...use one's eyes to know that climate change is real. When I was a kid, in the 80's, I normally had my coat, and gloves out by this time in November. Shoot we had at least 1 to 3 inches of snowfall by this time in November. Don't believe me then look here:
https://www.currentresults.com...
Then fast forward to 2016: there is no snow in sight, and it is 72 degrees currently in Overland Park, KS where I am. Don't tell me climate change doesn't exist.
If you don't believe your senses then look at the great barrier reef that is slowly dying due to the water being too warm
http://news.nationalgeographic...
Climate change is real, but IMO there is nothing that we can do about it now. Humanity hasn't invested enough time in developing clean energy, clean transportation, etc. to turn things around. A few people like Elon Musk are trying, but the price point for Teslas are still beyond most peoples reach. Very few people that are in that price point are also Earth conscious / green.