https://cdn.ilsr.org/wp-content/uploads/2020/09/report-ESRS-2020-ilsr.pdf
Basically we combine offshore and onshore wind, solar, and other stuff where its possible.
https://cdn.ilsr.org/wp-content/uploads/2020/09/report-ESRS-2020-ilsr.pdf
Basically we combine offshore and onshore wind, solar, and other stuff where its possible.
With point of no return I personally mean a runaway greenhouse effect, at which even a total cut in CO2 emissions would not be enough to halt the positive feedback loop.
Technically, even then we could use technology to slightly reduce the amount of sunlight the earth receives to try and counteract the warming, but you know, we went from some mild and slow reforms 40 years ago, to pretty substantial measures 20 years ago, to measures never achieved before in human history today, right towards "just some little global scale sci-fi geo engineering" in a decade or two...
Nah I don't really mean any idealistic hopes of technology saving us, moreso saying that as we pass the tipping points in a chaotic system that has only been observed at near equilibrium, our predictive capabilities for human habitability get less detailed and more speculative. Regardless of whether as a species we are doomed already, we will be even more doomed if we do not take a stand as one whole humanity and overthrow the systems that brought us here. We don't have any more time, we don't have another two decades to gather strength in the movement.