Rough estimates indicate deforestation still contributes around four billion tons of planet-warming CO2 to the atmosphere each year, an eighth of the human total.
粗鲁估计，森林砍伐每年向大气中产生大约40亿吨温室气体CO2，占到人类排放总量的八分之一。
During this six-week research cruise, scientists investigated how gases, including carbon dioxide, move between the ocean and the atmosphere in high winds and rough seas.
在这6个星期的研究巡航期间，科学家调查了在大风和风大浪急的海面的情况下，气体，包括二氧化碳，是如何在海洋和大气之间。
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