I know that 80% of the energy we consume comes from fossil energy sources.

我知道地球上80%的能源来自化石能源。

The first one is well-known, which is the shift from fossil energy to clean energy.

第一个是众所周知的，从化石能源向清洁能源的转变。

Cheap fossil energy, concentrated by geologic time and pressure in seams of coal or pools of oil, changed all that.

经过地质时间和压力的凝缩，富集于煤层和油田中的廉价化石能源改变了这一切。

Notably, this is what we would expect to seeif we just rely on clean energy becoming cheap enoughto displace fossil energy systems.

值得注意的是，如果我们仅依靠变得足够便宜的清洁能源来取代化石能源系统，这就是我们期望看到的结果。

He is proud that a way has been found here to get rid of CO2, but also to deliver an immense amount of fossil energy to Europe.

他感到自豪的是，在这里找到了一种消除二氧化碳的方法，同时也将大量的化石能源输送到欧洲。

During the mid-transition, the clean energy system and the fossil energy systemare both too small to fulfill all of the energy needs we have, but big enough that they can't really operate without constraining each other.

在转型中期， 清洁能源系统和化石能源系统都太小， 无法满足我们所有的能源需求，但又足够大， 无法在不相互制约的情况下真正运作。