Read this interview with NASA's Dr. Gavin Schmidt, who answers five of the most common questions about climate change that he has encountered. As you watch, listen for answers to questions that you or your students still have about climate change. Take note of how Dr. Schmidt refers to "averages" and "decades-long trends" while referencing data as the basis for his and his colleagues' assumptions.
If you still have some unanswered questions about climate change there are several global climate change lessons from PBS and NASA that you can explore to learn more about the data collected by scientists that are driving predictions-and stimulating controversies-in this very complex science.
You may also wish to explore the NASA's Global Climate Change website for the answers to many questions and issues about climate change.