The London art installation was done by British artist and underwater sculptor.

The name of the artist is Jason deCaires Taylor and the artwork is sculptures of four horsemen. The sculptures are placed such that they can only be viewed in their entirety for two hours either when the tide is low on river Thames.

The installation was conceived by the artist to make viewers think of climate change whenever they saw the sculptures.

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The sculptures are of two fat businessmen and two children. The children are the future generation who will have to rise up against ecological disasters in futures.

The humans all sit on horses whose heads are oil pumps.