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You don't need to capture anywhere near the total amount emitted into in the atmosphere. Just enough to offset warming.
by allthenews 8y ago
You don't need to capture anywhere near the total amount emitted into in the atmosphere. Just enough to offset warming.
- CapitalistCartr 8y agoThat "just enough" is probably half of what is presently in the atmosphere. The oceans have absorbed huge amounts of what we've emitted, and would disgorge it accordingly. The CO2 level in 1900 was about 300 ppm; now its 400. To make a substantial reversal in climate change by only removing CO2 from the atmosphere, we'd have to make a massive stride by 2050.
- m0llusk 8y agoThe oceans may also end up being a higher priority at least at first because there is already evidence that acidification caused by absorption of excess atmospheric carbon us causing ocean ecosystems to break down while disruption on land is still relatively minor.
- oasisbob 8y agoI'm not sure you can target oceanic CO2 over CO2 in the atmosphere. Ocean acidification is an equilibrium process driven by the partial pressure of CO2 in the atmosphere increasing. If you start reversing acidification, the ocean is just going to start pulling in more CO2 from the atmosphere.
- patrickyeon 8y agoSounds like you should "just" target whichever one is easier (cheaper) to pull CO2 out of, then.
- m0llusk 8y agoIn most cases it is easier and more practical to accelerate reactions in liquid media as opposed to gases. This is chemistry not magic.
- pier25 8y agoThere are a couple of problems here. 1) Nobody really knows how much is that. 350ppm? 300ppm? 250ppm? 2) Don't forget about feedbacks which have already been triggered and will keep adding warming regardless of what humans do.