20 Hotspots to Start Fixing Nitrogen Pollution in Agriculture
Surplus nitrogen from farm fertilizer contaminates drinking water, creates dead zones, and contributes to climate change. A new study pinpoints prime places to target with solutions.
Nitrogen pollution is one of agriculture’s biggest and most intractable problems. Crops can’t grow without the critical nutrient, and because sources of nitrogen are easy to come by—synthetic fertilizer is cheap and manure from large animal agriculture operations is plentiful—farmers often apply too much, to try to ensure the highest yields.
Crisis in the Southwest: The United States, Mexico, and the Struggle over Texas (The American Crisis Series: Books on the Civil War Era)
The war between the United States and Mexico was decades in the making. Although Texas was an independent republic from 1836 to 1845, Texans retained an affiliation with the United States that virtually assured annexation at some point. Mexico’s reluctance to give up Texas put it on a collision course with the United States.