Flowering plants rely on pollinators like honey bees to reproduce. Honey bees, in turn, rely on flowering plants for food - in the form on nectar and pollen. The two animations below illustrate how an earlier springtime could cause plants and pollinators to shift out of sync.
To see the video "Feeling the Sting of Climate Change" that these animations were created for, visit entry #10481
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0