UNH study finds 'Vernal Window' opening earlier, longer: Is spring getting longer?

Spring blossoms are a welcome sign of warmer weather ahead in this 2015 file photo. (DAVID LANE/UNION LEADER)

With the first day of spring around the corner, temperatures start to rise, ice melts away, and the world around us starts to blossom. Scientists refer to this transition from winter to the growing season as the “vernal window”, and a new study led by the University of New Hampshire, U.S., shows this window may be getting longer.


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