What It Will Take to Fulfill the Promise of Earth Day

Earth Day, a global effort to educate people on growing environmental threats and propel them to action, marks its 55th anniversary today. The day, which its organizers say billions of people across 200 countries celebrate, is also embraced by a host of major corporations and governments across the globe. For many, it’s an opportunity to embrace the day’s alluring symbolism—despite the activities of many participating corporations and government entities often running in deep opposition to environmentalism’s aims. The promise that Earth Day held at its 1970 inception, when climate change...