Representative Concentrations Pathway News Today

Recently there has been widespread discussion that perhaps the Earths climate is not quite as sensitive to increasing atmospheric CO2 as climate scientists previously believed, which would be good news, because it would give us more time to reduce human greenhouse gas emissions before the worst climate change impacts are triggered.  The case for a most likely equilibrium climate sensitivity of around 2.5°C average surface warming in response to a doubling of CO2, as opposed to 3°C, ...