https://www.earthmagazine.org/tags/smog/ Recent content in Smog on EARTH Magazine Hugo en-US American Geosciences Institute. All rights reserved. Thu, 05 Jan 2012 06:41:58 -0500 https://www.earthmagazine.org/article/still-haze-what-we-dont-know-about-black-carbon/ Thu, 05 Jan 2012 06:41:58 -0500 https://www.earthmagazine.org/article/still-haze-what-we-dont-know-about-black-carbon/ <p>Black carbon &mdash; fine particles of soot in the atmosphere produced from the burning of fossil fuels or biomass &mdash; has been <a href="http://www.earthmagazine.org/earth/article/383-7da-9-1">known to be a health hazard</a> for decades, a major contributor to <a href="http://www.earthmagazine.org/earth/article/24e-7d9-8-15">the thick hazes of pollution hovering over cities</a> around the world. But over the last decade, scientists have been examining in increasing detail the various ways in which these particles contribute to another hazard: heating up the planet.</p>