7/27/2019 GR45

1/9

7/27/2019 GR45

2/9

7/27/2019 GR45

3/9

7/27/2019 GR45

4/9

7/27/2019 GR45

5/9

7/27/2019 GR45

6/9

7/27/2019 GR45

7/9

http://www.scientificamerican.com/topic.cfm?id=fossil-fuelshttp://www.scientificamerican.com/topic.cfm?id=transportationhttp://www.scientificamerican.com/topic.cfm?id=global-warming-and-climate-change

7/27/2019 GR45

8/9

7/27/2019 GR45

9/9