Imagery from NASA's Aura satellite shows that over the past 10 years, air quality in the U.S. has improved. That's not to say that the environment isn't still generally screwed, but that's great news, especially if you live in or near a city.
The satellite, which has spent the past decade in orbit, shows a clear reduction in nitrogen dioxide in U.S. cities. Nitrogen dioxide is a toxic yellow-brown gas pollutant that can give you respiratory problems. EPA says 142 million Americans live in places with unhealthy levels of pollution. NASA will continue to monitor the ozone and provide air quality forecasts and important environmental data. In any case, we can't argue with an improvement, even if we're probably doomed anyway.
The satellite, which has spent the past decade in orbit, shows a clear reduction in nitrogen dioxide in U.S. cities. Nitrogen dioxide is a toxic yellow-brown gas pollutant that can give you respiratory problems. EPA says 142 million Americans live in places with unhealthy levels of pollution. NASA will continue to monitor the ozone and provide air quality forecasts and important environmental data. In any case, we can't argue with an improvement, even if we're probably doomed anyway.