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The EPA proposes gutting its greenhouse gas rules. Here's what it means for cars and pollution

03:37
In an aerial view, cars travel along Interstate 80 in Berkeley, Calif., on January 16, 2024. The regulations that require automakers to build more efficient, cleaner vehicles are being loosened under the Trump administration. (Getty Images North America)
In an aerial view, cars travel along Interstate 80 in Berkeley, Calif., on January 16, 2024. The regulations that require automakers to build more efficient, cleaner vehicles are being loosened under the Trump administration. (Getty Images North America)

This article was originally published on July 29, 2025.

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