Renewables, including biofuels, are forecast to make up 10 percent and nuclear the rest.Because of such dependence on fossil fuels, carbon dioxide emissions from energy use are expected to grow by 70 percent, the O.E.C.D. said, which will help drive up the global average temperature by 3 to 6 degrees Celsius by 2100 ??? exceeding the warming limit of within 2 degrees agreed to by international bod