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A global reforestation project is how we fix climate change

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Re: A global reforestation project is how we fix climate change

#161

Earlier quoted context omitted.

Having your cake and eating it too sounds like a great option. It just doesn’t have any basis in reality.

> It just doesn’t have any basis in reality. So you're effectively denying the possibility? I'd say that's a pretty gargantuan assumption to make.

It’s very, very, very unlikely that we’ll find a magic bullet solution at this stage. Removing co2 from the atmosphere requires some external energy source, for one thing.

Re: A global reforestation project is how we fix climate change

#162
post #70

The core assumption is that 3 billion out of a total of 4.7 billion acres of desert currently existing can be reforested by planting trees and irrigating them for 20 years, after which they will continue growing without irrigation. Is this possible, except for marginal areas bordering the deserts? Aren't most desert areas desert because of very low precipitation? This may be practical for areas such as the example in…

Most areas became desert after deforestation, many times due to earlier civilizations of humanity, many speculate that these were often largely influential in the falls of empires. A good example would be Iraq, when it was still Babylon there were a lot of trees, forests, and marshes there. The deforestation around the mountains eventually caused droughts, which turned it to desert and contributed to the fall of an empire. There is evidence of this with nearly every fallen civilization that wasn't directly caused by war, but even then often the wars happened due to scarcity caused by similar events in neighboring nations.

Re: A global reforestation project is how we fix climate change

#163
post #65

Earlier quoted context omitted.

I've heard this tree grows extremely fast: https://en.wikipedia.org/wiki/Paulownia_tomentosa

There is a lot of marketing and some "scammy" practices put in selling Paulownia trees. Eucaliptus is faster and many coniphers also. You can find photos of trees regrowing light fast after being chopped, and from an old root but this is not how you measure accurately growth in a tree. The tree enters in emergency mode and is using all the reserves in the root to restore the lost canopy ASAP. It will slow down consid…

I'd avoid introducing Eucalypts to places they aren't already prevalent. Fires don't kill them, but do kill a lot of their competition, they drop very flammable leaf and branch litter, have oily explosive sap, so naturally they spread with fires. With more fires the more eucalypts spread, with more eucalypts there are more uncontrollable fires.

A country where Eucalypts are completely dominant is Australia. In the US California is full of them. Both Australia and California have uncontrollable fire problems.

There are plantations of eucalyptus trees in Brazil, either they don't know what introducing them will do to their country or they just don't care.

Before using eucalypts, consider what introducing a very invasive tree that transforms the countryside into something much more flammable than it originally was will do.

Re: A global reforestation project is how we fix climate change

#164
post #20
post #13

Earlier quoted context omitted.

Are there methods of tree farming that are focusing solely on carbon capture? For example, is it known that a species of plant that grows quickly captures carbon very efficiently?

Wouldn't shallow pools of algea in a greenhouse be much more efficient than trees?

In addition to capturing carbon, forests (of native tree species) provide many ecosystem services, including fresh water retention in the land, food and habitat for other species, shading of the ground, etc that a greenhouse full of algae would be challenged to provide. Most of the carbon stored in a forest is subterranean and increases significantly over time.

Re: A global reforestation project is how we fix climate change

#165

Earlier quoted context omitted.

That works under the assumption that we can't do both. We can absolutely work on carbon neutrality and getting the developing world off of coal and oil burning technologies while working on restoring a natural carbon capture system in the form of forests and ecosystems.

I just think the neutrality, reduction in resource use and sustainability has to come first. Otherwise Jevons. Of course there can be intelligent overlap. I would hope that as nations move near to neutrality they must have put effort into a rethink of agriculture and forestry (and every other human activity). Now they can re-plant locally appropriate species and create new forest that will eventually appear to be ent…

This is an all-of-the-above-all-hands-on-deck moment in human history, so I applaud you for focusing on the things you feel are most impactful.

Some of us are also looking beyond the challenges (e.g., coal power) that have known solutions for the most impactful thing we can do to buy more time. Large transportation, electricity, and agricultural infrastructure will take time and lots of political will to change.

