If you’re unsure about climate change and would actually like to know more about the science behind it, I would recommend the book “Six Degrees”. The author goes into detail about the scientific processes at work — in layman’s terms — and what our world is predicted to look like at each one degree increase. He cites esteemed and peer-reviewed sources.
Find it in your local library for free or buy it used on Amazon for cheap. Definitely a good read and one that can make you better informed on this critical issue. I read it several years ago and stumbled upon it again when updating my Goodreads profile (feel free to friend me here).