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Explanation:
The presence of small amounts of heat-trapping greenhouse gases in the atmosphere warms Earth's surface, resulting in a planet that sustains liquid water and life. Changes in climate conditions can affect the health and function of ecosystems and the survival of entire species.
Answer:
They found four key changes: the unprecedented homogenization of species worldwide through human-instigated species invasions, the growing interaction between the biosphere - the sum of all Earth's ecosystems - and technology; the total domination of one species on land and water; and human impact on evolution.
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