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On Volcanic activity and CO2.
www.scientificamerican.com
![www.scientificamerican.com](/forums/proxy.php?image=https%3A%2F%2Fstatic.scientificamerican.com%2Fsciam%2Fcache%2Ffile%2F7350C7DB-B1C7-478C-9E73F74EFACC66B2.jpg&hash=5055c5887c9755fbb3dd48d7baf64f9a&return_error=1)
Are Volcanoes or Humans Harder on the Atmosphere?
Does one major volcanic eruption generate more climate-altering gas than that produced by humans in their entire history?
![www.scientificamerican.com](/forums/proxy.php?image=https%3A%2F%2Fwww.scientificamerican.com%2Fpublic%2Fresources%2Ffavicons%2Ffavicon-196-f10395ba7ecf07756e4b5a82c4795b61.png&hash=f856707c7b21d76281452b462dcb3215&return_error=1)
This argument that human-caused carbon emissions are merely a drop in the bucket compared to greenhouse gases generated by volcanoes has been making its way around the rumor mill for years. And while it may sound plausible, the science just doesn’t back it up.
According to the U.S. Geological Survey (USGS), the world’s volcanoes, both on land and undersea, generate about 200 million tons of carbon dioxide (CO2) annually, while our automotive and industrial activities cause some 24 billion tons of CO2 emissions every year worldwide. Despite the arguments to the contrary, the facts speak for themselves: Greenhouse gas emissions from volcanoes comprise less than one percent of those generated by today’s human endeavors.