Climate debate warms up

Clair Bosen watched cattle graze on the stubble of corn he raised for grain — a spectacle he insists would have been nearly impossible on his Preston, Idaho, farm just a couple of decades ago.

It used to be, the 78-year-old farmer and rancher explained, that area producers dared only to raise silage corn in this part of the state. Even then, earlier frosts would often cut into their yields.