I'm surprised by the size of the commit. If $1M is the floor for what a Stripe-sized org is willing to spend, how expensive would a carbon tax actually be? Are there good estimators for my impact as a consumer and how much I need to commit to this? Basically I want to know how much it costs to feel ok about my flights to go skiing.
The highest ClimeWorks plan, if it's trustworthy (can't personally vouch for it) is approx 1 USD per kg CO2 captured, or $1k per ton. That's pretty expensive. But at $100 it starts to look a lot more favourable when compared with a personal footprint - 30 tons emitted would be $3K, perfectly achievable for someone who's talking about flying to go skiing.
The mean emissions of those willing to spend 600 EUR/year to offset their travel are going to be at least an order of magnitude higher. You're better off feeling guilty and reducing your travel by 10% (in terms of personal emissions).
I do admit it's tricky, because if everybody is scared off by the true price tag (my lifetime emissions as an Australian would easily be $500k), the technology will never get a chance to get economy of scale and lower prices. That's really what you're paying for when you sign up for the plan.