Student worksheet 2
*Cough, cough* It sure is smoggy over Highway 401!

(Measuring the environmental impacts)

Let's extract some data from Section 1.2, Transportation's environmental impacts.

Find 1.2.2, Living in a greenhouse (page 15). In the online version, scroll down about one third of the page. This section is located just above Text table 1.5.

There is a lot to digest here, so to help you sort out what we will want to remember, fill in the information below:

• occurring greenhouse gases help regulate the planet's climate by trapping solar energy which warms the earth's surface.
  
  
• In 2004, transportation accounted for % of total greenhouse gas emissions.
  
  
• From 1990 to 2004, these transportation emissions rose %, or almost megatonnes. Our was the main factor.
  
  
• SUVs, pickups and vans have grown in popularity. From 2000 to 2005, the fleet of light automobiles by 1%, while the number of light trucks 26%. In 2005, average fuel efficiency for cars was L/100 km; L/100km for pickups, and L/100 km for vans.