It hasn't. Among the serious folks who deal with climate change as part of their job, this is still a problem.
NOT ONE scientific organization has retracted their official statements that this is real, and mostly caused by us.
NOT ONE of the vast majority of world leaders who say this is a problem that we must solve has announced a change.
NOT ONE of the courts that has (every time) found in favor of global warming science has announced they're reconsidering.
The temperature records stand solidly, backed by an array of independent evidence that they weren't "faked". Melting Arctic ice, rising sea levels, earlier Springs, species migrations, etc., all attest to that.
The Himalayan glaciers are melting fast, and threatening millions of people with the loss of their water, even if ONE SENTENCE about the date they'll finally disappear was wrong.
The overwhelming weight of the evidence still stands in support of global warming science. The fact that the deniers now rest their case on minor details and unsupported allegations is simply a sign of desperation.
BTW, the reason that the Statue of Liberty didn't dissolve was the passage of the Clean Air Act, which regulated SO2 emissions. The Supreme Court has said it must apply to CO2, also, because global warming is real.
