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agriculture

A stream in autumn with trees and vegetation along both banks, with an old barn and agricultural fields in the background.
Posted inNews

Scientists Call for Policies to Buffer Agricultural Runoff

by Jady Carmichael 22 October 202128 March 2022

By reviewing 44 studies, researchers make a scientific case for regulating agricultural pollution of streams and rivers by implementing conservation practices, including riparian buffer zones.

Slash-and-burn agriculture in Laos
Posted inResearch Spotlights

Fires Lit for Agriculture Boost Air Pollution in Southeast Asia

by Terri Cook 8 October 202121 March 2022

Reducing fires lit for agricultural management and deforestation, which unduly affect poorer populations, could help prevent 59,000 premature deaths per year.

A farmer carries forage for his mule in southwestern Ethiopia.
Posted inNews

To Understand Hunger in Sub-Saharan Africa, Consider Both Climate and Conflict

by Rachel Fritts 17 September 202121 March 2022

Warfare exacerbates the impacts of drought to produce food insecurity crises that last long after the drought has passed, new research documents.

An aerial view of green algae mats near the western shore of Lake Erie
Posted inNews

Lake Erie Sediments: All Dredged Up with Nowhere to Grow

by J. Besl 31 August 202128 March 2022

Agriculture is a key contributor to the algae mats that plague Lake Erie. With so many fertilizers entering the lake, could sediment from the lake floor be used to grow crops instead?

Photo of two corn hybrid species growing in a field. The adult hybrid plants at left are green, whereas the hybrid plants at right are yellow and dried.
Posted inNews

Index Suggests That Half of Nitrogen Applied to Crops Is Lost

by Jenessa Duncombe 23 August 202118 April 2022

Food production is becoming less efficient at using nitrogen fertilizer, according to a review of global values. Excess nitrogen damages the environment and the climate.

Trawling nets
Posted inNews

Getting to the Bottom of Trawling’s Carbon Emissions

by Nancy Averett 9 July 202114 October 2021

A new model shows that bottom trawling, which stirs up marine sediments as weighted nets scrape the ocean floor, may be releasing more than a billion metric tons of carbon every year.

A reenactor works on a Viking farm at a living history museum in Sweden.
Posted inNews

Food Security Lessons from the Vikings

by James Dacey 29 June 202116 December 2021

Scandinavian societies of the first millennium adapted their farming practices to volcano-driven climate changes.

Excavated causeway built in the Birds of Paradise wetlands
Posted inNews

Ancient Maya Made Widespread Changes to Wetland Landscape

by Joshua Learn 5 May 202120 October 2021

A system of canals 2 millennia old sustained a local population after the collapse of its neighbors, and it continues to affect local ecology today.

Ripe coffee cherries (red) are ready to harvest in the shade of the forest in Serranía de San Lucas, in northern Colombia
Posted inNews

A Warming World Threatens Colombia’s Coffee Future

by Andrew J. Wight 28 April 202120 October 2021

Colombia is the second-largest producer of Arabica coffee, but changing climate, soil, and precipitation patterns are already altering the harvest volume, production techniques, and even the taste of coffee.

Map showing moisture contribution anomalies during the 2005 drought quantified as the deviation from long-term average.
Posted inEditors' Highlights

Upwind Forest Buffers Rondonia Cropland Against Regional Drought

by G. Wang 27 April 20216 December 2021

During severe Amazonia droughts when oceanic supply of moisture failed, the magnitude of rainfall reduction over Rondonia was moderated by enhanced moisture supply from upwind forests.

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