When will we see ‘tailpipes’ on cars as morally wrong? An Earth Day question

Chrome exhaust pipeEconomists call them "externalities." They're the costs of people's actions on other people or communities—though the people taking those actions don't have to pay for those costs, even as they harm others. The emissions from combusting fossil fuels to propel vehicles are clearly a prime example. DON'T MISS: A Brief History Of Smog, Which...