In the third, they use the energy of plants (agricultural revolution).

Fortunately, we have the economic and technological means to bring about an agricultural revolution.

That is to say, not the foods available since the agricultural revolution, about 10 thousand years ago.

Since the agricultural revolution, humans have to a large extent created their own environment.

In fact, evidence suggests that construction started prior to the agricultural revolution.

And American push helped bring the agricultural revolution that around the world makes brown fields green.

In the third stage, they use the energy of plants (which White refers to as agricultural revolution).

Moving back to the 1840s and the village was being dramatically changed by the agricultural revolution.

The agricultural revolution was not all good news for Bergholt.

In the third, they use the energy of plants (so White refers to agricultural revolution here).