Lessons 4: How Do Changes in the Concentration of Carbon Dioxide Affect Climate?
Earth's atmosphere consists of many gases. Carbon dioxide currently makes up less than 1% of the gas mixture. Plants require carbon dioxide to photosynthesize, but can too much of this gas be harmful?
Doing the science
- Start the Weather simulation
- Click the "Change Factors" button.
- Select "Carbon Dioxide" from the "Choose Factor" pull-down menu.
- Select "+15%" from the "0%" pull-down menu. Click the "Apply change" button.
- Click the "Spin" button.
- A red icon indicates an increase in temperature of 0.1 ºF. A blue icon indicates a decrease in temperature of 0.1 ºF. The green dot in the graph at the top of the screen displays the net change in temperature over the 30-year period. Record your data in the graph below.
- To speed the spin rate up, click on the green "Faster" icon next to the "Spin" button.
- Repeat steps 5 and 6 until you complete a total of 20 spins.
- On a piece of graph paper, copy the graph below and record your data in it.