Here we have tree-ring samples from two trees that grew not too far from each other. Notice how the patterns for both are the same except that, for one, the rings are compressed, which shows that it ...

We all know what tree line is in Colorado: the point above which trees don’t grow. But what determines tree line: Cold? Soil conditions? Precipitation? And is tree line different in various parts of ...

Hey all, Thanks to the Million Trees NYC movement all of our tree plots now have tree occupants. However, we only had a couple of tree plots and we would like to have more. How does one go about ...