The California Nitrogen Assessment: Challenges and Solutions for People, Agriculture, and the Environment

by Zixin Lu last modified Mar 16, 2016 04:04 PM
Nitrogen plays a critical role in the global food supply, but the tradeoffs of excess nitrogen application involve increased costs for farmers and consequences for the environment and human health. Nitrogen in agriculture has become an increasingly important topic in California, and policies are currently being shaped for how to monitor and manage nitrogen use, leaching, and runoff.

CNA landscape graphic_image only

The California Nitrogen Assessment (CNA) is the first comprehensive account of nitrogen flows, practices, and policies for California, encompassing all nitrogen flows—not just those associated with agriculture—and their impacts on ecosystem services and human wellbeing. How California handles issues of nitrogen will be of interest nationally and internationally, and the goal of the assessment is to link science with action and to produce information that affects both future policy and solutions for addressing nitrogen pollution. The CNA also provides a model for application of integrated ecosystem assessment methods at regional and state (subnational) levels.

The CNA has undergone rigorous scientific review and stakeholder review stages, which concluded in June 2015. The published report The California Nitrogen Assessment: Challenges and Solutions for People, Agriculture, and the Environment will be released in spring 2016. Please click here to subscribe for e-mail updates and announcements from the California Nitrogen Assessment team.

Explore some of the key findings from each chapter in the CNA


Underlying Drivers of Nitrogen Flows in California

Direct Drivers of California's Nitrogen Cycle

Mass Balance of Nitrogen in California

Ecosystem Services and Human Well-being

Future Scenarios of Nitrogen in California

Practices and Technologies

Policies and Institutions


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