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Salvador Reynoso-Cruces

Haze hovers over the skyline of part of Mexico City.
Posted inScience Updates

The Ozone Paradox: A Growing Cost of a Warmer Atmosphere

by Telma Castro, Oscar Peralta, Salvador Reynoso-Cruces, Harry Alvarez-Ospina and Alejandro Salcido 9 September 20269 September 2026

Mexico City’s air is getting cleaner, but ozone levels near the ground aren’t decreasing as fast as expected. Climate change is partly to blame.

A squat palm tree stands beside an old blue tarp and other plastic debris littering a patch of rocky beach shoreline beside a stretch of pale blue ocean.
Posted inScience Updates

Tracking Microplastics Above and Below the Waves

by Salvador Reynoso-Cruces and Harry Alvarez-Ospina 25 March 20261 July 2026

Measuring plastic particles carried on Cozumel’s sea breezes and ocean currents reveals how simple physics shapes the particles’ pathways and the impacts they may have on coastal regions.

Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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Patchier Permafrost Is Linked to More Intense Hillslope Erosion

14 October 202614 October 2026
Editors' Highlights

Limits of Satellite Detection of Extreme Carbon Cycle Events

7 October 20267 October 2026
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Where Fire Ends, Chemistry Begins

30 September 202630 September 2026
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