SCIENCE IN THE NEWS DAILY
Mending Ozone Hole May Worsen Climate Change
from Scientific American
Decades of chemical pollution have damaged the ozone layer of the upper atmosphere that shields Earth from the harmful effects of the sun's ultraviolet rays, each summer eating a hole over the South Pole that expands to nearly the size of Antarctica.
But since 1996, when an international treaty banned the culprit chemical refrigerants and propellants ... , the size of the seasonal tear has been shrinking - and scientists predict it may stop forming by the end of this century.
You would think that was good news. But atmospheric scientists caution in a new study published in Science that sewing up the rift in the ozone ... layer may exacerbate another environmental woe: climate change.
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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