Editor's Summary
3 April 2008
A big ask
Last year's UN Climate Conference in Bali set a two-year agenda for negotiations on a successor to the Kyoto Protocol. But as Pielke et al. argue in this issue, the Bali delegates and policy-makers across the world may be vastly under-estimating the technological changes that will be needed if carbon dioxide emissions are to be stabilized.
Commentary: Dangerous assumptions
How big is the energy challenge of climate change? The technological advances needed to stabilize carbon-dioxide emissions may be greater than we think, argue Roger Pielke Jr, Tom Wigley and Christopher Green.
doi:10.1038/452531a
News: Are the IPCC scenarios 'unachievable'?
Claim that the challenge of cutting emissions has been underestimated is debated.
Quirin Schiermeier
doi:10.1038/452508a