ozone layer

11.28.09

Spraying Safely

How green are aerosol cans now, with chlorofluorocarbons out of the picture?

By the Editors of E - The Environmental Magazine Posted 09.04.2008 at 10:20 am 0 Comments

Dear EarthTalk: What's the deal nowadays with aerosol spray cans? I thought that the ozone-depleting chemicals used in them were eliminated back in the 1970s. Is this true? If so, what is now used as a propellant? Are aerosols still bad for the ozone layer? -- Sheila, Abilene, TX

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READ MORE ABOUT > aerosols, EarthTalk, enviro science, health, ozone layer, the environment

The Risks of Geoengineering

One proposed fix for the planet's climate problems could create more problems than it solves

By Gregory Mone Posted 04.28.2008 at 12:13 pm 10 Comments

When it comes to climate change, a quick fix won't do. Science published a paper Friday from the National Center for Atmospheric Research (NCAR) which concludes that a proposed plan to inject the atmosphere with sulfate particles in order to cool the planet would actually have dire consequences.

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READ MORE ABOUT > atmosphere, climate change, geoengineering, global warming, Gregory Mone, ncar, ozone layer