Mark Z. Jacobson, professor of civil and environmental engineering at Stanford University and director of its Atmosphere and Energy Program says producing all new energy with wind power, solar power, and hydropower by 2030 is feasible and existing energy supply arrangements could be replaced by 2050. Barriers to implementing the renewable energy plan are seen to be "primarily social and political, not technological or economic". Jacobson says that energy costs with a wind, solar, water system should be similar to today's energy costs. COUNT 4
QSN1 Who is a professor of civil and environmental engineering at Stanford University? ANS1 Mark Z. Jacobson QSN2 What is a barrier to implementing the renewable energy plan? ANS2 social and political QSN3 Who stated that energy costs with a wind, solar, water system should be similar to today's energy costs? ANS3 Mark Z. Jacobson QSN4 Jacobson says producing all new energy with wind power, solar power and hydropower is feasible by what year? ANS4 2030