[11] On November 5, 2007, Environment America separated from the state Public Interest Research Groups (PIRG), bringing with it the organization's national environmental advocacy program.

Its areas of interest include the use of renewable energy sources,[17] climate change, air pollution, fossil fuel dependency,[18] environmental conservation,[19] and offshore drilling.

Environment America publishes an annual scorecard of members of the U.S. Congress based on how they voted on environmental issues in that year's session.

[34][35] In 2008 and 2012, it joined the Sierra Club, League of Conservation Voters and Clean Water Action in endorsing Barack Obama’s reelection to office.

[17][44] Environment California supported a law that Governor Jerry Brown signed in 2011 which mandated that 33% of the state's energy must come from renewable sources by 2020, an increase from the previous requirement of 20%.

[54] PennEnvironment has released several reports that analyze environmental concerns in Pennsylvania including counties' recycling fees,[55] the dumping of toxic chemicals by industrial facilities into the state’s waterways,[56] and the building of roads and logging in the Allegheny National Forest.

In 2011, PennEnvironment condemned the government's decision to reject stricter air pollution regulations that would diminish ground-level ozone, the main component of harmful smog.