USA NPN National Phenology Network

Taking the Pulse of Our Planet

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The USA-NPN, phenology, and our partners are often in the news. Follow some recent stories below.

Image credit:
Sara N. Schaffer


  • Warmer Springs Mean Less Snow Cover, Disruptions for Plants and Animals, and More Allergies, Scientists Say
    Tuesday, March 19, 2013

    Union Concerned Scientists Press Release on climate change features the USA National Phenology Network. 

  • A Science of Signs of Spring
    Sunday, March 17, 2013

    The USA National Phenology Network featured in Wall Street Journal Article written by Robert Lee Hotz.  

    Friday, March 15, 2013

    New USA National Phenology Network information sheets synthesize recent changes in climate and phenology in eight U.S. regions. Find out what changes have been observed in salamanders in the Southeast, caribou in Alaska, ragweed in the Great Plains and more.

  • Warming trends bring earlier migrating Ruby-throats; will flowers and small insects stay in sync?
    Friday, February 15, 2013

    Clemson University blog entry focusing on study of spring migrations for Ruby-throated Hummingbirds using about 40,000 observations reported by citizen science volunteers.

  • Spring may come earlier to North American forests, research says
    Tuesday, January 29, 2013 composed an article on climate change, drawing from many sources.