Shipping? Shipping is about 2 % of global CO~2~ emissions.

Large ships emit a lot of sulphur oxides (SO~x~). E.g. cruise ships emit more than all cars of Europe. SO~x~ is not a greenhouse gas, but it’s a nasty pollutant nonetheless.

They emit a lot, but they transport … a very lot. Trucks are higher emitters per comodity.

Still both should be powered by something else like hydrogen (more interesting for ships I guess) or batteries…

Based on what a reasonable carbon price should be, I don’t think you would need to tax them to oblivion. They would just need to pay their fair share.

This website suggests that it is about 0.4 tonne of CO2 per passenger per day. Canada’s current carbon tax is $65 per tonne. So a 7 day cruise would be $182 per passenger in carbon pricing. This is just ballpark and yes you can argue that carbon prices should be higher.

We are quickly arriving at an unpayable bill.

For whom though? I think if your product is going to be very expensive because of that you,ll try to find ways (less carbon emissive) to make it cheaper, and for others, who have low emissions already, they get an advantage. Also rich people generally emit much more carbon than poor people.

I’m a little bit tired of the argument, that everything gets expensive, like the money just goes to nirvana, it’s a tax and a tax should steer industries (mostly) to do the right thing (in this case emit less CO2). The money can go directly to people e.g. in the form of a universal basic income.

For the ability to produce enough food. It’s not the tax that’s the issue it’s that the climate will make industrial food production unviable. We will rapidly exit the conditions that underpin the viability of the modern economy. The only work of value will be making food and related tools in a volatile climatic environment. The bill will not be payable in money, is my point. That is, a tax will be woefully inadequate.

Certainly, it will be really “interesting” how to produce food for ~10 billion people in this uncertain future. But if we finally learn to accept that e.g. cattle isn’t the way forward, I think it may be possible with plant-based food. Although something like vertical farming etc. is definitely not viable today, it may be in the future. And at least currently it’s totally possible to sustainably produce enough (plant-based) food. I think we’ll learn to adapt, that much I trust in agricultural-technological advancement etc. But it will be “meaty” for most people and conflicts will arise (as they already are, see e.g. the conflict in Sudan that is indirectly related to climate change already, similarly as Syria previously (there were quite a few droughts the years before))

The odds that the adaption is rapid and doesn’t cause extreme changes in the daily conditions of everyone are vanishing.