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Are there calcs for how much energy these consistent rises take? I know it's basic chemistry so I assume those numbers have been run. Is warming from greenhouse

Are there calcs for how much energy these consistent rises take? I know it's basic chemistry so I assume those numbers have been run. Is warming from greenhouse gasses alone enough to cause, or are there other unknown contributors?

steve_adams_86 3y ago
Albedo of the ocean changing over time can mean significantly more heat is absorbed. An example of this would be a loss of ice reflecting light rather than absorbing it. This won’t account for all of this energy, but it’s an example of one non-gas origin of warming. Evidence of albedo changes impacting arctic ice: https://www.nature.com/articles/s41598-017-08467-z https://www.nature.com/articles/s41598-017-08467-z (I believe there are more studies like this; I’ve read one before, but it wasn’t this one).
- mysterydip 3y ago
  I hadn't considered side effects like that, very interesting. Makes you wonder what else has consequences we haven't realized yet.
  - steve_adams_86 3y ago
    The answer so far has been “a lot”, and I think it’ll continue to be the answer.
- flangola7 3y ago
  Why would the albedo of water change?
  - olddustytrail 3y ago
    Because ice is shinier than dark water.
  - steve_adams_86 3y ago
    The change in albedo is due to ice receding and revealing darker water, which absorbs more energy than ice does. The net effect is more solar energy being held in the ocean and atmosphere. The same thing happens anywhere there is ice. Think of mountain tops revealing dark gray rock which heats to 30 degrees Celsius in summer in a location where there was previously ice. The ice would melt, yet reflect energy and still be cooler than the air, but the rock just radiates heat into the atmosphere (and remaining ice surrounding it).
deleted 3y ago
[deleted]
_ph_ 3y ago
Warming from greenhouse gases is the driver of the warming, but there are multiplies. Most obvious one is water vapour which is a very powerful greenhouse gas. So the warming caused by the raised CO2 enables more water vapour in the air (warmer air can take up more water) which amplifies the greenhouse effect. Then come all the secondary effects like melting of highly reflective ice and others.

steve_adams_86 3y ago

Albedo of the ocean changing over time can mean significantly more heat is absorbed. An example of this would be a loss of ice reflecting light rather than absorbing it. This won’t account for all of this energy, but it’s an example of one non-gas origin of warming. Evidence of albedo changes impacting arctic ice: https://www.nature.com/articles/s41598-017-08467-z https://www.nature.com/articles/s41598-017-08467-z (I believe there are more studies like this; I’ve read one before, but it wasn’t this one).

mysterydip 3y ago
I hadn't considered side effects like that, very interesting. Makes you wonder what else has consequences we haven't realized yet.
- steve_adams_86 3y ago
  The answer so far has been “a lot”, and I think it’ll continue to be the answer.
flangola7 3y ago
Why would the albedo of water change?
- olddustytrail 3y ago
  Because ice is shinier than dark water.
- steve_adams_86 3y ago
  The change in albedo is due to ice receding and revealing darker water, which absorbs more energy than ice does. The net effect is more solar energy being held in the ocean and atmosphere. The same thing happens anywhere there is ice. Think of mountain tops revealing dark gray rock which heats to 30 degrees Celsius in summer in a location where there was previously ice. The ice would melt, yet reflect energy and still be cooler than the air, but the rock just radiates heat into the atmosphere (and remaining ice surrounding it).

deleted 3y ago

[deleted]

_ph_ 3y ago

Warming from greenhouse gases is the driver of the warming, but there are multiplies. Most obvious one is water vapour which is a very powerful greenhouse gas. So the warming caused by the raised CO2 enables more water vapour in the air (warmer air can take up more water) which amplifies the greenhouse effect. Then come all the secondary effects like melting of highly reflective ice and others.