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?
agriculture
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Index Suggests That Half of Nitrogen Applied to Crops Is Lost
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.
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Getting to the Bottom of Trawling’s Carbon Emissions
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.
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Food Security Lessons from the Vikings
Scandinavian societies of the first millennium adapted their farming practices to volcano-driven climate changes.
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Siltation Threatens Historic North Indian Dam
Experts recommend reforestation campaigns to combat siltation at Bhakra Dam, one of the first infrastructure projects pursued by India after independence.
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How Do Croplands Reduce CO2 During the Growing Season?
Regional variations in the seasonal drawdown of atmospheric CO2 can be used as a benchmark for evaluating models and satellite-derived estimates of land carbon uptake.
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Ancient Maya Made Widespread Changes to Wetland Landscape
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.
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A Warming World Threatens Colombia’s Coffee Future
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.
Posted inEditors' Highlights
Upwind Forest Buffers Rondonia Cropland Against Regional Drought
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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Early Inhabitants of the Bahamas Radically Altered the Environment
Clues in sediments show that once humans arrived on Great Abaco Island, they hunted large reptiles to extinction and burned the old hardwoods and palms, leading to new pine- and mangrove-dominated lands.