Vanessa Keith explores some simple yet radical ways to retrofit our urban building stock to address a chief cause of climate change: tropical deforestation.

In Part Two of Clip-On Architecture, Vanessa Keith looks at tropical deforestation and catalogues some sustainable solutions currently being applied in the developing world.

Vishaan Chakrabarti imagines a city-focused national strategy to make our country healthy, prosperous and green, in response to the 2009 Copenhagen climate change talks.