of natural gas wells. >> suarez: for guys like bloch, it's never really over. he pointed out land near utah's desolation canyon, where the bureau of land management recently approved 1,298 new wells for the natural gas company gasco. >> the desolation canyon stretch of the green river is truly one of the big gems of american public lands. it's a remarkably wild landscape. one of the largest roadless areas in the lower 48 and that will be lost. the level of development will be significant. it'll significantly impact that area. >> suarez: the decision was a huge disappointment for bloch, who says once these places are developed, there's no going back. though new leases require companies to leave the land the way they found it, a desert is very slow to heal and hard to reclaim. >> woodruff: as ray has pointed out, modern drilling technology is largely responsible for the changing energy picture in this country. that technology involves a process known as fracking. in earlier reports, the newshour has covered the intense debate about fracking itself, otherwise known as "hydraulic fracturing." you can find links to our reports, plus much more information aboufracking,