The authoritative guide to ensuring science and technology make life on Earth better, not worse.

2020 presidential election

firefighter with wild fire in Australia

Bloomberg: Masking an inadequate plan with “snazzy climate ads”?

By Emily Holden | Climate Change

Nuclear launch console.

Hot-button campaign issue: 2020 Democrats disagree on nuclear launch authority

By John Krzyzaniak | Analysis, Nuclear Weapons

John Holdren

The overwhelming case for no first use

By John P. Holdren | Analysis, Nuclear Weapons

Alexandra Bell

What the presidential candidates should be asked about arms control and nonproliferation

By Alexandra Bell | Analysis, Nuclear Weapons

A Minuteman III missile crew on alert.

Why nuclear weapons should be a major focus of the 2020 campaign

By John Mecklin | Nuclear Weapons

John Holdren

The overwhelming case for no first use

By John P. Holdren