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January 04, 2023

Dear Reader,

I'm covering for Andrea Thompson today. In the last several decades, scientists have repeatedly changed their predictions about how fast the arctic is melting. An aggressive positive feedback loop of lost ice, warming ocean temperatures, and further ice melting is now leading some to estimate that the arctic will be completely free of summer ice within the next 20 years. Maybe sooner. Now, scientists at the U.S. National Snow and Ice Data Center have created the first systematic ranking of the planet's some 200,000 glaciers, in order to track their changes. Check out the results in this week's top story. 

Andrea Gawrylewski, Chief Newsletter Editor


A New Map Tracks the World's Largest Glaciers

A visualization compares the forms of Earth’s largest flows of ice

By Theo Nicitopoulos,Amanda Montañez

Climate Change

Financial Firms May Have to Reveal their Climate Risk

And public companies may have to disclose their greenhouse gas emissions, if regulators finalize proposed rules

By Avery Ellfeldt,E&E News


Storm-Chasing Seabirds Ride Out Hurricanes from Inside

Streaked shearwaters head deep into hurricanes to avoid crash landings

By Jesse Greenspan


Saving Coral Reefs with Dental Tech

Dental scanners could help researchers diagnose stressed-out baby corals

By Susan Cosier


If Future Humans Terraformed a New Earth, Could They Get It Right?

A novel that redefines personhood, greed and despair in biotech, arguing for a singular reality, and more books

By Amy Brady


How Water Cycles Can Help Prevent Disastrous Floods and Drought

To prevent devastating droughts and floods, humanity can tune in to natural solutions to repair water cycles that human development has disrupted

By Erica Gies


How to Construct Buildings That Have a Positive Impact on Climate and Biodiversity

Making buildings part of a circular economy that minimizes the waste of materials could yield huge environmental rewards

By Katharine Sanderson


What's on the Horizon for 2023

Scientific American editors share what scientific events they are paying attention to as 2023 begins

By The Editors


"The more accurately we can map glacier outlines, the better we can track their melting due to climate change."

Ann Windnagel, research assistant at the U.S. National Snow and Ice Data Center


The Arctic Is Breaking Climate Records, Altering Weather Worldwide

The Arctic climate is shattering record after record, altering weather worldwide


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