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We have to remove the CO2 that the industrial economy has already emitted, which otherwise will remain in the atmosphere for hundreds of years and alter the Earth's climate irreversibly. It is possible to do this.

"Global Warming and the Future of Humanity: An Interview With Noam Chomsky and Graciela Chichilnisky". Interview with C.J. Polychroniou, truthout.org. September 17, 2016.
We have to remove the CO2 that the industrial economy has already emitted, which otherwise will remain in the atmosphere for hundreds of years and alter the Earth's climate irreversibly. It is possible to do this.