Beaten, forced off their land, cheated out of money and even falsely imprisoned — farmers in China say they are paying a heavy price as authorities rush to deliver on ambitious pledges to ramp up national green energy output. China has vowed that next year’s Winter Olympics are to be the first Games to be run entirely on wind and solar energy, and it has built scores of facilities to increase capacity — but critics say that ordinary people are being exploited by “land grabs” in the process. In a hamlet near Beijing, the Long family — who say they have lost