We collectively need to demand that there is no
acceptable response to climate change other than strong emission reductions, ensuring that atmospheric concentrations of CO2 are returned to 350ppm
levels, global
temperature rise is kept (
at the maximum) 2 °C and, even better, 1.5 °C — to do that, as was emphasized on numerous occasions, we need a F.A.B. climate deal: Fair, Ambitious, and (perhaps most importantly) Binding.