<ul><li>A funnel made of blimps can convect air high enough that CO2 freezes-out as dry ice and falls to the ground.</li><li>The funnel, consisting of a circle a mile across, can capture the entire global CO2 emissions.</li><li>The blimps in a ring, tethered to the ground, create a chimney that pulls air up inside, cools it to freeze and capture CO2, and then the captured carbon falls down the funnel.</li><li>With less than four-dozen funnels costing $20 billion, it is possible to eliminate all global carbon emissions.</li></ul>

The Fastest Path to Zero Carbon

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