Add Yahoo as a preferred source to see more of our stories on Google. Millions of real Christmas trees are purchased every year. And making the annual trip to a tree farm or lot where cut trees are on ...

Trees are tall. Humans, relatively speaking, are not. And we're not the most agile climbers in the animal kingdom, either. But we are crafty, and we can out-think even the most wizened redwood. But ...

Dr. Mubark Mahmud PhD, an environmental researcher originally from Kano State and now residing in France, has developed a groundbreaking technique for measuring tree height, now recognised as the ...