North America
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Economies that heavily dependent on the exploitation of primary commodities such as oil and gas.

Rapid growth of algae in lakes often due to the amount of run off high in phosphates and nitrogen from farms and lawns.

The downsides of a heavy reliance on one or more primary commodities such as oil, that include corruption, wildly fluctuating government revenues and stunted economic development

A trade union between Canada, Mexico and the USA.

A straight linedm heavy wind storm that can develop and move quickly.

A country in which the city and the state are essentially one and the same.

A strong westerly wind several miles the globe. The shifting nature of jet streams is responsible for changing weather patterns.

An area where waters drains from and flows into a river or a number of tributaries.

A segment of the economy that is made up of jobs and services performed as opposed to goods produced.

A major sailing route that linked Europe, Africa and the New World in the transport of goods and slaves.

Areas of environmental contamination. Some of the most polluted sites in the US designated for clean up.

In general refers to any society dominated by settlers from elsewhere. More specifically refers to societies such as the Australia, Canada, and US that were populated by settlers form Europe.

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