Hannah Waters

@hanner.bsky.social

senior editor @quantamagazine.bsky.social covering biology | former climate editor at Audubon | send story tips and pitches: hwaters@quantamagazine.org | quantamagazine.org/biology work portfolio: hanjeanwat.com/about

I'm not sure folks have realized just how crazy the second half of 2026 and 2027 will be for global temperatures – on the back of a record-smashing El Niño event. Here is my latest estimate of where both years will end up compared to global temperatures since 1850.

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Shayan Oveis Gharan has trouble staying still — so it’s fitting that he’s known for his work on the traveling salesperson problem, a notoriously difficult computational problem about roaming from place to place. And now he’s won the IMU Abacus Medal.

Shayan Oveis Gharan Wins 2026 IMU Abacus Medal | Quanta Magazine

Shayan Oveis Gharan has won the Abacus Medal for using tools from across mathematics to boost the power of algorithms.

quantamagazine.org

Cows can eat up to 100lbs daily, thanks to the bustling microbiome in their gut pouch. All that digestion results in a whole lot of cow burps. And all those cow burps are warming our planet. Scientists are exploring new ways to squelch the belch. www.quantamagazine.org/a-new-way-th...

A New Way That a Cow’s Inner World Shapes Earth’s Atmosphere | Quanta Magazine

An organelle discovered inside a microbe inside a cow’s gut helps explain how livestock burps contribute to warming our planet.

quantamagazine.org

and also, isn't white supremacy such a profound intellectual error that you should immediately question the basic capacities of anyone who indulges it?

The ever-expanding list of core processes that mitochondria influence — immune activity, reproduction, metabolism, aging and longevity, and more — strongly suggests how mitochondrial dysfunctions could relate to many different diseases and disorders.

Martin Picard’s Mitochondrial Theory of Mind | Quanta Magazine

The biologist’s bold “energetic view of life” looks to the body’s strangest organelles as the link between cells, health, and mind and the foundation of our experience of being alive.

quantamagazine.org

In my first story with Kelley French for @notus.com, I spoke to the woman pictured in the Metro photo on July 4. She didn't know she went viral. Her family wants people to know their difficult reality. Please take some time with our story today www.notus.org/metro/viral-...

The Woman in the Photo Wanted to Be Alone. Instead, She Went Viral.

America saw what it wanted to see on the face of its newest icon. And everyone saw it wrong.

notus.org

With all the July model runs now in, it is very likely that 2026 will see the largest El Niño event since records began in the late 1800s – and potentially by a truly mind-blowing margin. The median estimate is now 3.6C, roughly 0.8C hotter than the prior record (2.75C). www.theclimatebrink....

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For the 95%+ who never come forward, to be crystal clear: you made a brave choice too. I'm proud of you for every way that you heal, grow, try to forget things, or simply persist. 2/2

I've been doing sexual harassment and assault research and advocacy work since 2012. If there's one thing people need to understand is that everything, literally everything, is stacked against the victim. Every one who comes forward risks their reputation, identity, safety, and more. 1/2

As many experience lethal, unlivable heat, it's a good time to remember that there is no such thing as a climate refugee under the law. Climate breakdown was not understood when the UN convention was written. In the US, there is one way for extreme weather to be the basis for legal status: TPS.