How long would it take for lava & magma to melt continents during global warming?

Question

After much research i have no complete time estimate.

Answer 1

An example is Yellowstone, in 1990 the magma was 20 mile down, now 5 miles and push the lake around toward the south end while pushing up the N. end. How does this relate to GW? The CO2 GW can not cause the heat to raise enough to melt the plates. But one big volcano can put us in a nuclear winter for years-without food. We need a plan to start building up grain supplies-ending ethanol as an alternative fuel, for now!

Answer 2

Please don't worry about it. The earth was extremely tropical for some 300 million years before climate fluctuations began. So tropical that turtle, fern and palm fossils are found at the South Pole. If continents didn't melt then, they won't any time soon.

Answer 3

Twice as long as it would take a one legged frog to kick the seeds out of a dill pickle.

Answer 4

Your kidding right?

Lava is quite "hot".

Global warming is not expected to get that hot. Ever. But you would expire at a constant temperature under boiling water, over a thousand degrees less than lava, so perhaps you shouldn't worry about lava so much.

The real issue isn't boiling water either, it's more melting ice. Substantial amounts of water are "locked" in ice. If those "reserves" of fresh water were melted the salinity of the oceans would change, climate patterns would change and more of the earth would flood (it's already over 70% water out there bud).

Nobody knows how much damage will be done. But consider what has happened: much of the West was once under water. I don't think those billions of people getting flooded out would like it.

Answer 5

Never Grasshopper

Answer 6

this is a global warming issue---just guess.

Answer 7

Lava and magma are in the earth's core and only come out in volcanic eruptions.  As the earth's surface is only going to be 10's of degrees warmer for global warming while lava can be 1000's of degrees ,global warming isn't going to make any difference.

Lava and Magma are not presently melting continents and are not expected to in the future.

The earth's core is kept hot because of radioactive decay. The rate of radioactive decay is slowing down . Eventually the earth's core will not be hot any longer. The time scale is billions of years.

We have seen some melting of Antarctica which may be caused by global warming as well as the artic icecap. These are not expected to affect ocean levels because they are already in water,

The melting of Greenland's and other glaciers by global warming will cause a rise in ocean level  because they are supported by land and above sea level.

Answer 8

what do you mean 'melt'? like the rock underneath or the anthroposphere?

Is the lava completely encompassing the continent? and all continents are different, so it would take different amounts of time for each one.

Actually, I dont even think this is possible. Is this for a homework question?