No new inventions are needed, and it’s inexpensive. Condensation trails - or contrails - from planes are responsible for 1-2% of human-induced global warming. The good news is that if we make minimal adjustments to how we fly, we can solve this problem fast. The bad news is that at a time when we urgently need to make climate progress, we're not implementing this simple solution. We founded Blue Lines to help solve this problem. See who we are and why we do this and learn how you can get involved.