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With these groundbreaking insights, we can scale up mobile sensing technology to track and map pollutants in cities everywhere.

As federal and state agencies failed to monitor air pollution after Hurricane Harvey, we measured and mapped a leaking carcinogen in real time.

This is how we rebuild from catastrophic storms such as Harvey, Irma and Maria, with lower future risk for people and our economy.

The EPA chief is quietly and systematically tearing down policies that protect the health and safety of all Americans.

Hurricanes Harvey and Irma should serve as a collective wake-up call for policymakers who rush to respond to every disaster, but plan for none.

The push to return America to its toxic past may accelerate after Trump nominated Michael Dourson to run the EPA's chemical safety program.

Refusing to discuss climate change during catastrophic storms is like telling people to shut up about germs during a flu epidemic.

It’s as if Earth is running a controlled scientific experiment to show us, with terrifying detail, what happens when rising global temperatures fuel powerful storms.

Programs that help communities deal with hurricanes are on the chopping block as another catastrophic storm approaches our coast.

The president's reckless order to rescind flood standards requires congressional lawmakers to step in – and fast.

As global temperatures rise, storms are becoming more destructive and costly.

If the EPA chief and his legal team continue to make misleading arguments, they may suffer more setbacks.

In a country hobbled by racism we must address civil rights to be able to make true environmental progress.

Imagine what $4.5 billion annually could do for Appalachia if we spent it to really help this economically struggling region.

This is an attempt to confuse the public and sow doubt about an already-settled issue.

People with deep connections to polluters are being handpicked to run the agency charged with protecting American health.

The United States is losing respect overseas, but most Americans don't support Trump's destructive policies.

If economic growth and jobs are on the agenda, saving Louisiana’s coast should be a priority.

How will America’s natural gas industry operate 5-10-20 years down the line in an increasingly carbon-constrained world? The administration forgot to ask.

The impact investing sector is expected to grow tenfold from $77 billion to about $700 billion by 2020.

This could set in motion chain reactions that further destabilize the ice shelf and surrounding glaciers, contributing to global sea level rise.

Thousands of Americans at this federal agency go to work every day to keep people out of the doctor’s office.

State and local leaders understand that by investing in clean energy and cutting emissions, we're betting on the future. What could possibly be more American?

Congressional voting patterns are remarkable considering that midterm elections are just a year away.

Pruitt has ended the important transparency practice of sharing senior policy leaders’ schedules, a practice which has a long bipartisan history at EPA.