Is colorful fall foliage arriving later? Scientists think it may be, and they've launched studies to determine whether climate change is to blame. Similar studies in Europe and Japan have indicated leaves there are changing color and falling farther into the season than in the past, and Boston University Professor Richard Primack believes that's an indication it's happening here, too, according to the Associated Press.
Phenology, the study of nature's timetable comes into play here. You've read my advice about putting down crabgrass control between the time when the forsythia blooms and the lilacs fade. That's phenology at its finest. The date doesn't matter. Rather, what's going on in nature at the time determines the timing, and this can vary from year to year.
So if dramatically colored fall leaves, which timing is closely tied to cooler temperatures, decreased sunlight and soil moisture, are delayed, logic tells us that could, in fact, have something to do with the weather.
You can read more about this phenomenon and the study here.