Remote sensing technology reduces urban air pollution

Cities that adopt roadside emissions sensors to detect high polluting vehicles, together with an enforcement program to inspect and repair these vehicles, could significantly improve urban air quality, new research shows.

UN: Brief gains in air quality in 2020 over COVID lockdowns

The U.N. weather agency says the world—and especially urban areas—experienced a brief, sharp drop in emissions of air pollutants last year amid lockdown measures and related travel restrictions put in place over the coronavirus ...

Rewilding cities: grow back greener, cleaner and healthier

One of the lasting legacies of COVID-19 pandemic, perhaps, is our increased appreciation of open green spaces across towns and cities. Those of us living in bustling cities, have experienced, to various extents, the power ...

COVID-19 lockdowns linked to pollution spikes in some cities

Lockdowns last year in response to COVID-19 resulted in drastic cuts to emissions, especially from vehicle tailpipes, and yet some urban areas saw a paradoxical spike in ozone air pollution. A new study led by the National ...

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