Ask HN: Is genetically modified trees to capture CO2 possible?
1–10 of 12 posts
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#2You can cut the branches off willows and have new branches come off the roots quickly, this is called ‘coppicing’ and is used in bioenergy. Beavers do it too.
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#3So you are on the right track, but may want to do some research get a good sense of what the status quo is, and then seek ways to improve. (And there are definitely ways it can be improved - not everyone is sustainable, not all woodland owners harvest at all, and even the folks who are sustainably harvesting wood could increase production with coppicing or other techniques.)
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#4Figuring out how to make Bamboo grow in more places, and grow faster from seed might be a great way to do this.
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#5They tried making lignin free trees but they get shredded by bugs. You can cut the branches off willows and have new branches come off the roots quickly, this is called ‘coppicing’ and is used in bioenergy. Beavers do it too.
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#6I don't think it's crazy at all. In fact, I had a very similar idea a while back. Genetically engineer plants of some sort to grow faster and absorb more co2? Sure, why not.
> What I am missing?
Good question. I'm a complete n00b when it comes to synthetic biologic / genetic engineering / etc. I know just enough to be dangerous, so to speak.
I did have a conversation about this with a friend who is more knowledgeable about syn-bio / genetics than I am (although not really an "expert" as far as I know) and he was somewhat dismissive of the idea, although I'm not sure I fully understood his reason why. He seemed to be appealing to an idea that "trees have been evolving for billions of years, how likely is it that we'd be able to optimize them in any way?" My counter argument was that trees didn't evolve for any specific agenda like "maximize co2 absorption" (other than "survive") and there's no reason to think that we couldn't engineer them to optimize for something like "maximize co2 absorption". I don't remember exactly what his counter to that was, but I think we ended up not really agreeing about the whole thing. That said, he is definitely more knowledgeable than I am in this overall area, so take that for what it's worth.
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#7They tried making lignin free trees but they get shredded by bugs. You can cut the branches off willows and have new branches come off the roots quickly, this is called ‘coppicing’ and is used in bioenergy. Beavers do it too.
"Business plan" patent there involving tree plantations and herds of beavers on treadmills to generate power. Add a bit more horseshit and its a billion dollar IPO, at least.
Could you just collect the beavershit instead?
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#8Earlier quoted context omitted.
"Business plan" patent there involving tree plantations and herds of beavers on treadmills to generate power. Add a bit more horseshit and its a billion dollar IPO, at least.
> Add a bit more horseshit Could you just collect the beavershit instead?
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#9"C4 rice research, currently in its early phases, hopes to develop a new type of rice with improved photosynthesis capacity, known as C4. There are classes of plants known as “C3” and “C4” – referring to how they convert light energy into sugar or photosynthesize. Rice has a C3 photosynthetic pathway. C3 photosynthesis is inefficient at converting inputs to grain, as opposed to the C4 pathway, in which resources are processed more efficiently and converted into higher grain production." [1]
In C3 plants, the carbon dioxide fixation takes place only at one place. In C4 plants, the carbon dioxide fixation takes places twice (one in mesophyll cells, second in bundle sheath cells). C3 plants possess only one CO2 acceptor. C4 plants possess two CO2 acceptors (primary acceptor and secondary acceptor).[2]
[1] https://www.irri.org/news-and-events/news/rice-future-gets-f...
[2] https://www.easybiologyclass.com/similarities-and-difference...).
Re: Ask HN: Is genetically modified trees to capture CO2 possible?
#10Earlier quoted context omitted.
"Business plan" patent there involving tree plantations and herds of beavers on treadmills to generate power. Add a bit more horseshit and its a billion dollar IPO, at least.
> Add a bit more horseshit Could you just collect the beavershit instead?
I would go swimming in a pond that was full of what I call "freshwater seaweed" and I got a permit to stock it with Triploid Grass Carp that would eat it.
The next summer I tried to go swimming there and 𝐁𝐋𝐀𝐌! I got out of the pond and saw a beaver swimming around in circles and realized he'd hit his tail to warn me away. Then I noticed that the pond was full of beaver turds and remembered that that's the way you get
https://www.cdc.gov/parasites/giardia/index.html
so I haven't swum in that pond since.
I've had beavers living in the wet meadow on my farm for years and we always have somebody taking the dams apart so the driveway doesn't get flooded. It's not a terrible chore if you never let the water level get high near the driveway -- if you do they get a lot more productive and it's a lot more work.