What was the goal of the Green Revolution?

Related questions

• In what year was the first Earth Day observed?
• How does your ecological footprint (or carbon footprint) contribute to global change?
• What is one change humans can make to help solve ecological problems?
• Why does my ecological footprint change depending which country I live in?
• Can anyone think of some historic (or even modern) environment or climate change debates?
• What was the purpose of the first Earth Day event on April 22, 1970?
• Who organized the first and second Earth Days?
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• What are the concerns of the environmental justice movement?