Anchor: Improving Environmental Performance at Lower Cost Using Market-Based Mechanisms That Create Incentives for  Using the market-based mechanism of a cap-and-trade program, the Clear Skies Initiative will establish national, federally enforceable emissions limits for each pollutant.
Entailed: National emissions limits will be established for each pollutant and it will be federally enforceable.
Contradiction: The Clear Skies initiative scorns improving environmental performance.
Contradiction: A man is on a roller coaster.
Contradiction: I don't know him well. 
Contradiction: the boy was at the rollerskating rink
Contradiction: children are outside