Which of the following best describes radiative forcers?

Current atmospheric CO₂ levels are at 390 parts per million (ppm). What is the upper limit of CO₂ predicted by most scientists that we can live with and still avoid substantial negative effects?

Scientists have documented that climate change is a normal process. What is the PRIMARY reason that the current warming trend is so alarming to those same scientists?

According to some, the current increase in average global temperature is due to the “wobble” effect. If this were true, which of the following would also be true?

Which of the following is NOT a mitigation strategy for climate change?

Which of the following factors tend to increase the albedo effect and contribute to cooling?

Compare and contrast the major radiative forcers, including both those that are natural and those that are humanmade. Overall, which forcers are currently having the most effect on global climate? Are they natural or produced by human actions?

What is the IPCC? Why is it important?

Describe greenhouse gases. What is their function? What human actions have led to an increase in the amount of greenhouse gases in the atmosphere? What has been the result?

Describe the types of problems that global climate change will cause for Canada. Of the impacts given in Infographic 22.11, which do you feel is likely to cause the biggest problem? Why?

In the winter of 2010, the northeastern part of the United States had several large snowstorms that resulted in record high snowfall amounts. How does this weather fit in with the notion of global climate change?

Describe the process of facilitation and its goal. Why do some scientists claim that facilitation is a bad idea?