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How are plants affected by climate and the seasons? In this large experiment students across the Northern Hemisphere track the growth of the same plant as the season changes from winter to spring. They discover how temperatures, sunlight, geographic location, and other variables influence plant growth — and the full array of seasonal changes that take place in the springtime. These observations set the stage for a better understanding of the impact of a changing climate. >>>

Track the Arrival of Spring (See Timeline >>)

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Background information about the tulip study. >>

News
Spring 2009 Updates >>

Fall 2008 Updates >>

May 7 , 2009: Here's the latest news:

Blooming Gardens Everywhere/Where in North American is there still snow?/Tulips alive in Haines, but will they emerge soon?

Gardens Everywhere Blooming!!

When will they bloom in Alaska?

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Booklets, pictures, and slideshows for students >>

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