Billings Gazette: A majority of Montana voters believe global warming will produce adverse effects, and they are willing to make personal sacrifices to slow the warming, a Gazette State Poll shows. The poll of 625 Montana registered voters found that 62 percent felt that global warming will result in adverse effects, with 30 percent predicting many adverse effects and 32 percent anticipating some adverse impacts. The two totals were added together to obtain the 62 percent. Thirty-three percent …