Trump’s repeal of landmark Obama-era climate rule: four key takeaways

Environmental groups say cynical and devastating' reversal of endangerment finding has grave implications

The Trump administration has dismantled the basis for all US climate regulations, in its most confrontational anti-environment move yet.

The 2009 endangerment finding determined that greenhouse gases threaten public health and welfare and should therefore be controlled by the Environmental Protection Agency (EPA). By revoking it on Thursday, officials eliminated the legal foundation enabling the government to control planet-heating pollution.