Planting trees on unproductive land with desalinated ocean water that no one's fighting over is low-hanging fruit.

Re: A global reforestation project is how we fix climate change

#166
And then all those trees dry out because waterbed can't carry this many, and they catch fire. See California, nearly every year. It's a 100% natural process for them to dry out and catch fire from time to time. It's just not very conducive to permanent carbon capture. The proposed solution (irrigation) is the most pie-in-the-sky part of the plan. It's "solar energy, ???, profit" basically.

I like the scalability aspects of this. I don't think we have a technical solution that is as scalable as a biological one. I do think that simply "planting trees" is not going to do the trick though.

Re: A global reforestation project is how we fix climate change

#167
post #70

The core assumption is that 3 billion out of a total of 4.7 billion acres of desert currently existing can be reforested by planting trees and irrigating them for 20 years, after which they will continue growing without irrigation. Is this possible, except for marginal areas bordering the deserts? Aren't most desert areas desert because of very low precipitation? This may be practical for areas such as the example in…

Maybe theoretically possible if we have exceedingly cheap nuclear power. Fill the coasts with reactors that are optimized not for power generation but for transferring the waste heat to desalination facilities.

Re: A global reforestation project is how we fix climate change

#168
post #70

The core assumption is that 3 billion out of a total of 4.7 billion acres of desert currently existing can be reforested by planting trees and irrigating them for 20 years, after which they will continue growing without irrigation. Is this possible, except for marginal areas bordering the deserts? Aren't most desert areas desert because of very low precipitation? This may be practical for areas such as the example in…

You probably heard before that large forests alter the weather around them. This is no exaggeration. Deserts are locked in a state of infertility because ay rain that falls quickly washes away, taking with it any top soil. So first you big holes to trap water underground, then you let the biomass build up some top soil, then you plant trees. When you have enough trees, they start pulling water from underground into the air, increasing moisture and starting a positive feedback loop. Then you start expanding into the surrounding desert areas. It's a lot of work, but possible, and being done.

Re: A global reforestation project is how we fix climate change

#169

Earlier quoted context omitted.

All of these are "not only but also" solutions. One thing we need to do is end the extraction and burning of fossil fuels, but that only addresses one type of pollution, and it only gets us so far if the alternative doesn't pollute in some way. (For example, solar and the waste that it generates.) We need to solve the whole ecosystem issue.

> We need to solve the whole ecosystem issue. Which unless we come up with some pretty smart measures is inevitably going to involve poorer lifestyles for most in the developed world, in effect (and perhaps this explains the keeness on the left for environmental issues) moving us to a more socialist model, wherein hard work offers far less in terms of monetary reward than at present.

I’ve been thinking about this position today and I don’t see how it makes any sense. Look: would a 10 million dollar salary really induce you to work 10 times harder than a 1 million dollar salary? What about 100 million- would you be working 4000 hours a week instead of 40? You’re going to spend all that money on one person and expect to get your moneys worth? No. Upper executives get that kind of money because they can, not because it makes sense.

Imagine you’re a janitor. Every day the boss drives away in a Maserati and every day you wait for the bus. You’ve been working really hard hoping for a 2 dollars an hour raise, but one day the boss brings you into his office and tells you the money is not there. The following day, you find out that executive bonuses have increased by 20 percent and the company has issued 50 billion dollars in stock buybacks. How does this make you feel about the value of hard work?

Re: A global reforestation project is how we fix climate change

#170
post #70

The core assumption is that 3 billion out of a total of 4.7 billion acres of desert currently existing can be reforested by planting trees and irrigating them for 20 years, after which they will continue growing without irrigation. Is this possible, except for marginal areas bordering the deserts? Aren't most desert areas desert because of very low precipitation? This may be practical for areas such as the example in…

Most areas became desert after deforestation, many times due to earlier civilizations of humanity, many speculate that these were often largely influential in the falls of empires. A good example would be Iraq, when it was still Babylon there were a lot of trees, forests, and marshes there. The deforestation around the mountains eventually caused droughts, which turned it to desert and contributed to the fall of an e…

Any good books or films on this topic?
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