You do realize that the EPA was brought into existence by the uberRepublican, Richard Nixon, right?
Yes - absolutely. George H.W. Bush's administration got the 1990 extensions to the clean air act passed that were very successful. Environmental protections used to be bipartisan.
Then one party (I'll let you guess which) abandoned any pretense of care for the environment and have actively pushed back against any environmental protections (and not just regarding climate change). That isn't to say under the democrats it has been perfect either. The Flint water crisis was primarily due to Michigan but the Feds (EPA) were asleep at the wheel too.