Climate change is a real phenomenon that has been shown repeatedly, scientifically and mathematically, to be caused primarily by human activity. It's really not really a debate except on the fringes where uneducated people think they can opine hard enough to overcome mountains of actual evidence.
That said, I'm personally in favor of carbon taxes and a forced march to clean and renewable energy for reasons that would still be valid even if climate change weren't real. Political and economic power derive from control of resources, and the most important resource in the modern global economy is energy. Decentralized energy generation using renewable resources disrupts the monopoly of existing power structures. Those powers do anything that crosses their mind in order to sabotage any attempt to disrupt that monopoly, which is ethically bad, but more importantly, their activities induce widespread cultural conservatism by fostering popular thinking that new ideas are dangerous or unsound simply because they are new. That leaves human civilization in a really bad position with respect to adaptability and progress of all kinds. We should have solved all kinds of problems by now that are portrayed as "unsolvable" just because solving them doesn't make anyone rich. Capitalism may have been necessary for the Industrial Revolution, but post-Information-Revolution, it's holding us back so much that the survival of the species is at risk.
So regardless of global warming/climate change, we should be forcing the issue of clean energy because we have to undermine and ultimately disassemble all scarcity-based economic systems.