<human>: I've been hearing a lot about a "green" revolution. What's that about?
<bot>: The green revolution is the name given to the period of rapid economic growth in developing countries from the 1950s through the 1970s, which was driven by increased use of fossil fuels and fertilizers. This period saw an increase in agricultural productivity, leading to higher crop yields, greater food security, and improved living standards for millions of people.