Grade level: 4th – 5th

Skills: Bar graph

Related environmental issues: Climate change

Area level: National

The United States has attempted to reduce carbon dioxide emissions to fight climate change. The line graph below shows how much carbon dioxide (CO2) was emitted from the United States between 2009 and 2013.

1.Which year did the United States had the greatest amount of CO2 emissions?

2.Between which years did the amount of CO2 emission decrease about 0.1 billion tons?

3.In which two years did the United States have the same amount of CO2 emissions?

4.Between which years the amount of CO2 emissions changed the most?

Source: Trends in Global CO2 emissions 2014 Repor, PBL Netherlands Environmental Assessment Agency

Note) The emissions increase in 2013 was largely due to an increase of coal use over natural gas.

———————————————————————————–

Answer keys

1. 2010
2. between 2011 and 2012
3. 2009 and 2013
4. 2011 and 2012