Yes, we can curtail our carbon emissions ... by raising the cost of polluting activities, like driving, heating our homes, and manufacturing things.
Yes, we can make Social Security solvent for the long run ... by cutting benefits, raising the retirement age or increasing the payroll tax.
Yes, we can simplify the tax code ... by cutting "loopholes" that many of us benefit from, such as the home mortgage interest deduction.
But how do we treat politicians who embrace ideas like creating a carbon tax, raising the retirement age for Social Security or limiting the home mortgage interest deduction? Not well.