Where Knowledge Rules

Sciences:

Earth Science

Get a Widget for this title

Removal of excessive carbon from the atmosphere

How Do We Restore the Balance of CO2?

The jury is out on the removal of CO2 from the atmosphere. It has to go. But at the same time we cannot completely get rid of atmospheric carbon dioxide; there has to be a balance. I can think of two main methods to remove it, with biological or chemical means.

Biological Remediation of Carbon Dioxide
I recently read a letter to the editor of Chemical and Engineering News that echoes my own thoughts. Why can't plants solve the problem? Plants convert CO2 to glucose with the sun's energy via photosynthesis.

carbon dioxide + water + light energy glucose + oxygen + water

Plants have done so until now, but not all of them will be able to process the amount of CO2 thrown at them by us. Increased levels of CO2 affects plants differently. Plants can be classified into C3 and C4 categories based on how they process carbon (and carbon dioxide). Trees are in class C3, and most major crops are C4. C3 plants continue to photosynthesize under very high concentrations of CO2, whereas C4 plants cannot. CO2 will heavily impact plant selection and survival. "Weaker plants" may not survive large amounts of CO2.

I asked colleagues of mine who are plant specialists about photosynthesis. Their response was that when you increase the photosynthesis of a plant (the carbon cycle) you also affect the other nutrients in the soil. Nitrogen (fertilizer) in the soil is depleted and other cycles are affected. These turbocharged plants will require more fertilizer.

Can photosynthesis be made even more efficient through genetic selection or engineering of crops that have high photosynthetic rates? Crops such as rice are already being supercharged to increase production rates by using genetic engineering of key photosynthesis enzymes to boost photosynthesis.

Ironically, plants have already been looked at as a possibility for increased photosynthesis in order to feed our ever expanding world population. At the same time we will need these "superplants" to consume more CO2 to assist in keeping the carbon cycle in balance. Only time will tell if we can succeed in engineering the enzymes and plants to do this.

Chemical Uses of Carbon Dioxide

In addition to biological means of processing CO2 there are chemical ways. Carbon sequestration, or burying carbon under ground is one way. However there are many chemical reactions that require carbon dioxide. The use of supercritical carbon dioxide is one.

Supercritical carbon dioxide is a physical state where it has behavior that


Below are the top articles rated and ranked by Helium members on:

Removal of excessive carbon from the atmosphere

  • 1 of 8

    by Wanderer

    How Do We Restore the Balance of CO2?

    The jury is out on the removal of CO2 from the atmosphere. It has to go. But at the

    read more

  • 2 of 8

    by Ned Dunkley


    For many hundreds of years now mankind has reaped havoc on this beautiful blue green planet of ours. Europe used to be a

    read more

  • 3 of 8

    by Pieter Venter

    An interesting though of establishing grasslands and forests in the Sahara, I agree that it would remove carbon dioxide

    read more

  • 4 of 8

    by Aldo Bonincontro

    Carbon (C) in our atmosphere is present mainly as CO2 (carbon dioxide), CO (carbon monoxide), tending to become CO2) and

    read more

  • 5 of 8

    by Muyanga Ziba

    According to the Third Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), the global average surface

    read more

View All Articles on:
Removal of excessive carbon from the atmosphere

Add your voice

Know something about Removal of excessive carbon from the atmosphere?
We want to hear your view. Write_penWrite now!

Helium Debate

Cast your vote!

Forest thinning is essential for keeping forests healthy and people safe

Click for your side.

98330

Featured Partner

Americans for Prosperity

Americans for Prosperity (AFP) is committed to educating citizens about economic policy and mobilizing those citizens...more

What is Helium? | Buy Web Content | Contact Us | Privacy | User agreement | DMCA | User Tools | Help | Community | Helium’s Official Blog | Link to Helium

Helium, Inc.
200 Brickstone Square Andover, MA 01810 USA