You should really read those links. Seriously dude, just linking something you don't actually understand as some sort of proof just mkas you look foolish.
The first one made it worse:
The law reduces air pollution controls, including those environmental protections of the Clean Air Act, including caps on toxins in the air and budget cuts for enforcement. The Act is opposed by conservationist groups such as the Sierra Club with Henry A. Waxman, a Democratic congressman of California, describing its title as "clear propaganda."
Among other things, the Clear Skies Act:
Allows 42 million more tons of pollution emitted than the EPA proposal.
Weakens the current cap on nitrogen oxide pollution levels from 1.25 million tons to 2.1 million tons, allowing 68% more NOx pollution.
Delays the improvement of sulfur dioxide (SO2) pollution levels compared to the Clean Air Act requirements.
Delays enforcement of smog-and-soot pollution standards until 2015.
By 2018, the Clear Skies Act will supposedly allow 3 million tons more NOx through 2012 and 8 million more by 2020, for SO2, 18 million tons more through 2012 and 34 million tons more through 2020. 58 tons more mercury through 2012 and 163 tons more through 2020 would be released into the environment than what would be allowed by enforcement of the Clean Air Act.
In August 2001, the EPA proposed a version of the Clear Skies Act that contained short timetables and lower emissions caps . It is unknown why this proposal was withdrawn and replaced with the Bush Administration proposal. It is also unclear whether or not the original EPA proposal would have made it out of committee.
The second one--Signed into law by President Lyndon B. Johnson on December 17, 1963
The third one-- Nixon combined existing groups into one, for budget reasons.
However, I would argue the the Pubs of the 60's and 70s are vastly different then the pubs of today. Post religious right control.