From Colorado to Virginia, environmental groups are challenging legal barriers that prevent scientists and communities from seeing the full picture of fossil fuel harms.

Secret chemicals. A hush-hush atmosphere surrounding airborne pollution. Non-disclosure agreements preventing open discussion of industry impacts.

Some of the same transparency issues that reared their heads during the early days of fracking a decade ago are making a resurgence at the state and local level across the U.S., this time with new twists under the current federal government.

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