The EPA you remember, which I assume was the one that existed under the prior administration, outlived its usefulness a long time ago. If anything, Pruitt is returning it to its rightful place. EPA has easily been the worst regulation creating office in the US government for some time. It was not that way when it was first created in the early 70's, when real environmental concerns existed and were solved fairly quickly. The EPA's been using junk science for decades to prop up false environmental stories (the ozone hole, AGW) to try and remain relevant.
You're a climate denialist and you're talking junk. I didn't spend thousands of Euros studying climate science only to be told by some random rightwing science denier how the planet works.
I highlight one of your lines in bold to make an example of what an ignorant person you are.