The reason Boehner et al. can get away with what they do wrt climate change is because change in the climate is quite slow compared to the human decision making horizon.

Few people think of next year, much fewer of next decade, and frankly nobody plans, personally, for what is going to happen next century.

This is why, if you insist on using the term, I’m a “doomer” about dealing with climate change. The challenge is so far outside our demonstrated ability/willingness to act that the best that will happen is that certain locales around the world might prepare themselves to deal better with change than others, but that is purely a relative evaluation.