Sydney Morning Herald: The world must take radical steps to combat climate change, and begin right away -- but if it does, the cost of a greener, healthier future will be surprisingly small.
However if the world wishes to avoid ecological catastrophe, it will probably need new technologies that suck carbon dioxide out of the atmosphere and bury it underground.
This is the message of a new major climate change report from the UN's Intergovernmental Panel on Climate Change, released in Berlin on Sunday.
Members...