A nice frank start to a new documentary on geoengineering (30min)!
But, I do have a few issues on communication... (THREAD)
abc.net.au/foreign/climat…
![](https://pbs.twimg.com/media/D0ZVJgSXcAAaLm5.jpg)
2/ iopscience.iop.org/article/10.108…
![](https://pbs.twimg.com/media/D0ZXBvaWsAARCNg.jpg)
3/ cicero.oslo.no/no/posts/klima…
CCS: Don't emit as much CO₂ while still using fossil fuels (Fig c)
CDR: Physically remove CO₂ from the atmosphere (Figs c, d, e, f, h))
SRM: Directly manage Earth's energy balance
5/ rdcu.be/boDt7
![](https://pbs.twimg.com/media/D0Zaw3TXgAAeG6W.jpg)
![](https://pbs.twimg.com/media/D0Zd_BdWwAAsDpn.jpg)
![](https://pbs.twimg.com/media/D0ZgU1kX4AAQfGp.jpg)
* Mitigation: cheap (relatively)
* CCS (clean coal): costly
* CDR (via DAC): expensive
* SRM: "too cheap"
They have different costs, as they do different things. That is a key point...
11/
(Overall, good job @ericperipatetic, I am just venting my daily frustrations...). Thanks @dmichie66 for pointing me to the show!
12/
13/13
![](https://pbs.twimg.com/media/D0ZhjsvWsAA0QdD.jpg)