On: "Amazonian dark earth" was the work of ancient hum...

[yjftsjthsd-h]

Wait, is that really energy positive including desalination? I thought that was so expensive (both energy and $) that it wasn't particularly practical

[6510 → yjftsjthsd-h]

It could be but doesn't have to be energy positive. You cant put sunlight into oil tankers but you can turn it into crops and make stuff from the crops (like ethanol)

[wirrbel → yjftsjthsd-h]

IIRC there was also a desalination waste problem.

[6510 → wirrbel]

Yeah, lots of interesting research there.

https://news.mit.edu/2023/desalination-system-could-produce-...

https://www.mdpi.com/2073-4441/15/8/1600