Improving the U.S. transmission grid could be the key to reducing the pollution that's heating the planet. The grid is old and needs updating to truly access the benefit of renewables, but doing so is expensive and it takes forever. So, what is being done and what challenges is such a rollout facing?
Host Peter O'Dowd speaks to NPR climate solutions reporter Julia Simon to find out.
This segment aired on August 9, 2023.