Who acts? Who reduced their footprint under 2 Tonnes equivalent CO2 / year? Not many of us, though that's definitely something with many other benefits than environmental
There are many direct air carbon capture technologies under development. Most should cost between $50-200 per ton of CO2 they capture. That translates to $1 to "undo" a gallon of gasoline.
It's worth trying but it's also essential that people pollute less (and not just with CO2, plastic littering, batteries, ..), also note that those air carbon capture companies has received funds from gas companies (https://www.facebook.com/jeanmarc.jancovici/posts/3539457094...)
