Turn off Greenhouse gases at source

Gas by Gerry Wolff and Oliver Tickell

If we are looking after sheep, it’s easier to keep them in a field with the gate shut than to let them escape and try to round them up later. It is also simpler, cheaper and more effective to control fossil carbon upstream - at those relatively few places where coal, oil and gas come out of the ground, or where their flow is concentrated - than to control emissions downstream at the much larger number of emissions producing businesses or individuals. Likewise for other industrial greenhouse gases.