Derek Markham is a green living expert who started writing for Treehugger in 2012. This iconic shade tree also happens to be a fast grower, with growth rates of more than two feet per year. While ...

Sixty miles east of Winslow, on the windswept plains of the Painted Desert, maroon-colored Triassic fossils recall a forest more than 200 million years old. Felled logs of the ancient conifer species ...

In 2010, Phoenix City Council approved an ambitious goal to plant enough trees to shade 25% of the city by 2030. Thirteen years later, city officials don't know how much progress they've made, if any.