Hacker News new | past | comments | ask | show | jobs | submit login

Industrial carbon sequestration costs about $150/ton, so that's ~$3,000 to fully eliminate your carbon footprint. Yes, that's substantial, but it's also not like we would have to got to a subsistence farming standard of living in order to stop contributing to climate change.

(Offsets via getting others to stop emitting carbon, like methane capture on farms, are a lot cheaper but harder to be sure of the counterfactual impact.)




Just adding on to this, some math:

The US emits about 11 gigatonnes of CO2 per year. At $150/ton, sequestering it all would cost 1.65 trillion dollars or about 8.25% of GDP.

That's about what we spend on social security and the military combined.

So, it's a lot. But it's possible to imagine doing it.

I kinda wish there was a company with a bunch of sequestration equipment out somewhere that people could just give money to in order to suck out more CO2 from the air. Why doesn't this exist yet?


Er, I screwed that up.

China emits 11 gigatonnes. The US emits ~half that. So more like 800 billion or 4% of GDP. About what we spend on Medicare.

Of course, even if US emissions went to zero, it wouldn't be enough to stop global warming. So there's that.




Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact

Search: