Fighting climate change is only one reason to switch to renewable energy sources like solar and wind power. In many U.S. states, renewable energy infrastructure is also a powerful investment in public health.

For example, across 10 U.S. Rust Belt states policies known as renewable portfolio standards will require an average of 13% of electricity to be generated from renewable sources by 2030.

Building out that renewable infrastructure will cost $3.5 billion and yield $2.8 billion in savings from avoided climate change impacts, according to an analysis published August 12 in in Environmental Research Letters. But it will also result in $4.7 billion in health benefits from avoided medical bills and lost wages.