While fossil fuels—coal, oil, gas—still generate roughly 85 percent of the world's energy supply, it's clearer than ever that future belongs to renewable sources such as wind and solar.
虽然化石燃料——煤炭、石油、天然气——仍占世界能源供应的大约85%，但比以往任何时候都更清楚的是，未来属于可再生能源，如风能和太阳能。
But the unavoidable reality is that fossil fuels like coal are deeply embedded in our energy system, and we'll have to use them for years.
但是，不可回避的事实是煤这样的化石燃料深深扎根我们的能源体系，我们将不得不使用他们很多年。
Last month the International Energy Agency predicted global demand for coal would increase by 1.9% a year until 2015, outpacing all other fossil fuels except natural gas.
上个月国际能源机构预测2015年之前全球煤炭需求量将以每年1.9%的速度增长，其速度将超过除天然气以外的所有其他矿物燃料。
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