Blitzkrieg has hit protections in place for land, oceans, forests and wildlife, and will worsen the climate crisis

Trump has launched an unprecedented assault upon the environment, instigating 145 actions to undo rules protecting clean air, water and a livable climate in this administration’s first 100 days – more rollbacks than were completed in Trump’s entire first term as US president.

Trump’s blitzkrieg has hit almost every major policy to shield Americans from toxic pollution, curb the worsening impacts of the climate crisis and protect landscapes, oceans, forests and imperiled wildlife.

In all, the second Trump administration has launched 145 actions – a dizzying rate of more than one a day since the 20 January inauguration – to repeal or weaken environmental rules and escalate the use of planet-heating fossil fuels, a Guardian analysis has found. The total is derived from research by Columbia Law School, Harvard Law School and administration announcements.