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Climate sensitivity uncertainty and the need for energy without CO2 emission

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K. Caldeira
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This paper states that at least three quarters of the world's power must come from clean sources by the end of this century to sufficiently limit global warming. The study shows that even the most conservative estimates of future warming point to a need for tremendous amounts of clean power development.The researchers analysed how uncertainties about the way in which climate responds to greenhouse gas concentrations affects the amount of non-polluting power that is needed to keep global warming below 2°C.The paper states that unless climate sensitivity is low and acceptable amounts of climate change are high, climate stabilization will require a massive transition to CO2 emission-free energy technologies. The authors say that a massive shift towards clean energy is required, estimating that the equivalent of a zero-emissions power plant would need to be created somewhere in the world every day for the next 50 years in order to keep global warming in check.Abstract adapted from SciDevNet, by Katie Mantell