Brief History of Global Warming Lecture

This is the first lecture from the Modern Scholar course Global Warming, Global Threat taught by Professor Michael B. McElroy.

In this lecture professor Michael B. McElroy introduces the worldwide experiment we have embarked on through the increase in global temperature. He covers some of the basics of global warming such as the greenhouse effect, the gases that contribute to global warming, and what creates the climate on Earth. He then puts humanity and global warming in the context of Earth's entire history going back 4.5 billion years ago. He uses a calendar year as a reference for Earth's history and places global warming at the last few seconds before midnight on December 31st. It's an excellent introductory lecture for placing global warming in global history.

Global Warming in Earth's History

The issue of global warming has captured the attention of people worldwide over the past 20 years. Scientists studying the effects of human activities on the global environment today believe we are changing the climate of the planet on a global basis. We are warming the Earth, but are we risking the health of our planet? What are the negative consequences of these actions? This course will discuss the complex interdependent systems that regulate the environment of Earth. Also, this course offers listeners a comprehensive overview of the essential environmental issues of our time.

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