Now that deciduous trees are bare, trunks and branches have taken center stage, and you might be noticing nuances and irregularities that evaded your attention over the summer. For instance, what are ...

There are many myths we grow up believing, such as the link between proximity to the television and the potential for blindness. Other childhood fables are more specific to circumventing ‘bad’ luck by ...

Forest Service lichenologist Sarah Jovan hardly has to walk half a block from her office in downtown Portland to find the type of shaggy, green moss she used to discover the city's hidden hot spots of ...

As countries from India to Ethiopia plant millions of trees to combat global warming, one German company has a much smaller idea. Berlin-based Green City Solutions plans to clean the air of local ...

PORTLAND, Ore. — Bullseye Glass and Precision Castparts both had to put out millions of settlement dollars after they were involved in class action lawsuits regarding their air pollution levels. Those ...