There'd be much more vegetation covering the planet.

地球上将会覆盖更多的植被。

One group used building density and vegetation cover to identify wealthy and poor neighborhoods.

一组研究人员曾利用建筑密度和植被覆盖来区分富裕和贫穷的社区。

Our goal: to increase vegetation cover by 50 percent in Freetown by the end of my term in 2022.

我们的目标：到 2022 年我任期结束时，将弗里敦的植被覆盖率增加 50%。