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If you embrace hopelessness and do nothing to make the transition away from fossil fuels, it’s your own life that will be grim as carbon is more heavily taxed and life becomes increasingly unaffordable.

I’m personally quite optimistic, because I’ve already made most of the necessary adjustments, and it wasn’t very hard at all.

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If you embrace logic the trend lines point to an obvious future regardless of optimism or pessimism.

Unfortunately this future is inline with the the pessimistic viewpoint.

It's not about pessimism or optimism in the end. It's about logic. He's right. It's done. Likely the worst case scenario for global warming will play out. We already crossed the permanent threshold.

The trend line to look at is that renewable energy is growing exponentially, while world fossil fuel usage has peaked (and is declining in developed countries).

The next trend line to look at is that without pulling co2 out of atmosphere, just quitting fossil fuels still gets us to 3.2 degrees of warming (this is IPCC modelling). This is climate armageddon. So the growth in renewable energy means nothing if we dont get real good at offseting emissions.

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