Federal report: World energy consumption to grow 56 percent by 2040


Natural gas, oil and coal will remain the primary energy sources, even as renewables like wind and solar are expanding.

“Renewable energy and nuclear power are the world's fastest-growing energy sources, each increasing by 2.5 percent per year. However, fossil fuels continue to supply almost 80 percent of world energy use through 2040. Natural gas is the fastest-growing fossil fuel in the outlook,” the report states.

Greenhouse gas emissions will keep rising globally, increasing by nearly 50 percent, a level that scientists warn will lead to dangerous climactic changes.

“Given current policies and regulations limiting fossil fuel use, worldwide energy-related carbon dioxide emissions rise from about 31 billion metric tons in 2010 to 36 billion metric tons in 2020 and then to 45 billion metric tons in 2040, a 46-percent increase,” the report states.