Leaves have begun falling in Delaware, but peak fall foliage is still a couple of weeks away. Each year, we say goodbye to summer and welcome the chilly temperatures of autumn with bonfires, pumpkin ...

Add Yahoo as a preferred source to see more of our stories on Google. "Fall's changing colors have been delayed up to four days per decade in North American forests since the early 1980s," says Andy ...

This year, we've learned that almost nothing is guaranteed in life. And yet, as summer turns to autumn, one thing that is certain is the leaves changing color.But why do the leaves change color? And ...

NPR's Short Wave podcast spoke to botanist and plant ecologist, Tanisha Williams, about why some leaves change color in the Fall. If you're in a part of the country with some great fall foliage and ...

It's that time of year again. Fall, when the leaves turn color and the Yankees turn into spectators. At least one of these is enjoyable. A lesson on the chemistry of colorful leaf pigments shows that, ...

For many of us in the north state, Autumn is our favorite time of year. The heat of summer is past, and deciduous trees put on a spectacular show of deep reds, yellows and oranges. The intensity of ...