Anchor: Because states and EPA will have to find some way to significantly reduce NOx and SO2 emissions, it is probable that power generators will be required to reduce their emissions significantly.
Entailed: It'll be necessary for the EPA to find ways of significantly reducing NOx emissions.
Contradiction: SO2 emissions won't have to be reduced at all even though NOx emissions will have to be reduced.
Contradiction: Nothing is standing.
Contradiction: The gate was built upon the ruins of previous ones.
Contradiction: It was a very stressful, unproductive and disappointing year. 
Contradiction: Two ladies with a stroller.