Building, and the Bird's Nest stadium to Burj Khalifa, thousands of landmarks will switch off their lights in solidarity for the planet, urging individuals, businesses and governments worldwide to move forward the conversations and solutions we need to build a healthy, sustainable future for all.
By Alex Kirby
The global watchdog responsible for protecting the world's wealth of species, the UN's Convention on Biological Diversity (CBD), has looked at the hopes for reining in climate change through geoengineering. Its bleak conclusion, echoing that reached by many independent scientists, is that the chances are "highly uncertain."