Politics www.usatoday.com Obama calls mayors new leaders on climate change in Trump era Former president calls Trump's decision to withdraw from Paris Agreement "difficult to defend."
Politics abcnews.go.com Obama expected to address mayors' summit on climate change Former President Barack Obama is expected to address a gathering of mayors from around the globe convening in Chicago to discuss climate change after President Donald Trump said the U.S. will pull out of the Paris climate accord.
Wanted: Aggressive Lake Michigan protection The city of Chicago filed its intent to sue U.S. Steel for releasing too much chromium into Lake Michigan.
As Biden prepares to block the sale of U.S. Steel to Nippon Steel, pollution concerns persist in Pennsylvania
A Pennsylvania fracking company with more than 2,000 environmental violations selected for federal environmental justice funding
