Next we head to India, which has set ambitious goals for clean energy.

Prime Minister Narendra Modi has pledged that renewable sources like solar and wind power will meet 50% of India's energy requirements by the end of this decade.

But getting there won't be easy, especially when many residents say the huge windmills are causing problems.

CNN's Kristie Lu Stout has more.

These windmills in the desert are capable of powering millions of homes in India, impacting many people's lives and the environment for good.

But some local herders here in Jaisalmer say that they are against it.

Big companies like the Adani Group and Suzlon, who own many of the turbines, say they are committed to the prosperity of the community, with the goal of supporting India's push for renewable energy.

The wind turbines have made this area one of India's largest onshore wind farms, but it's also on the community's grazing land.

And herders say the construction work is damaging the water sources, crucial for their livestock.

Meanwhile, some environmentalists say the power lines are causing harm to animals, including one on the brink of extinction.