Climate
Earth's CO2 Passes the 400 PPM Threshold--Maybe Permanently
Carbon dioxide levels often hit lows in September, but now remain above a crucial benchmark
Medicine
Kratom Drug Ban May Cripple Promising Painkiller Research
Climate
Trump, Clinton Argue over Climate Change
Policy & Ethics
Grading the Presidential Candidates on Science
Conservation
Conservation
The 2016 Scientific American Innovators Award Winners Turn Foam Waste into Water Purifiers
Natural Disasters
Natural Disasters
Big Earthquakes May Be More Likely During New and Full Moons
Public Health
Public Health
The Americas are Now Measles-Free
Public Health
Public Health
The State of Vaccine Skepticism in Four Maps
Physics
Physics
Chilling Time: How to Build the Coolest Clock on Earth
Most Popular
Grading the Presidential Candidates on Science
Scientific American evaluates responses from Clinton, Trump, Johnson and Stein to 20 questions
How the FDA Manipulates the Media
The U.S. Food and Drug Administration has been arm-twisting journalists into relinquishing their reportorial independence, our investigation reveals. Other institutions are following suit
Obama Warns of "Mass Migrations" If Climate Change Is Not Confronted
In his final U.N. address, the president says inaction will lead to more unrest
Creationism Invades Europe
An antiscience movement once limited mostly to the U.S. is gaining ground on the eastern side of the Atlantic
How Morality Changes in a Foreign Language
Fascinating ethical shifts come with thinking in a different language
Beyond Resveratrol: The Anti-Aging NAD Fad
Whenever I see my 10-year-old daughter brimming over with so much energy that she jumps up in the middle of supper to run around the table, I think to myself, “those young mitochondria.” Mitochondria are our cells’ energy dynamos.
Special Report
State of the World's Science 2016
Policy & Ethics
Governmental manipulation of news; scientists who won't speak about their work; and research the public never sees
Infographic of the Week
Videos
The 2016 Scientific American Innovators Award Winners Turn Foam Waste into Water Purifiers
Three 14 year olds from Columbus, Ohio won this years Scientific American Innovators award at the 2016 Google Science Fair in California on September 27, 2016.
