Climate change denial I think we all agree as human beings, with few exceptions, that it would be nice if the species survived and that our kids and grandkids had a habitable world. We also agree that there's a lot of people in the world, that there will be even more in the future, and that we have finite resources -- metals, oil, gas, etc. Only so much land, so much potable water, so many trees, etc.
Given that simple commonality, we can achieve a lot. We have the solutions, too. They're right there. We don't even have to sacrifice all that much. Public transportation, electric cars, heat pumps, electric lawnmowers, solar panels, less meat consumption, etc. etc. A more sustainable world is possible.
So what is getting in the way? There are no simple answers, but there are a range possibilities which vary in importance and explanatory power.
One is cost. Another is feasibility of scale. A big one is the profit-motive, and the fact that those in power want to keep their power (and status). Another is a failure of vision and values, a kind of nihilism and short-term thinking that's infected the minds of those in power -- both in business and in government. Yet another is the force of habit, the "This is how it's always been done" syndrome. Lastly, and not exhaustively, is the melding of governments with corporations to the point where you cannot distinguish one from the other.
So depending on how we prioritize these obstacles, we can formulate where we want to direct our civic energies. For me, it's the state and local level in the US. Not simply changing my own lifestyle, as has been promulgated by the fossil fuel industry, but building solidarity and community. I include in this, of course, unionizing. Which seems far removed from climate change, but it isn't. If more workers are unionized, they can create a crisis both for the employers and for the politicians. Strong unions are what tilted the scales in the 1930s, and it has that potential to do so again. It's one of the most powerful weapons the majority of Americans (who are wage-workers, blue or white collar; working or middle class) -- the bottom 80 or 90% -- have to truly fight back against the corporate takeover of government. Not simply protesting -- although that's important. Not voting -- although that's important. Not even mobilizing.
But true organization. And that can only happen on the ground at the local level. Our obsession with the national news drama distracts us from this, because there's little we can do about it besides vote every 2-4 years. If that's all we do it's exactly like the "solutions" presented to climate change: change your lightbulbs and recycle. In other words, complete nonsense. All while the rich get richer and the planet continues to burn (and people die of opiates, and kids become increasingly obese, and education is de-funded in favor of privatization, etc etc.).
So that's a rant, but it's worth talking about the entirety of this problem and the solutions that are staring us in the faces.