Y'know "science" can never be right or wrong. Because it's never complete. Way back in the 70s scientists started noticing some wonky readings on the recording devices. They got the part right about the climate changing and they got the part right about fossil fuels being the cause of it. But they didn't have enough data yet to predict which way the climate would swing. They've got the data now.
They were right then and they're right now. But there is a lot more to be learned. Nothing they're learning seems to point toward it all being a Chinese hoax though.