We've got a message for the leaders of the richest nations in the world who are gathering here in London for the G20 meeting to discuss the global economic crisis - put the climate and people first.
15 activists unfurled this 50m x 30m banner from the bridge at the Guanabara bay in Rio de Janeiro, Brazil.
We decided to send this message from the birthplace of two of the most important UN conventions of modern times, addressing both climate change and biodiversity.
The huge wave of hope created by the World Summit ECO-92 (better known as the Earth Summit) in Rio in 1992 - that all countries would work together to save life on Earth - has vanished. After 17 years without serious action by the world's leaders to cure our collective addiction to fossil fuels, the planet is close to reaching the point where runaway climate change can't be averted - unless we act now.