In the 1980s, scientists were sounding the alarm about ozone depletion. Just as today, there were skeptics claiming that the problem was not real. Thankfully, President Ronald Reagan ignored those skeptics -- some of whom were in his own administration. He acted on the science, which was far less solid than current knowledge about climate change, and pushed through the Montreal Protocol treaty, which began to phase out ozone-depleting chemicals.
…Reagan understood that to be a true conservative, you also have to be a good steward -- a fact that those who claim to be emulating him today seem to have forgotten.