USA NPN National Phenology Network

Taking the Pulse of Our Planet

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USA National Phenology Network

The USA-NPN brings together volunteer observers, government agencies, non-profit groups, educators and students of all ages to monitor the impacts of climate change on plants and animals in the United States.


August 9th, 2022

There are now over 30 million phenology records in the National Phenology Database! "Reaching 30 million records speaks to the depth of USA-NPN’s engagement as well as the incredible commitment among tens of thousands of professional and volunteer observers and partners across the country," said USA-NPN Director Theresa Crimmins. A recent paper in BioScience authored by USA-NPN staff and colleagues demonstrates the breadth of research and decisions that are made possible by these data.

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