why can't people realize climate change is all natural and not affected by human action or inaction?

1. People conveniently ignore the prehistoric "snowball earth" climate phenomonan in which the planet was completely frozen.

2. People don't consider that, in order to get from the last ice age to the modern climate, global warming had to occur.

3. People refuse to believe that the earth has been experiencing climatic warming for over 10,000 years (since the end of the last ice age)

stupidity and a willingness to led by the left.

THE LOONY LEFT ARE TOO STUPID TO FIGURE THAT OUT

Because all the change of the last 50 years has been found to be man made.

Probably because your statement is obviously wrong. Here's a little test for you: go to Phoenix in July, find some place with a road next to open desert and to someone's lawn. Take off your shoes and tell us if makes a difference where you stand--on the desert, on the road, or on the lawn. If you do that and say "no difference" then maybe we'll believe you.

You loose me on words like "all". Clearly humans affect the environment in lots of ways. We may not be the driving force in the change but we have an effect.

Because they know science and history.

Because there are a lot of scientists who know a lot more about climate change than Perry does.

Global warming is happening

https://www.quora.com/What-are-the-latest-signs-of...

And we are causing it

https://globalwarmingisreal.com/2011/11/17/infogra...

The ten warmest years in the instrumental record are 2016, 2017, 2015, 2018, 2014, 2010, 2005, 2013, 2009 and 2007.

http://climate.nasa.gov/system/internal_resources/...

I notice that, even though it took 20 years, 1998 has dropped out of the top ten. So much for a pause. Never mind cooling. LOL! :-)

Gee, could it be all the evidence to the contrary?

stupidity and a willingness to led by the left.