Irrigation accounts for~ 70% of global freshwater withdrawals and~ 90% of consumptive
water use, driving myriad Earth system impacts. In this Review, we summarize how irrigation …

The US dairy industry has realized tremendous improvements in efficiencies and milk
production since the 1940s. During this time, farm and total cow numbers have decreased …

Over the past decades, groundwater quality has deteriorated worldwide by nitrate pollution
due to the intensive use of fertilizers in agriculture, release of untreated urban sewage and …

Projected longer-term droughts and intense floods underscore the need to store more water
to manage climate extremes. Here we show how depleted aquifers have been used to store …

With this article, we develop the Drinking Water Disparities Framework to explain
environmental injustice in the context of drinking water in the United States. The framework …

Millions of Californians access drinking water via domestic wells, which are vulnerable to
drought and unsustainable groundwater management. Groundwater overdraft and the …

Spatial and seasonal variations in nitrate contamination are a globally concern. While
numerous studies have used δ 15 N-NO 3 and δ 18 O-NO 3 to elucidate the dominant …

Groundwater quality is a concern in alluvial aquifers underlying agricultural areas
worldwide. Nitrate from land applied fertilizers or from animal waste can leach to …

Approximately 10% of community water systems in the United States experience a health-
based violation of drinking water quality; however, recently allocated funds for improving …

Nutrient contamination assessments in the three West African tropical Comoé, Bandama,
and Bia Rivers (Côte d'Ivoire) were performed from March 2016 to March 2018. Five stations …