There's a new lava dome forming on top of Alaska's Cleveland Volcano, and the Alaska Volcano Observatory bumped up its aviation warning level to orange. That means the volcano is "exhibiting heightened or escalating unrest with increased potential of eruption".
As oil and gas drilling continues its march into more populated areas, there’s growing pressure on Colorado lawmakers to wade into a thorny battle escalating between the state and many local governments. Several bills that would give cities and counties more authority to regulate the controversial process of hydraulic fracturing are likely to be debated this session, even though it’s long been viewed as the state’s regulatory jurisdiction. KUNC’s Kirk Siegler reports on a series of tangled court rulings that got us to this point.
A niche industry of tour companies is taking people into wolves' habitat at Yellowstone National Park. Montana Public Radio's Dan Boyce went on an expedition with a man who recognizes the problems wolves bring to the landscape even as he makes his living off of them.