Britain set itself a legal target of 80% reduction in carbon emissions, and more than 70 countries now have national goals for renewable energy.

Does the remote operator in Nevada remain a legal combatant—in other words, a legitimate enemy target—on the trip after work to Walmart or to a daughter’s soccer match?

Regardless of the motivation, employers need to carefully consider the possible legal implications of adopting policies that target smokers, "said Lessack, the labor and employment law attorney."