The lower 48 states are projected to cross the 2 - degree C warming threshold about 10 to 20 years earlier than the global mean annual temperature, they note. (sciencedaily.com)
Also, the 2006 blooms occurred during the «decade with the warmest mean annual temperatures and the earliest ice - off dates,» the study said. (scientificamerican.com)
Knowing that there had been an increase of from 1 to 1 1/2 degrees in mean annual temperature in these Alps over the last century, the researchers expected to see plants accommodate to the change by moving upward about 10 yards a decade. (nytimes.com)