Environmental Challenges: USA and Canada

Turn to page 141

What is another name for a climate scientist?

Temperatures worldwide are rising. Climatologists believe this is due to:

Greenhouse gasses are produced by:

Ice sheets are melting and sea levels are rising threatening coastal communities in which countries?

The Canadian Shield has been the site of many minerals for more than ____ years.

In Alberta, mining ____ ____ has polluted ground water and destroyed thousands of acres of forest.

The Colorado River flows about 1,450 miles from the Rocky Mountains to the Gulf of Mexico. Because of redirected water by certain states, the river has been reduced to a _________.

Americans and Canadians are both working to protect the environment. Some are seeking to reduce ________ ______ that could cause climate change.

Look at Analyze Images on page 141.

What is the satellite image showing?

Look at Analyze Images on page 141.

Is the population more dense in the northeast, southeast, northwest, or south west?