# Chapter 1. Area Graphs

## Part A: Background

Graphing Tutorial
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In this tutorial, we are going to examine one aspect of climate change, carbon dioxide levels. We will look at levels of CO2 in countries and various world regions for the past 50 years.

## Part B: Examine the Data Set

Let’s look at some of the climate data from The World Bank at http://data.worldbank.org/indicator/EN.ATM.CO2E.PC . The data given here represent per capita CO2 emissions (in metric tons) in various countries around the world. Create a graph that appropriately represents these data. The following sample table represents just a few countries for which data is available.

Per Capita CO2 Emissions (metric tons)
Year 2005 2006 2007 2008 2009
United States 19.7 19.2 18.3 18.6 17.3
China 4.4 4.9 5.2 5.3 5.8
India 1.3 1.3 1.4 1.5 1.7
Japan 9.7 9.6 9.8 9.5 8.6
Table : Source: The World Bank, http://data.worldbank.org/indicator/EN.ATM.CO2E.PC

Correct.
Incorrect.

### Question 1.2

dDUfMrF1pC5SGfCMzTfgZCzRUUe2FNspw/W0ejGNCImY097vYBEPy3xl9/GxMymhWKGNVcgiGiX+XKLwu9k/9VUEgv8+GH7HDV+vMUWNAJ42LNFCC3CpnzlrODx2AZ8VDv9+o2ESPAunFLvhYkMBJhueslS2PeAB+9OCvx2AgZCUDT1Q0zzHd4Y8WlIrpF9PNaQnTLH9piS3TWGvrFz3CGu6k4pdNbghHMF6+8PafV8WbB9AbI0yqaa4K2VdVFdrxFss1oPtQCUXM6Fi2kV0zcrpq0dZkg1U/JztNGb5YSQSEo8jiaUmFY+Wira+rNsmOYgiC+NmeTLBeTac0O2wQ6x60Xsf7hAfEIKUdjzPD0+uXVHEXDMX5PpEl7nAqow7pZcVBZ0SWJEyALkgTpl7groFquX3co+wcZqdE8WUFjS2WKskd80gY8XhO5J0ENTEcfoYjVSezIRkExchOcmT+zFdZhxxCVfB/Zxpk48+ILLMhtdkHLQEvhp7+T630Ij0EkL1sLS/HO748UhOfwAu7u87pMuHALbqNtcsNTij45bBIaQ7EO9fqPXglh8IGC5hSEEHTQdP+kU6Jcxm5HYBcRTcP2oOJe607UO/Wkdm+WZd/tktel7SBYDR+ZXil3WOGHgmjWWVc35TUp+TRsChL6PbdGhYDAvjKiUkeBaqKPKQubcuaHQew8Y+IT2u14hNSAn95JmKxmgCpaBU65oDuoX5vU50YApqOSFNmpvk0ww/ZT1GwxSx9Hx2HU6zIpg8yFGedUvdLex7ioRhF5I3WQGlVXbSWfL6SDbokMpE78j/dueHjzlDGakVti7x/wMmO6QsM8jQDsYjlPRjU0PCdVqAEKCepLXlzhzWOHmdFs3OX04OCW+oRwH4Kxegb7ownmumiuZTKKNmtqNhAg7WcJqjzqtsE9v6SrDXi9s16nJTXgBrQ6uxNGDiJZTTdEeBofEeCYK9jzefArZt8mxIz4iczLesyAfAE1M59cKzWvIcqpXFkxEt8aHEMsEh73re/PR7/R78uBtS6ILVfJ6Q0cQYq18AzMCyhcDINA==

Correct.
Incorrect.

## Part C: Build the Graph

Instructions: Create a graph below. Begin by giving it a relevant title, such as "CO2 Emissions compared". Label the X axis as “Year”, and the the Y axis as "Per Capital CO2 Emissions (metric tons)". Label the Y axis as "Country."

Next, input the actual data into the graph. Each group of data (U.S, China, India, Japan) will be graphed as a line. Students must graph the line with the lowest overall numbers first, followed by the next lowest and so on. The area between each line will then be filled in to create the area graph.

Per Capita CO2 Emissions (metric tons)
Year 2005 2006 2007 2008 2009
United States 19.7 19.2 18.3 18.6 17.3
China 4.4 4.9 5.2 5.3 5.8
India 1.3 1.3 1.4 1.5 1.7
Japan 9.7 9.6 9.8 9.5 8.6
Table : Source: The World Bank, http://data.worldbank.org/indicator/EN.ATM.CO2E.PC

Correct.
Incorrect.

## Part D: Apply Skills

### Question 1.5

Correct. CO2 has increased in each world region since 1960.
Incorrect.