What ‘Code Purple’ and Other Air Quality Terms Mean
If you haven’t paid attention to the air quality index until now, you’re probably learning a lot about it rather quickly. Philadelphia and Washington, D.C. are under an air quality…
7 Objects Floating in US Airspace Right Now
Photo: Alessandro Sarasso (Shutterstock) When it comes to unidentified objects encountered by the US military, the most likely culprits are high-altitude balloons. The US government, weather tracking organizations, private companies,…
How to See Rare ‘Night-Shining’ Clouds, Thanks to Climate Change
Photo: Anna Anikina (Shutterstock) The age of the noctilucent cloud is upon us. Night-shining clouds are historically rare, beautiful formations of shimmering ice crystals hanging in the upper atmosphere that…
How to Use Google Maps to Find Fresher Air
Photo: grynold (Shutterstock) The quality of the air around you has a big impact on your quality of life. In addition to the long-term effects on your health, poor air…
All the Ethical (and Ethical Adjacent) Ways to Beat Your Car’s Emissions Test
Photo: damiangretka (Shutterstock) Driving a well-maintained, regularly serviced automobile is the best method of passing an emissions check; but what are ya, some kind of square? Instead, use the tips…