The cost of pulling a tonne of CO2 out of the atmosphere now ranges between $94 and $232. (Humans emit 35 billion tonnes per year.) Governments could afford to pay $100 per tonne by adding a tax of $0.22 cents per liter of gasoline. It's getting viable.My note: at $100/ tonne that works out at 3.5% of world GDP (PPP), to suck out *all* the world's current annual emissions of CO2. In other words, doable.
Cost of carbon capture has reduced from $600/ tonne in 2011.
The link
