This week on The Allegheny Front, scientists, nature lovers and filmmakers work to save Pennsylvania's iconic hemlocks. Plus, nano technology meets bird research. And, a bipartisan group of state lawmakers is backing legislation aimed at getting Pennsylvania to 100% renewable energy by the year 2050.

This week on The Allegheny Front, will the Department of Energy throw a life jacket to a power company that relies on coal and nuclear energy? And a new organization will put birds front and center on the shores of Lake Erie. Plus, birders have big love for little saw whet owls.