The real question is not whether climate is changing, but how fast and how much we can adapt.
配额只是一个数字,除非我们坚定地执行它。
学习是系统中产生的任何变化,这些变化或多或少会永久性地改变其适应环境的能力。
The weight of evidence for an extraordinary claim must be proportioned to its strangeness.
过去总是紧张的,未来是完美的。