I'm in the Climate change is caused by humans camp. But I know I don't know about the whole thing, as with almost most of the people I've talked to (and political talk show hosts and politicians). I'd rather hear what scientists have to say about the matter then some governor tbh.
But screw the earth, be selfish and look as far as the confines of your city, and there is still good reasons to start reducing emitions. Thankfully I haven't been to a city in North America with high pollution levels, but the population needs to be proactive on energy waste.
I've lived for a few months in Karachi. The smell in the air is disgusting, there is so much man made pollution from cars, factories, power plants. Buildings darken because of the smog, your white shirt will get dusty after just a short time wearing it, and the health problems are numerous.
This problem isn't isolated to third world nations. An article recently noted the air pollution in Hong Kong, it became bad enough that a haze seems to appear over the skyline, when a few years ago, this was not an issue.
LA is another example of a city plagued with air pollution.
So while you don't care about climate change, or think it's a naturally occuring phenomenon, at least realise that in the local level, we collectively need to address how to reduce emissions. Cities like Karachi and Hong Kong didn't have this issue 50 years ago, humans can affect their immediate environment that quickly