A new study from the National Oceanic and Atmospheric Administration (NOAA) shows an “unexpected and persistent increase” in global emissions of an ozone-depleting chemical even though an international treaty forced production to completely halt by 2010. NOAA scientists suggest that emissions are most likely from new, unreported production from an unidentified source in eastern Asia. […]
The hole in Earth’s ozone layer is the smallest it’s been since 1988, NASA satellite estimates observed. While the ozone hole is still enormous—measuring about 19.6 million square kilometers (7.6 million square miles, or 2.5 times the size of the U.S.) at its annual peak extent this Sept. 11—that’s much smaller compared to the average […]
By David Doniger and Alex Hillbrand This is a big year for the Montreal Protocol—the 30th anniversary of the world’s most successful environmental protection agreement. Every country on Earth is a party to this treaty, which has prevented catastrophic destruction of the ozone layer that protects us from the sun’s dangerous ultraviolet radiation. Phasing out […]
“The majority of people living in Dallas, TX, have never breathed legally clean air, according to the Environmental Protection Agency.” That shocking truth is from Cherelle Blazer, a Dallas resident and environmental scientist. She’s referring to the ground-level ozone (or smog) levels in Dallas. Ground-level ozone robs hundreds of thousands of Americans with asthma and […]
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