Discussion about this post

User's avatar
Alternative Lives R Available's avatar

Thank you for that information. It is as I expected, but had never put numbers to.

Your comment about underground fires reminded me of coal tip fires from my youth in a coal mining area. They would burn for years, often almost invisible unless it rained and the steam could be seen rising. They were impossible to put out.

As I recall, damp coal could self ignite. It could happen in steam ship coal stores, if the coal was loaded wet. Presumably something similar may happen in thawing peat beds.

Have you come across any information or assessments of methane clathrates and their current status underwater? As ocean waters are heating up faster than expected, one might expect that sedimentary coastal shelves may release increasing methane underwater. As I understand it, the quantities are massive, and could further accelerate warming very quickly.

Expand full comment
Greeley Miklashek, MD's avatar

Thanks for that, Richard! However, you focused on the carbon burning and CO2 release issue, and I'm looking at the 144 BTUs of heat energy absorbed by one pound of melting ice, when the net tells me that 6mm of the top layer of permafrost are melting annually and 22% of the land area in the northern hemisphere is covered with permafrost. So that's roughly 140 X 10 to the 6th times 22% or about 30,000,000 sq. mi. of permafrost, with 6mm of ice melting annually. This enormous amount of heat energy absorption is never mentioned and it is the "canary in the coal mine" for global heat imbalance calculations. I'll let the next guy/gal work out the BTUs being absorbed, but I'm guessin' it approaches the amount of heat energy being absorbed by the 321 X 10 to the 6th cubic miles of oceans and just as important, especially when it's gone.

Expand full comment
11 more comments...

No posts