Sunday, April 17, 2016
WEST LAFAYETTE, Ind. - Rising levels of atmospheric carbon dioxide have reduced protein in goldenrod pollen, a key late-season food source for North American bees, a Purdue University study shows.
Researchers found that the overall protein concentration of goldenrod pollen fell about one-third from the onset of the Industrial Revolution to the beginning of the 21st century.
Posted by Dictynna at 4:55 PM