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seasonal variability

A lake, seen from a rock on the shore, is mostly covered in ice but beginning to melt. The melting water is purple. On the other side of the lake, a rocky cliffside with evergreen trees is visible beneath a blue sky.
Posted inResearch Spotlights

How the Spring Thaw Influences Arsenic Levels in Lakes

by Saima May Sidik 6 February 20266 February 2026

Four lakes near Yellowknife, Canada, show that there’s no one-size-fits-all answer.

Two people in shadow explore a dark ice cave with ice stalactites and columnar-appearing sides. Light from the entrance backlights the scene.
Posted inNews

Could Future Mars Habitats Be Made of Ice?

by Olivia Maule 15 December 202515 December 2025

Models suggest that clear ice, sourced and distilled on Mars, could offer a feasible alternative for building stable off-world structures.

Aerial view of snow-covered Yukon River Delta in Alaska.
Posted inNews

Changing Winters Leave Indigenous Alaskans on Thin Ice

by Cassidy Beach 12 December 202517 December 2025

Researchers are blending Indigenous Knowledges with climate models to describe shifts in snow and ice.

A backward C-shaped swirl of milky blues and greens appears against a deep blue background. In the foreground, toward the edges of the image, clouds appear as white patches.
Posted inResearch Spotlights

Wintertime Spike in Oceanic Iron Levels Detected near Hawaii

Sarah Stanley, Science Writer by Sarah Stanley 11 December 202511 December 2025

Seasonal rainfall and runoff of sediments from the Hawaiian Islands could be responsible for the previously undetected peak.

Daniel James instala un monitor de tasa de goteo en una estalagmita de flujo en la cueva Grutas Tzabnah en el estado de Yucatán, México, como parte de una campaña de monitoreo de cuevas.
Posted inNews

Grandes Sequias Coincidieron con el Colapso Maya Clásico

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 17 November 202517 November 2025

El entendimiento de cómo las ciudades individuales respondieron al estrés climático ayudará a crear imágenes holísticas de cómo estas sociedades funcionaban.

Aerial view of a green tractor pulling a red seeder across an large unplanted farm plot
Posted inOpinions

Scientists Must Join Forces to Solve Forecasting’s Predictability Desert

by Jadwiga H. Richter and Everette Joseph 17 October 202517 October 2025

To strengthen societal resilience to worsening natural hazards, siloed Earth system science communities must collaborate to understand conditions that favor skillful subseasonal-to-seasonal forecasts.

A researcher in a hard hat sits in a backlit cave with a small metal instrument.
Posted inNews

Major Droughts Coincided with Classic Maya Collapse

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 24 September 202524 September 2025

Understanding how individual cities responded to climate stress will help create holistic pictures of how these societies functioned.

In this bird’s-eye satellite view, light brown peaks and valleys appear beneath a thin, grayish-white haze of foggy cloud cover that varies in translucence.
Posted inResearch Spotlights

First Complete Picture of Nighttime Clouds on Mars

Sarah Stanley, Science Writer by Sarah Stanley 11 August 202519 August 2025

Data captured by the Emirates Mars Mission reveal that clouds are typically thicker during Martian nighttime than daytime.

A square research plot with no snow, surrounded by a snowy forest
Posted inNews

Warming Winters Sabotage Trees’ Carbon Uptake

by Grace van Deelen 31 July 202531 July 2025

In temperate forests, the biomass-building benefits of warmer growing seasons are offset by damaging variability in winter weather—a disparity that climate models may miss.

A satellite image of northwestern Europe at night shows several urban centers that appear as bright clusters of light.
Posted inNews

Artificial Light Lengthens the Urban Growing Season

by Caroline Hasler 18 July 202518 July 2025

New research shows that artificial light at night lengthens the plant growing season in cities, overshadowing the effect of high urban temperatures.

Posts pagination

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

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Research Spotlights

A Road Map to Truly Sustainable Water Systems in Space

9 February 20269 February 2026
Editors' Highlights

Why Are Thunderstorms More Intense Over Land Than Ocean?

9 February 20269 February 2026
Editors' Vox

A Double-Edged Sword: The Global Oxychlorine Cycle on Mars

10 February 202610 February 2026
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