ozone
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Mexico City’s Doubling Down On Its Car Ban To Clear Smoggy Skies
A plan to restrict private vehicles from Mexico City’s downtown hasn’t done enough to reduce air pollution, so the city is now asking twice as many cars to stay off the roads.
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Don’t Panic: The Ozone Hole’s Holding Steady
Despite research suggesting that the ozone layer is still being chewed apart, NASA’s most recent study of the Antarctic ozone hole reveals it isn’t getting any larger.