How to pick and preserve your Christmas tree

As families search for the perfect Christmas tree, two Cornell University experts who work closely with New York Christmas tree producers offer a few tricks for picking and preserving the perfect tree. Elizabeth Lamb has a Ph.D. in plant breeding and is a senior extension associate with the Cornell Cooperative Extension’s New York State Integrated […]

Forests lose essential nitrogen in surprising way, find scientists

Even during summer dry spells, some patches of soil in forested watersheds remain waterlogged. Researchers have discovered that these patches act as hot spots of microbial activity that remove nitrogen from groundwater and return it to the atmosphere, as reported in a Nov. 3 article in Proceedings of the National Academy of Sciences. Nitrogen is […]