Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Normal
"With the exception of the permian extinction (due to massive volcanic activity on a worldwide scale) the mass extinctions happened as the earth slid into ice ages, not as the world entered into a period of a more temperate climate."Right. And when we look at the geologic record to try to determine why the Permean extinction saw a total of a 10 degree C rise in temperatures instead of a decrease, as one would expect from all the aerosols vocanism produces, we see a massive increase in volcanically produced CO2 emissions. Oops. There goes your argument. See, here's the problem. Flood basalts don't produce a lot of aerosols relative to other eruptions, and certainly don't send vast amounts into the stratosphere, because by comparison with other eruptions, they are fairly tame. They do, however, produce huge volumes of CO2.
"With the exception of the permian extinction (due to massive volcanic activity on a worldwide scale) the mass extinctions happened as the earth slid into ice ages, not as the world entered into a period of a more temperate climate."
Right. And when we look at the geologic record to try to determine why the Permean extinction saw a total of a 10 degree C rise in temperatures instead of a decrease, as one would expect from all the aerosols vocanism produces, we see a massive increase in volcanically produced CO2 emissions. Oops. There goes your argument. See, here's the problem. Flood basalts don't produce a lot of aerosols relative to other eruptions, and certainly don't send vast amounts into the stratosphere, because by comparison with other eruptions, they are fairly tame. They do, however, produce huge volumes of CO2.
