Associated Press: California’s worst drought in decades is forcing the state’s cattle ranchers to downsize their herds because two years of poor rainfall have ravaged millions of acres of rangeland used to feed their cows and calves. The parched, yellow pastures on Joe Gonzales’ cattle ranch attest to the severity of a dry spell that is devastating the economic fortunes of many of the state’s beef producers. Gonzales, who normally runs 500 cows on his 2,000-acre spread about 30 miles south of …