A Global Context
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The 750-mile active zone between he Pacific and North American plates that runs from San Francisco down to southern California.

When water is too warm coral will eject the algae in their tissues making them turn white. It is a sign of stress and an indicator of poor health and even the death of the coral.

Storms that develop over warm seas and ocean and then move across the surface of the globe that can generate high winds, tidal surges and heavy rain.

Adapting to the challenges of climate change.

A logarithmic scale that measure seismic disturbances from 1 to 10.

Generally refers to any sustained period of cooler weather, but more specifically often used to the period from 2.5 million to 10,000 years ago when permanent ice sheets were created and the weather cooled dramatically.

The growing interdependence across national boundaries of economic flows and transactions.

A storm arising over warm sea water that produces heavy rainfall and punishing winds The terms 'hurricane' and 'cyclone' are also used.

A model of different stages that begins with high birth and death rates, moves through increasing birth rated and declining death rates to low birth rates and long life expectancy.

A seasonal wind in South East Asia that blows from land to sea in October to May (dry monsoon ) and from sea to land on May to September bringing rain (wet monsoon).

The economic and political alliance of most European countries.

The amount of land required to support human activities.

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