Global warning has been a major concern for climate scientists for a few decades now. However, polling shows public discourse remains divided as to how real it is, what causes it and how to react to it.
Scientific consensus on climate change fans
Those willing to follow the evidence in climate science wherever it leads. Namely, that global warming is real, human-caused and disrupting. That said, there's nothing inherently wrong with all technology and modern life.
Climate Change can be fixed by a Carbon Tax and the Free Market
Regulate industry, impose a carbon tax, then let the free market take flight from there. It will eventually take us to desirable CO2 levels.
Those who think concerns are overplayed and probably motivated by a left-wing agenda. Also those who think the Earth's climate system isn't changing at all (it might even be cooling down). Weather has always been messy and unpredictable anyway.
Climate Change is real but simply natural and cyclical.
Global warming might be real, but there's little we can do to counteract it because it's the product of natural causes.