Finnish startup company Norsepower installed its rotor sail technology on the Maersk Pelican tanker, Aug. 29, 2018, in Rotterdam, Netherlands, in the first such installation on a tanker as the shipping industry tries new solutions in an effort to cut greenhouse gas emissions. The Maersk Pelican oil tanker is testing Norsepower’s 30 meter (98 foot) deck-mounted spinning columns, which convert wind into thrust based on an idea first floated nearly a century ago. Transport’s contribution to earth-warming emissions are the subject of investigations as negotiators gather in Katowice, Poland, for U.N. COP24 climate talks. (Casper Hariot/Maersk Tankers via Associated Press

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