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Pollutants trapped in Arctic snow can be reactivated by sunlight when the sun returns to high latitudes in the spring, leading to ozone depletion in the snowpack and at low altitudes.
Computer models show that air pollution over India could be preventing up to 15 percent of the sunlight from reaching the ground in the springtime, possibly causing temperature drops of up to 2 degrees Celsius.
Preliminary data from the National Climatic Data Center indicate the year 2000 will be one of the six hottest and one of the ten wettest years on record.
Some river pollution spawns body-altering steroids.
New, fruit- and vegetable-based edible packaging could reduce the amount of synthetic wrapping needed to protect food.
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