A new approach for the world’s climate strategy | Bill Gates

In this memo, I’ve argued that we should measure success by our impact on human welfare more than our impact on the global temperature, and that our success relies on putting energy, health, and agriculture at the center of our strategies...

1. Drive the Green Premium to zero.
2. Be rigorous about measuring impact.

Vaccines are the undisputed champion of lives saved per dollar spent. Since 2000, Gavi has spent $22 billion to immunize children in poor countries, preventing 19 million deaths. That means Gavi can save a life for a little more than $1,000. Other estimates find that vaccines cost less than $5,000 per life saved. And vaccines become even more important in a warming world because children who aren’t dying of measles or whooping cough will be more likely to survive when a heat wave hits or a drought threatens the local food supply.