Climate change happens naturally. Sometimes it is influenced by humans and animals as ONE of the factors - two cases as proof of animal and human influence on climate:
- Elephants convert forestlands into savannah by eating bark, pulling down trees etc.
- Humans changed the environment and thereby the climate in the range from Iraq to Morroco. Have you ever wondered why Iraq was a font of civilization? Or why the Romans, Greeks and Carthaginians wanted north Africa? These were fertile lands, made agriculturally rich by human intervention (irrigation etc.). But then the goat herding arabs came and didn't maintain these and the millenia old irrigation collapsed
Climate change in today's context is happening -- I know I'm going out on the limb saying that -- but it isn't purely human interaction. There are some effects we have and some things we can do, but veering to either extreme is bad. The envirowackos are neglecting a lot of good things