"We have failed to shift the narrative and we are still caught up in the same legal, economic and political systems," said David Suzuki in an exclusive interview with iPolitics. "For me, what we've got to do now is hunker down."
Just to back up what your saying MIT have a nice explainer on carbon lifetimes[0].
I don’t know if I feel as doomed as you though. There is a lot of technology to reduce carbon (renewables etc). And moreover, a lot of the carbon use today is completely unecessary consumerism.
We’ve had 30 years of political inertia since Regan/Thatcher/etc so political change seems impossible to a lot of folks. Historically that’s just not the case. Before then, voter rights, civil rights, women’s rights all made huge political changes. If there’s any silver lining to the horror show of US politics at the moment, it should be that there is at least proof that massive structural change is possible in today’s political climate, and I genuinely believe that can be harnessed for good.
I don’t think there’s any guarantees, but it’s still a lot too early to give up.
There is a lot of technology to reduce carbon (renewables etc).
You’re only talking about reducing the rate of increases. That’s irrelevant. Carbon would still be growing, not shrinking.
As I stated, we need a way to decrease the existing carbon, which is a different, much larger problem, with no technology and nothing waiting in the wings. We have no ideas. Renewable or rebuildable power systems could be useful, but how does that power suck fossil carbon out of the biosphere, what’s the tech for that?
how does that power suck fossil carbon out of the biosphere, what’s the tech for that?
Does it have to be tech? Ocean plankton, peat bogs, forests, etc all do a great job of removing and storing carbon. They’re being destroyed currently, but we could choose to bolster them instead.
According to the science, the ocean current changes are going to start driving climate change via a doubling of present day CO2. When the permafrost melts it will create as much additional CO2 as all human industry does on a repeating annual basis right now. This is an all natural process where CO2 pollution will snowball faster and faster with no human ability to adjust it.
so, do you think natural processes like growing trees have the potential where they going to erase that much feedback? Keeping in mind that the peat bogs, forests and ocean plankton we have today in a less damaged ecosystem ALREADY failed to curtail a much smaller human created CO2 pulse?
Hmm?
What you’re talking about is BECCS, by the way. Believe me or don’t, but the UN climate change panel already included this in all the accounting! Like, what the projections for the future say is that we are going to invent these technologies and deploy them and erase the CO2, and that’s assumed to be real and already factored into all the future projections…and they are still talking about 8 degrees of warming even including that. Notwithstanding that we have never done this yet and don’t know if it works.
You’re arguing like current climate models predict 8 degrees warming, but my understanding is that a worst case scenario is 4 degrees- the best reference I can find is UN climate summit comparisons[0].
Do you have any references of stuff predicting 8 degrees or is it your personal prediction? If it’s the second, I don’t really have the knowledge to debate current climate models. If it’s the first link me some stuff!
My understanding (based on reading around and nothing else, I’m not a climate scientist) is we’re at 2 degrees already, 3 degrees is likely and 4 degrees would be close enough to catastrophic that talking about 5 degrees isn’t worthwhile. There’s still margin for human society to stop the worst of outcomes.
The closest thing I’ve heard of is sulfur dioxide injection, which could apparently reduce greenhouse effects. However, if we implemented this and ever stopped doing it before decreasing the current levels of carbon, it could result in more rapid heating, which would be more damaging to wildlife due to the greater speed with which survivors would have to migrate.
Just to back up what your saying MIT have a nice explainer on carbon lifetimes[0].
I don’t know if I feel as doomed as you though. There is a lot of technology to reduce carbon (renewables etc). And moreover, a lot of the carbon use today is completely unecessary consumerism.
We’ve had 30 years of political inertia since Regan/Thatcher/etc so political change seems impossible to a lot of folks. Historically that’s just not the case. Before then, voter rights, civil rights, women’s rights all made huge political changes. If there’s any silver lining to the horror show of US politics at the moment, it should be that there is at least proof that massive structural change is possible in today’s political climate, and I genuinely believe that can be harnessed for good.
I don’t think there’s any guarantees, but it’s still a lot too early to give up.
[0] https://climate.mit.edu/ask-mit/how-do-we-know-how-long-carbon-dioxide-remains-atmosphere
You’re only talking about reducing the rate of increases. That’s irrelevant. Carbon would still be growing, not shrinking.
As I stated, we need a way to decrease the existing carbon, which is a different, much larger problem, with no technology and nothing waiting in the wings. We have no ideas. Renewable or rebuildable power systems could be useful, but how does that power suck fossil carbon out of the biosphere, what’s the tech for that?
Does it have to be tech? Ocean plankton, peat bogs, forests, etc all do a great job of removing and storing carbon. They’re being destroyed currently, but we could choose to bolster them instead.
Those are also technologies, just not high tech.
Here is a question then:
According to the science, the ocean current changes are going to start driving climate change via a doubling of present day CO2. When the permafrost melts it will create as much additional CO2 as all human industry does on a repeating annual basis right now. This is an all natural process where CO2 pollution will snowball faster and faster with no human ability to adjust it.
so, do you think natural processes like growing trees have the potential where they going to erase that much feedback? Keeping in mind that the peat bogs, forests and ocean plankton we have today in a less damaged ecosystem ALREADY failed to curtail a much smaller human created CO2 pulse?
Hmm?
What you’re talking about is BECCS, by the way. Believe me or don’t, but the UN climate change panel already included this in all the accounting! Like, what the projections for the future say is that we are going to invent these technologies and deploy them and erase the CO2, and that’s assumed to be real and already factored into all the future projections…and they are still talking about 8 degrees of warming even including that. Notwithstanding that we have never done this yet and don’t know if it works.
I guess maybe I’m missing something?
You’re arguing like current climate models predict 8 degrees warming, but my understanding is that a worst case scenario is 4 degrees- the best reference I can find is UN climate summit comparisons[0].
Do you have any references of stuff predicting 8 degrees or is it your personal prediction? If it’s the second, I don’t really have the knowledge to debate current climate models. If it’s the first link me some stuff!
My understanding (based on reading around and nothing else, I’m not a climate scientist) is we’re at 2 degrees already, 3 degrees is likely and 4 degrees would be close enough to catastrophic that talking about 5 degrees isn’t worthwhile. There’s still margin for human society to stop the worst of outcomes.
[0]https://unclimatesummit.org/comparing-climate-impacts-at-1-5c-2c-3c-and-4c/
The closest thing I’ve heard of is sulfur dioxide injection, which could apparently reduce greenhouse effects. However, if we implemented this and ever stopped doing it before decreasing the current levels of carbon, it could result in more rapid heating, which would be more damaging to wildlife due to the greater speed with which survivors would have to migrate.
That’s geoengineering to reduce the strength of sunlight to get heat down. It has to be repeated indefinitely, forever, or heat increases again.
Also, it doesn’t reverse what’s causing climate change by removing carbon.