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Scientists created the world's whitest paint. It could eliminate the need for air conditioning.

The whitest paint in the world has been created in a lab at Purdue University, a paint so white that it could eventually reduce or even eliminate the need for air conditioning, scientists say.

The paint has now made it into the Guinness World Records book as the whitest ever made.

So why did the scientists create such a paint? It turns out that breaking a world record wasn't the goal of the researchers: Curbing global warming was.

“When we started this project about seven years ago, we had saving energy and fighting climate change in mind,” said Xiulin Ruan, a professor of mechanical engineering at Purdue, in a statement.

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The idea was to make a paint that would reflect sunlight away from a building, researchers said.

Xiulin Ruan, a Purdue University professor of mechanical engineering, and his students have created the whitest paint on record.
Xiulin Ruan, a Purdue University professor of mechanical engineering, and his students have created the whitest paint on record.

Making this paint really reflective, however, also made it really white, according to Purdue University. The paint reflects 98.1% of solar radiation while also emitting infrared heat. Because the paint absorbs less heat from the sun than it emits, a surface coated with this paint is cooled below the surrounding temperature without consuming power.