glockmail
VIP Member
- Banned
- #61
Plant growth is CO2 sequestration. Some schemes target algae directly. I don't think sequestration is money down the hole.
There are four basically different plans to sequester CO2. Pump it into the earth, Pump it into a very cold submarine environment (essentially stimulate methane clathrate formation) Stimulate algae growth, and I forget the fourth.
You can't rely entirely on terrestrial plants to absorb the CO2 though. Annual plants only remove the CO2 for a season, and we are deforesting. Reforestation (to the extent that it is underway) is a good thing. Nevertheless, the increase in CO2 over the past 100+ years can be traced to carbon that had been essentially permanently sunk (250 million year old fossil carbon). The equilibrium has to shift when you do this, and I don't see mathematically how you can sequester the excess CO2 into plants (entirely) particularly given our conversion of forests to croplands (long term sink --> short term sink).
It's nice to see that people here are familiar with this stuff!!
Most plant activity occurs in the oceans, babe.