A Global Context
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A global change in mortality and fertility that occurred around 1800, but also refers to the four phases of transition.

A large sea wave resulting from a tectonic shift.

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.

A phenomenon in which areas that typically received greater amounts of precipitation become drier and take on characteristics more prevalent in desert climates.

The economic and political alliance of most European countries.

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.

Occurs when birth rates fall to a point that requires less investment in the very young, but before more investment is required on the elderly, and results in the relative and absolute increase of younger, more productive workers.

The global exchange of plants and animals unique to either the Old World or the New World.

The ability to meet the needs of the present without destroying the needs of the future.

Adapting to the challenges of climate change.

A change in climate that takes different forms across the globe.

The amount of land required to support human activities.

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