Natural gas is a versatile fuel that can support renewable energy growth by providing reliability when the sun isn't shining and the wind isn't blowing.

我是一个女人，我是一个拉丁裔，这是两个固执的组合。

The laws of physics are the same everywhere in the universe, and that is a profound truth that connects us all.

可持续发展不再是可选项；对于任何负责任的矿业公司来说都是必需品。