Instead of a carbon tax, the government should simply treat gas similar to what many governments did before to nuclear. Forbid the construction of new ones, and

Instead of a carbon tax, the government should simply treat gas similar to what many governments did before to nuclear. Forbid the construction of new ones, and let the planned life expectancy of existing plants be final. When they did that to nuclear it worked wonders in getting people to invest. After all, people then knew that there would be vacant spots in the energy market at very predictable dates. Telling a market that in X year there will be Y amount of demand not being fulfilled, and a main competitor gone, and someone will want to fill it. The price will be based on how cheap the non-fossil fueled alternatives can be made when competing against each other.