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Losing Earth: The Decade We Almost Stopped Climate Change

nytimes.com

11–20 of 210 posts

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#11

Why isn't there a billion dollar reward to any person or company that comes up with a cost-effective way to capture carbon from the air and convert back to solid carbon? I'd love to understand the physics (or chemistry? maybe economy?) that prevents this from materialising.

[deleted]

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#12

Great read. It's always interesting to see how individuals (John Sununu, Rush Limbaugh) have the capacity to change the arc of history - against prevailing wisdom and agreed facts. Sure, they had massive support from the oil industry, but Europe also has an oil industry and it didn't change Europe's stance on climate change. For a real-time update on climate change, just look at the canary in the cold-mine - Arctic S…

US emissions of CO2 have fallen much faster than Europe's. Europe likes to talk a lot but not to compromise. So while they could be fracking and displacing dirty energy sources, they instead use oil and coal where the US uses natural gas.

Do you have any sources on that? "Falling much faster" by itself doesn't say much when EU might already be emitting ten times less than the US, for all I know.

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#13

Why isn't there a billion dollar reward to any person or company that comes up with a cost-effective way to capture carbon from the air and convert back to solid carbon? I'd love to understand the physics (or chemistry? maybe economy?) that prevents this from materialising.

We have a solution - reduce carbon/methane emissions. Why bet the bank on a technology that hasn't been invented yet? If you said to somebody with 100 billion dollars: capture as much carbon as you can. What would they do? I would just plant trees for that money. Sure, we need basic research on carbon sequestration, but we need fundamental breakthroughs to make it happen. Time, we don't have.

Why bet the bank on us humans collectively being able to reduce all our emissions? There are problems will all approaches, a quick Google search pokes some holes in why planting trees is not a good idea: https://earthscience.stackexchange.com/questions/2639/how-ma...

So the billion dollar reward would be quite small sum in the grand scheme of things. And for example with a carbon tax, where collectors could offset emitters, it might also become a quite lucrative business.

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#14

Why isn't there a billion dollar reward to any person or company that comes up with a cost-effective way to capture carbon from the air and convert back to solid carbon? I'd love to understand the physics (or chemistry? maybe economy?) that prevents this from materialising.

I'm not a physicist, but isn't the second law of thermodynamics puts a limit on what we can do with the excess energy, most of which are being absorbed by the oceans.

Besides most of the damage is already done.

  EPA: It’s as if you’re sitting in your car, in your garage, with the engine running and the door closed, and you’ve slipped into unconsciousness. And that’s it.

  McAvoy: What if someone comes and opens the door?

  EPA: You’re already dead.

  McAvoy: What if the person got there in time?

  EPA: Then you’d be saved.

  McAvoy: OK. So now what’s the CO2 equivalent of the getting there on time?

  EPA: Shutting off the car 20 years ago.
https://www.youtube.com/watch?v=6CXRaTnKDXA

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#15

Why isn't there a billion dollar reward to any person or company that comes up with a cost-effective way to capture carbon from the air and convert back to solid carbon? I'd love to understand the physics (or chemistry? maybe economy?) that prevents this from materialising.

Physics/Chemistry: Solid carbon (e.g coal) is more energy-dense than CO2 (per molecular weight unit). This is why you can gain energy from burning coal. To go the other way round you need to add this energy back in to break the very stable double-bonds in the CO2 molecule. This energy is what makes it expensive and there is no way around (except finding a really cheap energy source, but then you probably wouldn't burn coal in the first place)

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#16

Why isn't there a billion dollar reward to any person or company that comes up with a cost-effective way to capture carbon from the air and convert back to solid carbon? I'd love to understand the physics (or chemistry? maybe economy?) that prevents this from materialising.

There is a cost-effective way: Planting trees, cutting them down and turning the wood to charcoal. You'd need huge areas dedicated to such forests. You'd also need to "unburn" most of the coal and oil we burned so far. That's a mind-boggling amount of matter we're talking about here.

But who would pay for that? If there were the political will we would long have passed a simple carbon tax that, after some adjustment period, would be tied to the price of unburning a ton of CO2.

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#17

Great read. It's always interesting to see how individuals (John Sununu, Rush Limbaugh) have the capacity to change the arc of history - against prevailing wisdom and agreed facts. Sure, they had massive support from the oil industry, but Europe also has an oil industry and it didn't change Europe's stance on climate change. For a real-time update on climate change, just look at the canary in the cold-mine - Arctic S…

US emissions of CO2 have fallen much faster than Europe's. Europe likes to talk a lot but not to compromise. So while they could be fracking and displacing dirty energy sources, they instead use oil and coal where the US uses natural gas.

That's Foxnews-like nonsense. Here's some facts. A nice visualization of per-capita EU-US Co2 emissions over the last 20 years: https://data.worldbank.org/indicator/EN.ATM.CO2E.PC?location... The US has over double the per-capita emissions of the EU. The EU has a larger economy, by GDP. The US can do a lot more - particularly leadership.

Re: Losing Earth: The Decade We Almost Stopped Climate Change

#20

Great read. It's always interesting to see how individuals (John Sununu, Rush Limbaugh) have the capacity to change the arc of history - against prevailing wisdom and agreed facts. Sure, they had massive support from the oil industry, but Europe also has an oil industry and it didn't change Europe's stance on climate change. For a real-time update on climate change, just look at the canary in the cold-mine - Arctic S…

US emissions of CO2 have fallen much faster than Europe's. Europe likes to talk a lot but not to compromise. So while they could be fracking and displacing dirty energy sources, they instead use oil and coal where the US uses natural gas.

That is correct no country in the world has reduced CO2 emissions like the US did in the past decade, thanks to Shale revolution. Pennsylvania is the world's #3 producer of NG. I mean one state in US.

Even if some people grudge this fact, the Grid is not ready for variable generation that Wind and Solar does, they do buy some time for Grid to become smarter (Grid of MicroGrids) where it can digest Solar and Wind, especially now that viable storage like batteries and fuel cells are coming off age.

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