> Part of it is I want to support promising geoengineering solutions because I don't think reducing emissions will be enough in the future. In particular spreading olivine on beaches also reduces ocean acidity and gives nutrients to the base of the ocean food chain.
We can do both! No need to make a choice. The carbon offsetting schemes in the developing world are currently very cheap because we have all the low hanging fruits available at the moment. When all the very inefficient and easy to replace processes will be replaced, the offsetting schemes will be much more expensive than geoengineering solutions.
> Donating money so that polluting industries can pollute less seems like a bailout to those industries
It's not really how it works (at least not the companies I've looked at). The way it works is you have a more expensive and equivalent way to do things which at the end does release less carbon. It still works in a free market way. For example they engineered cooking stove which are much more efficient but slightly more expensive, they are subsidised by the Co2 offset donations.
