Back to the resource library Earthworks’ Optical Gas Imaging Brings Dangers of VOCs and Methane to Light October 22, 2019 Download See All Related Resources Comments on the Midstream Rulemaking by Colorado Air Quality Control Commission On Inefficient Enclosed Combustion Devices (ECDs) in Colorado CERTIFIED GASLIGHTING: Fact Sheet CERTIFIED GASLIGHTING: How gas certification has gained a policy foothold, even as it fails to prove it can accurately detect emissions Related Content Energy Field Investigations Protecting Climate from Oil & Gas Methane Pollution Pennsylvania