During the course of a conference on the environment, a big question is asked — how do we reverse global warming on a community level? The question is broadcast over the Internet, encouraging people to give their thoughts such that a collective solution could be drawn. This is an example of crowdsourcing.

Crowdsourcing is the practice of getting inputs from other people to solve a problem or achieve a goal. These inputs are usually in the form of ideas, opinions, or information. But they may also include goods or services.

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