Slashing sulfur dioxide pollution in the United States and Europe above the previous a long time counts as a single of the most important environmental achievements stories. Air pollution kills. The US Clear Air Act will add additional than a year of life to the normal American. But lowering this pollution also will come with an vital, unintended, and unforeseen consequence: a warming earth. Aerosols, the great particles in air pollution, replicate a tiny part of daylight back again into place and, so, essentially assistance preserve worldwide warming in check out. Which is accurate even with the carbon dioxide emissions coming from the exact same smokestacks that heat the earth.
Slashing sulfur dioxide pollution in the United States and Europe above the previous a long time counts as a single of the most important environmental achievements stories. Air pollution kills. The US Clear Air Act will add additional than a year of life to the normal American. But lowering this pollution also will come with an vital, unintended, and unforeseen consequence: a warming earth.
Aerosols, the great particles in air pollution, replicate a tiny part of daylight back again into place and, so, essentially assistance preserve worldwide warming in check out. Which is accurate even with the carbon dioxide emissions coming from the exact same smokestacks that heat the earth.
David Keith is a professor of utilized physics and public coverage at Harvard. Gernot Wagner is a research associate at Harvard and co-writer of the reserve Climate Shock.