Almost all heavenly bodies that have a stable orbit slowly drifts away from it because of PHYSICS.
There are many factors in orbital mechanics. Recent discoveries of exoplanets have found planets that have drifted very close to their sun (closer than the orbit of Mercury).
We cannot stop climate change that is caused by orbital mechanics but we can stop releasing carbon. The Earth sequestered carbon over billions of years, we have released much of it in 100 years.
Who are "they"? There are millions of scientists. If some scientists fudged the models for their own personal reason (probably to increase funding for their departments) that does not mean climate change is a hoax. There is overwhelming evidence that it is real.
Reducing CO2 emissions, carbon capture, funding for renewable energy, and nuclear energy. If it is ever verified that humans are contributing to climate change, it will be the Left's fault. Leftist environmentalists all but killed nuclear energy.
It does not matter if the priests believe it as long as the followers believe it.
Have you seen Reddit? There were enough believes to steal the election.