Democratic presidential candidate Andrew Yang says the United States may have to eliminate private car ownership to combat climate change.

During MSNBC's climate forum at Georgetown University Thursday morning, Yang told host Ali Velshi, "we might not own our own cars" by 2050 to wean the United States economy off of fossil fuels, describing private car ownership as "really inefficient and bad for the environment."

Privately owned cars would be replaced by a "constant roving fleet of electric cars."

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"You have this ability to envision the future, right, with your proposals on universal basic income," Velshi said. "You've played the whole chess game out and you see what it looks like on the other end. Play the chess game out on climate change.

"What does the world look like to you in 2050? What physically do you think we will do differently than we do today that will result in us fighting climate change?"

Yang replied, "Well, I mentioned before that we might not own our own cars. Our current car ownership and usage model is really inefficient and bad for the environment."

"What we're really selling is not the car, it's mobility," he explained. "So, if you have mobility that's then tied into a much more, if you had like, for example, this constant roving fleet of electric cars that you would just order up, then you could diminish the impact of ground transportation on our environment very, very quickly."

Yang's climate plan calls for nearly $5 trillion in spending over the next 20 years. The proposal includes embracing the impacts of climate change, and a zero emissions standard for all new cars by 2030.