Fossil fuel and corporate lobbying groups blocking action on climate change are also fighting labor protections meant to safeguard workers from its intensifying effects. As record-high temperatures kill the workers who grow our food, deliver our packages, and build our homes, industry lobbying has stalled heat safety measures in Congress and at least six states, according to a Lever review.

As a result, most of the nation’s workers still aren’t guaranteed access to water, rest, and shade — the basic precautions needed to fend off dangerous heat stress. Heat exposure could already be responsible for as many as two thousand workplace deaths each year, and research suggests that it is three times as deadly when combined with exposure to air pollution from sources like wildfire smoke.

Business lobbies representing the agriculture, construction, and railroad industries have also opposed state rules protecting outdoor workers from smoke exposure.