Want a sustainable future? Then look to the world’s cities p.697

In a rapidly urbanizing world, what happens in cities matters — and sustainability success stories show what can be achieved when researchers and policymakers work together.

doi: 10.1038/d41586-023-02597-3

Tackle ever-growing consumption to safeguard sustainability gains p.698

The world is consuming more efficiently, but still using more stuff. More-concerted efforts to change both consumer and producer behaviour are needed.

doi: 10.1038/d41586-023-02596-4

Earth’s hottest month: these charts show what happened in July and what comes next p.703

doi: 10.1038/d41586-023-02552-2

LK-99 isn’t a superconductor — how science sleuths solved the mystery p.705

Efforts to replicate the material have pieced together the puzzle of why it displayed superconducting-like behaviours.

doi: 10.1038/d41586-023-02585-7

Can the world really stop wild polio by the end of 2023? p.706

Given that global efforts to eradicate the poliovirus were recently described as unsuccessful, how are Afghanistan and Pakistan now on the verge of eliminating it?

doi: 10.1038/d41586-023-02577-7

Hawaii wildfires: did scientists expect Maui to burn? p.708

doi: 10.1038/d41586-023-02571-z

Older mouse brains rejuvenated by protein found in young blood p.709

A platelet factor joins the list of blood components that might have anti-ageing effects.

doi: 10.1038/d41586-023-02563-z

‘Truly historic’: How science helped kids win a landmark climate trial p.710

doi: 10.1038/d41586-023-02592-8

Trouble in the Amazon p.712

doi: 10.1038/d41586-023-02599-1

Europe spent €600 million to recreate the human brain in a computer. How did it go? p.718

doi: 10.1038/d41586-023-02600-x

Satellite images show the widespread impact of mining on tropical rivers p.729

A careful analysis of satellite images has revealed marked changes in the suspended-sediment concentrations of many rivers around the world. The study links these changes directly to river mining activities in the affected areas.

doi: 10.1038/d41586-023-02349-3

Analog chip paves the way for sustainable AI p.731

As the resources required by artificial intelligence increase unsustainably, an analog design provides an energy-efficient alternative to digital computer chips — and one that is ideally suited to neural-network computations.

doi: 10.1038/d41586-023-02569-7

Mitochondrial DNA comes with nuclear strings attached p.732

A genetic analysis provides the most-detailed glimpse yet of how genetic variants in nuclear DNA regulate the copy number and variability of DNA housed in organelles called mitochondria.

doi: 10.1038/d41586-023-01783-7

A really big fossil whale p.734

A newly discovered fossil of an extinct whale from Peru indicates that the animal’s skeleton was unexpectedly enormous. This finding challenges our understanding of body-size evolution.

doi: 10.1038/d41586-023-02408-9

Assessing the values of nature to promote a sustainable future p.735

Understanding the diverse ways in which the natural world provides value aids informed policy decisions. The generation of a detailed catalogue of this diversity, and ways to assess values, paves the way to a more sustainable future.

doi: 10.1038/d41586-023-02487-8

From target discovery to clinical drug development with human genetics p.737

doi: 10.1038/s41586-023-06388-8

No thick carbon dioxide atmosphere on the rocky exoplanet TRAPPIST-1 c p.746

doi: 10.1038/s41586-023-06232-z

Mixed-dimensional moiré systems of twisted graphitic thin films p.750

doi: 10.1038/s41586-023-06290-3

Mixing of moiré-surface and bulk states in graphite p.756

doi: 10.1038/s41586-023-06264-5

Superconductivity and strong interactions in a tunable moiré quasicrystal p.762

doi: 10.1038/s41586-023-06294-z

An analog-AI chip for energy-efficient speech recognition and transcription p.768

doi: 10.1038/s41586-023-06337-5

Spin–vibronic coherence drives singlet–triplet conversion p.776

doi: 10.1038/s41586-023-06233-y

Proton transport through nanoscale corrugations in two-dimensional crystals p.782

doi: 10.1038/s41586-023-06247-6

A global rise in alluvial mining increases sediment load in tropical rivers p.787

doi: 10.1038/s41586-023-06309-9

Variation in bridgmanite grain size accounts for the mid-mantle viscosity jump p.794

doi: 10.1038/s41586-023-06215-0

The break of earthquake asperities imaged by distributed acoustic sensing p.800

doi: 10.1038/s41586-023-06227-w

Landscape-scale benefits of protected areas for tropical biodiversity p.807

doi: 10.1038/s41586-023-06410-z

Diverse values of nature for sustainability p.813

doi: 10.1038/s41586-023-06406-9

A heavyweight early whale pushes the boundaries of vertebrate morphology p.824

doi: 10.1038/s41586-023-06381-1

Einkorn genomics sheds light on history of the oldest domesticated wheat p.830

doi: 10.1038/s41586-023-06389-7

Nuclear genetic control of mtDNA copy number and heteroplasmy in humans p.839

doi: 10.1038/s41586-023-06426-5

Europeans’ support for refugees of varying background is stable over time p.849

doi: 10.1038/s41586-023-06417-6

Consent document translation expense hinders inclusive clinical trial enrolment p.855

doi: 10.1038/s41586-023-06382-0

Transient naive reprogramming corrects hiPS cells functionally and epigenetically p.863

doi: 10.1038/s41586-023-06424-7

TRIM5α restricts poxviruses and is antagonized by CypA and the viral protein C6 p.873

doi: 10.1038/s41586-023-06401-0

Lactate limits CNS autoimmunity by stabilizing HIF-1α in dendritic cells p.881

doi: 10.1038/s41586-023-06409-6

Mitochondrial integrated stress response controls lung epithelial cell fate p.890

doi: 10.1038/s41586-023-06423-8

TDP-43 forms amyloid filaments with a distinct fold in type A FTLD-TDP p.898

doi: 10.1038/s41586-023-06405-w

Tail engagement of arrestin at the glucagon receptor p.904

doi: 10.1038/s41586-023-06420-x