Study: Carbon offsets aren’t doing their job, overstate impact
Study: Carbon offsets aren’t doing their job, overstate impact
Cambridge study says carbon offsets are not nearly as effective as they claim to be.
Cambridge study says carbon offsets are not nearly as effective as they claim to be.
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Instead of offsets, companies should be pursuing direct carbon sequestration like with https://climeworks.com/
No estimates, no accounting magic. Just a direct measure of physical, measurable tons of carbon directly removed from the atmosphere.
Except carbon sequestration is not ever going to work and it's always going to be more expensive than having just burned that fuel in the first place.
Maybe you'll get an advantage if it's nearly free to do and you use exclusively solar power in areas with excesses of it.
But on average? Sequestration is not an answer. The carbon dioxide in our atmosphere is just too rare to effectively pull out, and it's never going to be capable of even reaching fractions of what we're emitting right now.
We have one answer to this problem and one answer only.
Stop. Using. Fossil. Fuels.
Tax carbon.
Start getting ready to do geoengineering, because we are going to need it.
People like to bitch and say that we shouldn't be changing the environment, but guess what, we're changing the environment if we like it or not, it's only a question of it it's in our interests or if it's an uncontrolled self-destructive form.
carbon sequestration is not ever going to work
I don't know what you're talking about, it's a thing that is currently being done. Not some future hypothetical tech.
But yes it is too expensive for now. Costs are coming down hopefully that continues to be the case.
And yes, the best, cheapest, most efficient way to reduce ghg is to eliminate fossil fuels.
It's hilariously expensive and it's expensive because physics. We measure carbon in the atmosphere in parts per million. The entire surface area of the planet is already littered with Caron absorbers and they don't make a dent.
It's never happening
It's just a problem of energy. Which is an entirely solvable problem, from a physics standpoint.
Well sure, the entire global warming crisis is a matter of energy. Almost every problem we have today is a matter of energy.
The problem is, at any given point in time a more productive use of energy then carbon sequestration is going to exist, because it is incredibly difficult to pull carbon out of the atmosphere and it would require a project of herculan scales to make a difference in the global climate.
Imagine it's 10 times as hard to carbon out of the atmosphere as it is to put in.
It has taken the entire world economy decades to get to the point that global warming is moving back a couple of degrees.
To offset that with sequestration you're going to need something the size of the entire global economy, and you're going to need to create that while the only possible input is through government programs and sequestration creates next to zero benefit in terms of profit for the people doing it.
It's going to be hilariously difficult, nearly impossible, and you can't wave that away with "it's an energy problem".
It's only ever going to make sense inside of coal smokestacks.
It's not a physics problem, is all I said
The need for a large amount of energy is a physics problem. You can't undo it through any amount of innovation.
It's a money problem.
The problem with direct air capture is that it only is good if it exclusively uses renewables, and right now it would be much better to instead use that energy to replace fossil fuels. Only excess renewable energy should be used for it, maybe in places like Scotland that have too much wind power. Capture directly from the source is also better as the concentration of carbon is much higher in the output from a smokestack, and as such has more impact and is more energy efficient too