"Despite decades of climate negotiations, we have not stopped adding to CO2 in the atmosphere. Rather, the process is speeding up. That is why it is so urgent that we have a global agreement to immediately stop any new fossil fuel projects, to phase out existing uses of fossil fuels, and to go full tilt into a renewable energy future with everything we’ve got."

This week's Best in Climate article makes the case for a global Fossil Fuel Nonproliferation Treaty, inspired by the Treaty on the Non-Proliferation of Nuclear Weapons (NPT).