The Conversation

Happy Sunday − and welcome to the best of The Conversation U.S. Here are a few of our recently published stories:

I’m a relative newbie to ChatGPT and recently used it to create some drawings of what a deck might look like in my backyard. I thought it was pretty cool, and what’s more, free! But it may have cost the Earth about a bottle of water – or more, depending on the system used.

I learned that little fact from Leo S. Lo, a librarian at the University of Virginia who works with artificial intelligence. When I write an email or use a search engine, I usually don’t think about how much water it uses – but it’s increasingly adding up.

In one of last week’s most popular stories, Lo takes us through AI’s hidden water footprint, from a data center’s on-site cooling systems to the power plants keeping all its servers humming. He also offers a simple formula you can use to calculate the water footprint of your AI conversations – and how that stacks up against other common uses of water.

Bryan Keogh

Managing Editor

Readers' picks

AI has a hidden water cost − here’s how to calculate yours

Leo S. Lo, University of Virginia

AI systems’ water usage can vary widely, depending on where and when the computer answering the query is running.

How to poop outdoors in a way that won’t harm the environment and other hikers

Shari Edelson, Penn State; B. Derrick Taff, Penn State

Most people want to properly dispose of their waste, but they’re typically not prepared. Land managers can help users meet the moment.

What is AI slop? A technologist explains this new and largely unwelcome form of online content

Adam Nemeroff, Quinnipiac University

AI slop refers to low- to mid-quality content created with AI tools, often with little regard for accuracy or quality.

5 forecasts early climate models got right – the evidence is all around you

Nadir Jeevanjee, National Oceanic and Atmospheric Administration

From rising global temperatures to the fast-warming Arctic, early climate models predicted the changes half a century ago.

China’s WWII anniversary parade rekindles cross-strait battle over war narrative − and fears in Taiwan of future conflict

Meredith Oyen, University of Maryland, Baltimore County

Japan surrendered to the Chinese nationalist army in September 1945. But since then, Beijing has played up the role of communist fighters.

Editors' picks

How RFK Jr.’s misguided science on mRNA vaccines is shaping policy − a vaccine expert examines the false claims

Deborah Fuller, University of Washington

Chaos at the CDC and the sharp move away from mRNA vaccines has public health experts alarmed.

An Arkansas group’s effort to build a white ethnostate forms part of a wider US movement inspired by white supremacy

Paul J. Becker, University of Dayton

Several white nationalist groups such as Return to the Land have attempted to establish all-white communities across the country.

Labor Day and May Day emerged from the movement for a shorter workday in industrial America

Jeffrey Sklansky, University of Illinois Chicago

Both holidays arose at the same time, nearly 150 years ago, in the midst of an explosive labor uprising.

How Europe’s deforestation law could change the global coffee trade

Paul Mwebaze, University of Illinois at Urbana-Champaign

Small farms will have the hardest time meeting the rules, giving big producers an edge. One potential solution: agroforestry, growing coffee plants among the trees.

China’s electric vehicle influence expands nearly everywhere – except the US and Canada

Jack Barkenbus, Vanderbilt University

China is already producing a wide range of EVs, including several options that cost less than $25,000.

News Quiz 🧠

  • The Conversation U.S. weekly news quiz

    Fritz Holznagel, The Conversation

    Test your knowledge with a weekly quiz drawn from some of our favorite stories. Questions this week on China, wag bags and Maroons.