If the U.S. solves only its own energy problem, but the world does not, then everyone still loses. Pollution knows no borders and a sinking ship takes down everyone on board. That is why all countries must do what they can to affect a global transition to all-renewable, clean energy by 2040. That means a coordinated global effort with global scope. That means leadership from the United States, Europe, China, India, and Japan. That means diligent commitment from average citizens around the world, and corporate and national leaders.