Take, for example, Global Cooling back in the 1970's. That was refuted with Global Warming in the 2000's
It was refuted in the 1970s, not the 200's. It was never a popular theory. No one should doubt Global Warming on the basis that the scientific community switched its stance. It never did: the majority of scientists were saying it was warming all along.
now it's simply Global Climate Change
It has been called "climate change" since before 1988, when the Intergovernmental Panel on Climate Change (IPCC) was formed. Today, people act like the name is some kind of knee-jerk defense against the switch between "global cooling" and "global warming" when in fact, there was no name change at all, nor was there ever a switch.