Stabilizing our climate is going to take some hard truths – and hard numbers. “If you look at 1.5 degrees, it's about 13 years,” says Stanford’s Arun Majumdar. “If you look at 2 degrees, it’s 20 years. And after that, it’s zero.” We can fight back with the power of zero: a zero-carbon grid, zero-emission vehicles, zero-net energy buildings and zero-waste manufacturing. Whether through massive technological breakthroughs or deployment of existing technologies, powering these opportunities will require funding and policy changes. Can a four-zero solution lead to a low carbon-future?

Hal Harvey, CEO, Energy Innovation, Author, Designing Climate Solutions: A Policy Guide for Low-Carbon Energy (Island Press, 2018)

Kate Gordon, Fellow, Columbia Center on Global Energy Policy

Arun Majumdar, Professor of Mechanical Engineering and Co-Director at the Precourt Institute for Energy, Stanford