"If they enforced the provisions of the Clean Air Act on old energy plants, we'd see a significant improvement of air quality in the Northeast, both in ozone and fine particles," Dr. Thurston said.
If they do not enforce these laws in Washington or Colorado, how can they enforce them in Oregon and Wyoming?
If you treat law enforcement officers, who put their lives on the line for your safety every day, like some kind of enemy army to be suspected, derided, and if they should enforce the law against you, to be shot, you are wrong.
Cookson says he does not have a crystal ball but he is clear that his UCI will be careful about passing rules if they cannot enforce them and that his women's commission, who are experts on how the economy of women's cycling works, are telling him that the sport is not yet in a position to pass that rule.
"So I'm not sure if they actually enforce it".
Ultimately, how the church dealt with the Globe's investigation was underwhelming: although promising wholesale changes in managing priests and bringing them to justice, it's not exactly clear if and how they enforced them.
The approved bill included a series of provisions about groundwater which, if they are enforced, will make it difficult to maintain some old paradigms.
But even if they are enforced, there is no a priori reason why the new market incentives and economic structure should be consistent with sustainable growth.
Then there are the rules that the company insists are unbreakable but that sometimes cause more harm than good if they were enforced.
