The science is simple: as temperatures drop, deciduous trees stop producing chlorophyll, and - in the absence of the green pigment - their leaves change colours. Some times the transformation from ...

Here's where to see the fall leaves in Arizona: Sedona: For the best leaf peeping around Sedona, take State Route 89A through Oak Creek Canyon. The West Fork Trail along Oak Creek allows hikers to ...

I thought I saw more red foliage this fall. Is that related to climate change ... The stone circle at Stonehenge, erected around 2500 B.C., measured angles at the solstice by observing the ...