60-70% for a politician or political position is high. For believing in reality it's low.

If you asked "Do cigarettes contribute to lung cancer", you'd expect 95%+. Our evidence for climate change is on-par with that, and yet the rich have run a wildly successful campaign to cast doubt on it for years.

If people really appreciated the gravity of it, we would not have trump, a demonstrably anti-climate president who has rolled back green policies and slowed decarbonization, and even ran on it. Apparently spiting the "other side" is more important than our planet's long term habitability.