To the extent effects such as these represent categories of benefits that are truly valuable to the U.S. population, we have underestimated the total benefits of the Clear Skies Act.
The Clear Skies Act greatly reduced the level of the county's CO2 emissions.
mnli hypothesis: The Clear Skies Act greatly reduced the level of the county's CO2 emissions. premise: To the extent effects such as these represent categories of benefits that are truly valuable to the U.S. population, we have underestimated the total benefits of the Clear Skies Act.