Alex Epstein

OPINION: Climate change campaigners often vilify fossil fuels, but they are the energy that powers most of what we do.

Every Memorial Day, we pay tribute to the American men and women who have died in combat. With speeches and solemn ceremonies, we recognize their courage and valor. But one fact goes unacknowledged in our Memorial Day tributes: All too many of our soldiers have died unnecessarily -- because they were sent to fight for a purpose other than America's freedom.