Global Warming Reading

Please read this excerpt from the book Hot, Flat and Crowded then complete the following questions:

1. What is the name of the group of scientists researching climate change?

2. How much CO2 was typically in the atmosphere before the industrial revolution vs now?

3. How much more CO2 will be added over the next 50-100 years?

4. Over the past 500,000 years what happens to temperature when CO2 levels in the atmosphere increase?

5. What two sources are scientists 90% certain are responsible for the temperature increases we've seen over the last 100 years?