Nobody has figured out a roadmap to get to done using only term 1. But we know it will help, and make other things better in the meantime, so it's always worth

Nobody has figured out a roadmap to get to done using only term 1. But we know it will help, and make other things better in the meantime, so it's always worth doing. Meanwhile, term 2 is unsolved but probably the only way to get back to 350ppm.