Most people and nations now recognise the need to reduce greenhouse gas emissions to avoid dangerous climate change. However, there is a growing fear that this fragile support for action could be at risk because geoengineering - the large-scale manipulation of the environment to counteract climate change - is now receiving serious attention from scientists, policy-makers and the media.
THE back-up plan for saving the world is no longer a joke. This week, a major scientific institution has published a comprehensive review of possible ways to engineer the climate to reverse global warming. The UK Royal Society's review of geoengineering will make it difficult for governments to ignore the issue.
Spewing Tons Of Sulphur-Based Particles Into Upper Atmosphere Could Help Curb Warming
The Royal Society is backing research into simulated volcanic eruptions, spraying millions of tons of dust into the air, in an attempt to stave off climate change.
The US's stance on climate change has shifted beyond recognition. President Barack Obama's science adviser John Holdren tells Graham Lawton how the US will put its house in order, secure a deal at the make-or-break summit in Copenhagen, and lead the world's fight against dangerous climate change.
