Sceince always gets better and changes... like the example of the 1960's, maybe in a couple decades it will be proven or disproven with the advancement of science and technology.
Back then, when scientists were screaming about the coming ice age, they were using cutting edge science.....
You are confusing science with politics and the media. No one was screaming about an ice age. There was some data that showed a cooling trend, but the majority of climate scientists still predicted a warming trend.
And your assumption that they will be wrong and figure out it isn't human activity causing global warming because they might have been wrong about their analysis of data in the 60s is as non-scientific as it gets. Based on your logic, anything we understand today will be proven wrong in the future. That's not very scientific, lol.
What everyone in the scientific community does agree on (well 99.99%) is that CO2 traps heat and that CO2 has been rising because of human activity. Those are the simple facts we know. So just based on an understanding of science you can test in a lab, there will be warming. How much warming or what effect that has on the Earth is the big question. But calling the scientific community wrong without any scientific evidence whatsoever is such a sad way to live life.
Come on now, you are better than that.