WASHINGTON (AP) — House Democrats on Tuesday unveiled a plan to address climate change that would set a goal of net-zero greenhouse gas emissions by 2050, while pushing renewable energy such as wind and solar power and addressing environmental contamination that disproportionately harms low-income and minority communities.

The election-year plan backed by House Speaker Nancy Pelosi and other leaders is less ambitious than a sweeping Green New Deal that a group of progressive Democrats outlined last year to combat climate change and create thousands of jobs in renewable energy.

The Green New De...