A new map shows forest height around the globe and will improve estimates of how much carbon is stored in trees.

Forests protect against avalanches, but not every forest is equally effective. Thanks to almost 50 years of observations at ...

Roger H. Marty, The Number of Paths in a Rooted Binary Tree of Infinite Height, The College Mathematics Journal, Vol. 21, No. 4 (Sep., 1990), pp. 305-307 ...