Why are some people denying global warming?give me some reasons.?

I think they don't completely understand it. Also it is easier to deny it so you don't have to do anything about it. Lots of people are afraid of change, or they don't want to take any responsibility. While most people are calling the phenomena global warming, a better term is climate change, because we are getting hotter summers and colder winters (the weather is pretty much all over the place).