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CO2 Researchers Are Now Hacking Photosynthesis (chicagotribune.com)

Remember that story about the "artificial leaf" solar cells? Long-time Slashdot reader managerialslime quotes the Chicago Tribune: University of Illinois at Chicago researchers have developed a way to mimic plants' ability to convert carbon dioxide into fuel, a way to decrease the amounts of harmful gas in the atmosphere and produce clean energy. The artificial leaf essentially recycles carbon dioxide. And it's powered entirely by the sun, mimicking the real photosynthesis process.
But meanwhile, in Germany: Biochemists led by Tobias Erb at the Max Planck Institute for Terrestrial Microbiology...have developed a new, super-efficient method for living organisms to suck CO2 out of the atmosphere. Plants, algae, and other organisms turn CO2 into fuel. Erb and his colleagues reengineered this process, making it about 25 percent more energy efficient and potentially up to two or three times faster... Erb hopes that one day the CETCH cycle could be genetically engineered into living organisms, helping them more rapidly reduce atmospheric CO2 while producing useful materials.
The researchers created their new CO2-transforming cycle using 11 carefully chosen enzymes.

5 of 119 comments (clear)

  1. "Super-Efficient"? by BlueStrat · · Score: 1, Insightful

    ....have developed a new, super-efficient method for living organisms to suck CO2 out of the atmosphere.

    Yeah, let's genetically engineer plants and microbes to be unnaturally efficient in removing atmospheric CO2. It's not like the biosphere has spent millions of years achieving a balance or that the balance is important.

    "What could possibly go wrong?"

    This could be a plot for a sci-fi novel or movie. One of those that predict a not-happy outcome for humans due to their own shortsightedness and hubris.

    Strat

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    1. Re:"Super-Efficient"? by jiriw · · Score: 5, Insightful

      Well, 'we' are already working on a not-happy outcome for 'us' due to 'our' own shortsightedness and hubris. Be glad there are still people willing to look into (even if they are radical) solutions to reverse this shit, instead of moaning about some imaginary economic doom scenario if they were ordered to actually move their asses for once.
      There are already a lot of things making perfect sense (also economically) to do to reduce more damage. But often they aren't done because of established order and general inactivity and who-gives-a-shitness. Well, I do.

    2. Re: "Super-Efficient"? by jxander · · Score: 5, Insightful

      Of course nature has a feedback method to automatically correct the damage we do: extinction (or a major culling at least)

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      This signature is false.
  2. Question by Solandri · · Score: 2, Insightful

    Instead of bio-engineering an organism which collects sunlight and uses it to extract CO2 from the atmosphere, why don't we just plant more trees?

    I understand that you're upset that we're not doing more about CO2 emissions. But you have to understand that we're directly in control of those CO2 emissions. If we wanted to, we could stop all our CO2 emissions tomorrow. The problem isn't the capability, it's the desire. We already have the capability, we just lack the desire.

    Releasing a self-replicating bio-engineered organism which extracts CO2 from the atmosphere is an order of magnitude more reckless than wantonly emitting CO2 to generate energy. Because once you release a self-replicating organism, you no longer have any control over it. If it turns out our calculations and predictions are wrong about the effects of reducing our CO2 emissions, we can modify our behavior in response because we control our CO2 emissions. But once you release that organism, that's it. It's out of our control. If our calculations were wrong about what the steady state response of the ecosystem will be to the introduction of that organism, we won't be able to stop it even if we desire to do so.

    At least with trees, you have an organism which has been around for millions of years so its steady state effect on the ecosystem is pretty well understood.

    1. Re:Question by Anonymous Coward · · Score: 5, Insightful

      Ending deforestation tomorrow and planting trees until every square inch of arable soil is covered won't make a dent in the 100 or so gigatons of extra CO2 in the atmosphere from human activities. We should still do it, but don't expect it to fix the problem. The weight of all *biomass* combined on the planet is only something like 400 gigatons. We've really burned a lot of coal and oil, people need to understand this.