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deserts

Two satellite photos of the Lut Desert with arrows depicting wind-driven transport routes of sediment.
Posted inEditors' Highlights

A Unique Glimpse at Sediment Erosion and Deposition by Wind

by Valeriy Ivanov 21 July 202221 July 2022

The Lut Desert in Iran is an exceptional natural laboratory to study how wind moves sediment across the landscape. A new study quantifies erosional and depositional sediment fluxes of the desert.

Lofted dust layers over the Andes mountains
Posted inNews

Iodine-Laden Desert Dust Is Eating at Ozone Pollution

by Jackie Rocheleau 28 February 202228 February 2022

In a happy accident, scientists found a potential solution to an atmospheric chemistry mystery. Their findings could be a missing piece in the iodine cycle and in atmospheric models.

The Atacama Desert, Chile
Posted inResearch Spotlights

Understanding Rare Rain Events in the Driest Desert on Earth

by Emily Cerf 18 January 202218 January 2022

A new study reveals the atmospheric paths of storm events that can deliver a decade’s worth of rain in a few hours to the Atacama Desert.

People removing buffelgrass, an invasive grass, near cactus plants in Arizona
Posted inNews

Invasive Plants and Climate Change Will Alter Desert Landscapes

by Katherine Kornei 13 January 202213 January 2022

In experiments conducted in Biosphere 2, invasive buffelgrass weathers higher temperatures and drought conditions better than its native brethren.

Biocrust composed of mosses, lichens, and cyanobacteria
Posted inNews

Biocrust “Probiotics” Can Aid Dryland Restoration Efforts

by Derek Smith 10 January 202225 May 2022

Bacteria can speed up the growth of biocrust-forming organisms in nurseries, providing more material for restoration of degraded dryland soil.

An aerial image of orange sand dunes overtaking buildings.
Posted inNews

Dunes Dance to a New Rhythm in Climate Change

by Jenessa Duncombe 17 December 202117 December 2021

Dunes may morph or creep in new directions in a warming world.

Posted inNews

Greener, Wetter Arabia Was a Crossroads of Early Human Migration

by J. Besl 7 October 202126 April 2022

Hand axes, hippo bones, and a stack of ancient lake beds show that arid Arabia experienced intervals of humid weather, spurring pulses of human migration over the past 400,000 years.

Trowel and collection tools sit in a dry desert.
Posted inNews

Desert Life Conjures Organic Carbon from Thin Air

by Elise Cutts 10 August 202122 December 2021

Without water, photosynthesis shuts down. To survive dry spells, desert microbes scavenge traces of hydrogen from the air and burn it for energy. Some even use hydrogen to fuel carbon fixation.

A photo of the Dingo Fence in Australia’s Strzelecki Desert shows greater shrub density on the northern side of the fence (left side of the image).
Posted inNews

A Reminder of a Desert’s Past, Before Dingo Removal

by Nancy Averett 8 April 202116 December 2021

A fence spans Australia’s Strzelecki Desert, keeping dingoes out of the southern side. Drone and satellite technology have illustrated how removing this top predator changes vegetation growth.

Salmon in a smokehouse
Posted inNews

Network Connects Indigenous Knowledges in the Arctic and U.S. Southwest

by Jenessa Duncombe 13 January 20216 June 2022

Indigenous Peoples from the Arctic and the U.S. Southwest have joined together to tackle issues of food sovereignty in two environmental extremes. Their bond led to a swift response to COVID-19.

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