Comment by dietdrb

This industrial approach to carbon dioxide removal is but one of several in our toolkit, and by no means the least expensive.

Project Drawdown ranks every approach in terms of tonnage of CO2 and cost. http://www.drawdown.org/solutions-summary-by-rank

These approaches get amplified by a price on carbon. If you are interested in convincing your Member of Congress to price carbon, take a look at the most effective organization doing this work: http://www.citizensclimatelobby.org