We have done a great deal for renewable energy sources.

At present about 17% of China's energy comes from renewable sources.

But that's a renewable source of energy we need to keep in line.

Finally, we have to increase support for renewable sources of energy.

It would be better to focus on renewable energy sources instead.

That's why our focus is on renewable sources of energy.

Last year, 10.7 percent of California's power came from renewable sources.

More renewable energy sources are a good step in the right direction.

We need to make more efforts to develop renewable energy sources.

This technology should be given the same political status as other renewable energy sources.