95% (or is it higher than that now?) of scientists from around the world agree that 1) the global climate is changing (and not for the better for humankind) and 2) humans are contributing significantly to that change. I'll go with the conclusions of such highly experienced and educated scientists over politically driven stooges and beer-guzzling Deplorables sitting in their chairs listening to Rush.

I do fault scientists and world leaders for doing a poor job of educating the global public, especially in the US, about climate change. Our planet is surrounded by a closed and finite atmosphere. Since the start of the industrial revolution, human industries and activities have poured millions of tons of greenhouse gases into that enclosed space. Humans continue to do so. Scientists, give us the math. There's XXX space in our atmosphere. Humans add YYY amount of greenhouse gases each year to this enclosed space. Those gases increase the Earth's temperature. It's pure math/science.