If you add the cost of $100 per ton to the price of the plane ticket, you would see some amount of travel reduction naturally.

What travel reduction we would have would, at that point, pay for the appropriate sequestration.

Honestly, it sounds like we should just require everyone to buy 100% sequestration for their carbon production (priced into the goods and services). Add a phase in over, say 10 years to.

I'd like to see companies actually track how much CO2 goes into the production of their products. Imagine if everything you buy had the equivalent of an EnergyGuide sticker for CO2 emissions used in the production of that thing. It would lead to companies trying to optimise their products to reduce CO2 used in the manufacturing process.

Agree. This should be legislated just as calories are today. You could ratchet up the severity of the legislation slowly; initially you might allow estimates, over time you could start to audit the supply chain etc.

Some items do already expose this information, but it's pretty much all stuff for the eco market.

Though I remember Walkers' crisps doing this ten years back. 80g for a packet of crisps. Or about 3kg CO2 per 1kg crisps. Doesn't include final transportation though.

Yea, that makes sense, then gives you an easy path to charging a tax with revenues going to offsets or sequestration based on the number on the sticker.

The average in the US is about 16.

I agree that the correct solution is to just whack a carbon tax on flights.

It's ideal if people voluntarily reduce - I've committed myself to not flying except in case of family emergency - but ultimately that's not going to solve the problem because it's a tragedy of the commons.