could global warming effect the strength and number of volcanic eruptions due to warmer softer crust/mantle?

Answer 1

No.

Global warming is a natural temperature cycle that has happened many times before in geologic history. Humans are speeding up the rate of climate change.

Global warming affects only the atmosphere. There is no change in the temperature of the crust and certainly not the mantle, as the specific heat retention of the "solid" earth is millions or billions (or probably more!) of times greater than the atmosphere.

Even if increased atmospheric temperaturecould be transferred to the earth's crust and mantle, we are talking about a change in temperature of maybe 1 or 2°C over one hundred years. To affect the crust/mantle enough to measurably influence volcanic activity would mean changing the temperature of the earth dozens of degrees.

Answer 2

YES and NO. Global warming does not affect volcanic eruptions number at all. What global warming can do is to increases the amount of erosion and to increase the amount of rain in some areas while decreasing the amount of rain in other areas. This increased erosion can trigger some volcanic collapses, and thus have some catastrophic effect in volcanoes that are about to erupt. But Volcanic eruptions number will not be increased, since volcanic eruptions follow regimes dictated by plate tectonics not by shallow processes.

It is important to note that even though large eruptions emits big amounts of CO2 to the atmosphere, large volcanic eruptions will cool the earth, since they block the sun light and fine ash can be put in orbit for years blocking the sun radiation for years.

Answer 3

Actually there has been some recent evidence that volcanic eruptions are seasonal, and it is a well-known geologic fact that many geologic processes are water driven. Water interacting with magma creates more violent volcanic explosions (think Mt St Helens and Krakatoa), and has been thought to trigger earthquakes. the truth is that all of the interactions are not well-known, but the model that is emerging shows a surprising amount of interaction between non-geologic processes (like water cycles, seasons and temperatures) and geologic activity. So the answer is, yes, it appears that climate change may affect mantle activity.

Answer 4

Global warming according to Al Gore's "Convenient Lie" is pure propaganda based on junk science. Surficial temps do not influence whether core processes are active. It would take a surface temp of 1500-2000+ degrees..

You simpletons look for Convenient answers to normal weather. The Earth temperature fluctuates and over 180,000 year cycles.

To some degree yes.. If volcanic activity produces higher levels of C02 temps will flucuate to some degree. During the Permian it is speculated global mean temps rose by 5-10 degrees because of a 1000 square km basaltic flow in Siberia.

Answer 5

Probably, I don't know for sure, but I wouldn't be surprised.
Global Warming has effected many things, such as the number of forest fires and hurricanes, along with this awful heat were having. It wont be long until the glaciers melt, flooding the world, like in the movie "The Day After Tomorrow"

Answer 6

No, and just where in tarnation do people get these crazy ideas?