Is Spring Getting Longer in New Hampshire?
Photo by Mark Bonica / Creative Commons
Monday is the vernal equinox: that’s the beginning of spring, according to astronomers. For ecologists, spring isn’t just a matter of the earth’s rotation around the sun.
It has to do with events like melting snow, and the tree canopy. According to new research from the University of New Hampshire, that ecological spring, also known as the “vernal window,” may be getting longer.