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

Analysis

tree branch silhouette and human brain

Who recently changed their minds on climate change, and why

By Kate Yoder | Analysis, Climate Change

Protesters holding placards during the Sunrise Movement protest inside the office of Democratic US Rep. Nancy Pelosi. (Photo by Michael Brochstein/SOPA Images/LightRocket via Getty Images)

Hundreds of environmental groups (but not some of the largest) list Green New Deal priorities

By Justine Calma | Analysis, Climate Change

Biological researcher He Jiankui (right) attends the Second International Summit on Human Genome Editing at the University of Hong Kong on November 28, 2018 in Hong Kong, China. Photo by Zhang Wei/China News Service/VCG via Getty Images.

Brave new world with Chinese characteristics

By Yangyang Cheng | Analysis, Biosecurity, Disruptive Technologies

The equivalent of one atomic bomb per second: How fast the oceans are warming

By Damian Carrington | Analysis

Graphic for Get Inside, Stay Inside, Stay Tuned

This is not a drill: Lessons from the false Hawaiian missile alert

By Kristyn Karl, Ashley Lytle | Analysis, Nuclear Risk

Illustration by Matt Field. Based in part on photos by Joe Ravi CC SA-BY 3.0 and Morio CC SA 3.0 via Wikimedia Commons.

Do social media bots have a right to free speech?

By Matt Field | Analysis, Disruptive Technologies

A North American red squirrel.

Gimme shelter: As world warms, species head for climate refugia

By David Shaw | Analysis, Climate Change

If yes to Saudi Arabia, no to whom?

By Victor Gilinsky, Henry Sokolski | Analysis, Nuclear Energy, Nuclear Risk, Nuclear Weapons

Global HFC scenarios without global controls and with full compliance with the Kigali Amendment. A scenario in which global HFC production is phased out by 2020. Credit: Scientific Assessment of Ozone Depletion:2018, Executive Summary.

Global agreement addressing ozone depletion will also bring large climate benefits

By Durwood J. Zaelke | Analysis, Climate Change

Y-12 National Security Complex in Oak Ridge TN.

Introduction: The wasteful and dangerous worldwide nuclear modernization craze

By John Mecklin | Analysis, Nuclear Risk, Nuclear Weapons

A missile launch. Credit: US Air Force via Wikimedia Commons.

Rebuilding an aging nuclear weapons complex: What should the United States do, and not do? An overview

By Robert Rosner, Lynn Eden | Analysis, Nuclear Risk, Nuclear Weapons

Six words that defined 2018

By Thomas Gaulkin | Analysis, Chemical Weapons, Climate Change, Disruptive Technologies, Nuclear Risk, Nuclear Weapons