As Winters Warm, Nutrient Pollution Threatens 40% of U.S.

Scientists are ringing alarm bells about a significant new threat to U.S. water quality: as winters warm due to climate change, they are unleashing large amounts of nutrient pollution into lakes, rivers, and streams.

The first-of-its-kind national study finds that previously frozen winter nutrient pollution—unlocked by rising winter temperatures and rainfall—is putting water quality at risk in 40% of the contiguous U.S., including over 40 states.

CU Social Innovation Hub – Driving Social Science Research towards Social Innovation, Raising the Community’s Quality of Life, Meeting Social Needs

Chula reveals the success of CU SiHub as an incubator for faculty members, researchers, and students to drive research in the social sciences, arts and humanities to create social innovation businesses and social enterprises toward a sustainable society.

The 20 best places to tackle U.S. farm nitrogen pollution

A pioneering study of U.S nitrogen use in agriculture has identified 20 places across the country where farmers, government, and citizens should target nitrogen reduction efforts.

The 20 nitrogen “hotspots of opportunity”–which appear on a striking map–represent a whopping 63% of the total surplus nitrogen balance in U.S. croplands, but only 24% of U.S. cropland area.

Nitrogen inputs are so high in these areas that farmers can most likely reduce nitrogen use without hurting crop yields.