People aren't willing to make individual sacrifices to solve a tragedy of the commons, and with good reason: it doesn't actually solve the problem. This is not

People aren't willing to make individual sacrifices to solve a tragedy of the commons, and with good reason: it doesn't actually solve the problem. This is not specific to CO2, it's part of the definition of tragedy of the commons. People are, however, far more receptive to collective sacrifices, such as a carbon tax, or its more PC name "carbon price". If your lake is being overfished, you can stop fishing all you want, it won't change a thing. You need quotas or a tax. It's a tragedy of the commons and we need to move together on this.