or it was until prolonged drought killed off the livestock business and devastated towns like plainview> it's 10:00 a.m. on march 16th, 2013. this has become a weekly ritual. each saturday these people walk the four miles around the cargill meat packing plant on the edge of town. they're praying for rain and for the plant to reopen. six weeks ago it closed, and overnight 10% of the area's entire workforce was laid off. it shut down because of a three-year drought that devastated the cattle herd here in texas. and without cows, you can't run a meat packing plant. >> father, we pray for the situation in cargill, by god. because as you bring the moisture, as you bring the rain conditions will change, my god. because it's your rain -- >> katharine hayhoe knows those believers well. she, too, is an evangelical christian, also a rising star of climate science, named this year as one of "time" magazine's "100 most influential people." she and her husband, andrew farley, who's a pastor, teach at texas tech university in lubbock. together, they wrote this book, "a climate for change: global warm