Policy
50, 100 & 150 Years Ago: September 2021
U.S. could go metric; vicious fish
Stories by Mark Fischetti
Policy
50, 100 & 150 Years Ago: August 2021
Tasty radio; early fake leather
Policy
50, 100 & 150 Years Ago: July 2021
Madame Curie honored; immortality for humans
Culture
50, 100 & 150 Years Ago: June 2021
Social strata of turkeys; moon bombs
Fitness
Hormone Highs and Lows Follow a Seasonal Pattern
A newly discovered internal body clock creates annual peaks and valleys
Engineering
50, 100 & 150 Years Ago: May 2021
When time began; superior bread baking
Climate Change
Youth Leaders for Climate Justice Say, ‘We Are Ready to Work’
Inspiring individuals from Argentina, Colombia and Kuwait lay out actions that can improve people’s lives
Climate Change
We Are Living in a Climate Emergency, and We’re Going to Say So
It’s time to use a term that more than 13,000 scientists agree is needed
Policy
Nations Claim Large Overlapping Sections of Arctic Seafloor
The five coastal countries will have to rectify their science and their politics
Fitness
Our Bodies Replace Billions of Cells Every Day
Blood and the gut dominate cell turnover
Natural Disasters
Hurricane Names from Greek Alphabet Are Dropped
Sticking with human names will lessen confusion and distraction
EARTH
Sunlight Changes Unequally All Year Long
Some days we gain one minute; some days we gain three
Policy
Green Alternative to Border Wall Might Have Saved Texas
A U.S.-Mexico corridor of renewable energy and water could have prevented widespread emergencies
Culture
Amanda Gorman’s Climate Poem Says, Act ‘Now, Now, Now’
The youth poet laureate offers an urgent message
Public Health
Cholesterol Drops in the West and Rises in the East
Blood levels change as people alter diets and the use of statin medications
Environment
COVID Pandemic Reduces Seismic Noise
Vibrations in the earth’s crust generated by human activity dropped as lockdowns went into effect
Medicine
The COVID Cold Chain: How a Vaccine Will Get to You
A vaccine logistics expert explains how millions of frozen vials will be widely distributed
Public Health
Coronavirus Vaccine Is 90 Percent Effective in Large Trial, Pfizer Says
Genetic engineering could allow for speedy production as well
Energy
Election Science Stakes: Energy
Scientific American senior editor Mark Fischetti and associate editor Andrea Thompson talk about this election and the future of U.S. energy research and policy.
Environment
Lead Pollution Reflects Dramatic World Events
Emissions of lead particles wax and wane with empires, plagues and revolutions
