PHILADELPHIA (WPVI) -- Tree pollen counts have escalated into the "extreme" levels and grass pollen is right behind it, according to The Asthma Center. Allergist Dr. Manav Segal says the extreme tree ...

Weather patterns like heat waves or dry spells can sometimes stall over one region. A new University of Arizona study found clues about why. The researchers analyzed tree rings from centuries-old ...

The proposed Bitterroot Front Project extends along the eastern side of the Bitterroot Range approximately from Lolo to Darby ...

Friday is the last day for the public to comment on the environmental impact statement of the draft National Old-Growth Amendment. The U.S. Forest Service is deciding how it will manage the remaining ...