The world is full of signs and wonders that come, and go, and if you are lucky you might catch the tail of one as it flies past.

Without models, we would be wandering in the dark when it comes to predicting climate change.

一个破坏其土壤的国家是在自我毁灭。

我们成功的真正标准是我们如何改善全球健康结果。

最优雅的数学证明是那些以简单揭示真理的证明。

Sustainability isn't just about planting trees—it's about planting the right trees in the right places, for the right reasons.