decarbonize
decarburize
decarbonise BrE
decoke

How about we don't decarbonize our power industry and save £200bn?

Five experts debate if carbon offsetting is the quick, efficient way to decarbonize the global economy, or the loophole that will derail such efforts.

He says that if the trend continues to evolve more or less naturally, with business as usual, it will take another century or so to decarbonize the energy system fully.

Last month, Google CEO Eric Schmidt, who has acted as an advisor to Obama on tech issues, told a Washington, DC audience that the economic crisis provided an opportunity to "decarbonize our economy."

The oxygen in iron oxide and other impurities decarburize the pig iron by burning the carbon away, forming steel.