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Test of Planet-Cooling Scheme Could Start in 2022

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Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather? about 0.6 °C.

Ozone 119
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Study finds that cities with highly contiguous built-up areas have on average lower NO2 concentrations

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It is also a precursor to the formation of ground-level ozone and particulate matter, and as a cause of acid rain. Overall our findings suggest that policies encouraging contiguous rather than isolated development may be an effective part of urban design strategies seeking to minimize NO 2 air pollution. —Bechle et al.

Pollution 225
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Climate Expert: Don't Call It Geoengineering

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But it's also a way of indicating that there is hope and possibility in navigating the dangerous part of the climate change situation. We've also focused on the parts of the portfolio where there are fewer people and fewer investments that are moving things forward. Wanser: It's partly a play on words. How would it be implemented?

Climate 144
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Study finds paved surfaces in Houston worsen air quality

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The article is in press in the Journal of Geophysical Research-Atmospheres , a publication of the American Geophysical Union. Houston, with a mix of petrochemical facilities, sprawling suburbs, and traffic jams that stretch for miles, has some of the highest levels of ground-level ozone and other air pollutants in the United States.

Houston 247
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COVID-19 Forced Us All to Experiment. What Have We Learned?

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John Snow's 1854 Broad Street map of cholera contagion in London was not only instrumental in identifying lessons learned—the most important being that cholera was transmitted via the water supply—but also in improving policymaking during the crisis. Remote working has become the new status quo in many sectors.

Chad 98