Ocean animals key to reducing atmospheric CO2?

Reply Tue 9 Jun, 2020 06:13 pm

It is a logical hypothesis that ocean food-chains could capture and store carbon that would lower CO2 levels in surface waves, so that those waves would absorb more CO2 from the atmosphere and transmit it downward to replenish whatever is migrating around in deeper waters.

But would increased rates of CO2 absorption by the oceans compensate for all the capacity missing on land due to all the land-based forests and other ecosystems that have been removed and replaced with human developments?

The problem is that whenever trees and other organisms are removed from land, the energy balance of that land between sunlight and waste-heat shifts toward more heat and less life-energy (i.e. all the cellular activity and growth that is powered by solar energy filtering through ecosystems).

Basically, developed areas function more like deserts than forests in terms of absorbing sunlight and re-emitting it as convection. The convection currents cause wind and evaporation to be stronger than they otherwise would be, and that leads to more H2O-vapor in the atmosphere to blanket heat along with other greenhouse gases, such as CO2.

So from a broader/longer-term perspective, increased oceanic absorption of CO2 wouldn't compensate for the failure of land development activities to preserve trees and ecology at levels of density equal to that which occurs on natural land that hasn't been developed.

So while the oceans may provide some assistance in the struggle to bring down CO2 levels, they shouldn't deter us from the task of re-integrating trees and other carbon-absorbing life-forms into areas developed by humans at levels of density comparable to natural forests.
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mark noble
Reply Fri 12 Jun, 2020 10:23 am
1stly - CO2 Is NOT an issue until it exceeds 450ppm or deceeds 150ppm.

Hasn't been an issue since 'carboniferous' - Won't be one until we is loooong gone.

Now 'AME' IS an issue (Aerosol masking effect).
You'll know about that by 2022 - Which is when - Ouch - Go seek.

Have a Lovely Day
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Reply Fri 12 Jun, 2020 10:40 am
We're rapidly making the oceans inhospitable for animal life. Between warming, plastic waste, over-fishing, acidification (due to increased levels of CO2), and the decreasing levels of dissolved oxygen the oceans are becoming increasingly fragile, affecting life in the sea and on land as well.
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