On climate change:

* I believe it is happening, based on satellite temperature measurements.

* I believe CO2 is increasing very predictably based on atmospheric measurements.

* I don't believe anybody doing those measurements is intentionally deceiving the world. I'm just not that much of a conspiracy theorist.

* I believe these changes are anthropogenic (human caused)

but

* I think most models and predictions are pretty suss.

* I think selection bias is endemic: in journals selecting papers, in governments selecting who to fund, etc. An extreme bias rejecting "deniers" yields a certain and unscientific (potentially untrue) outcome.

and

* I don't think it's important to stop these changes in the near term

* I think climate change is a net-win currently as Canada, Greenland, northern Russia and maybe even Antarctica are mostly unusable currently; there are far more uninhabitable places due to too-cold than too-warm; far more people die each year because of being too-cold vs too-warm.

* Species will die, but I don't care. Life continues to evolve. There will be new species.

* People will move. But much moreso in the short term, people will adapt.

yet

* Eventually we will have to convert away from fossil fuels that put CO2 into the atmosphere because it is very hard to draw it back down in sufficient quantity.

* We need fossil fuels now in order to innovate the technology needed to not use fossil fuels. We have no hope of doing it on bamboo bicycles.