US President Donald Trump has pulled the trigger on a comeback for coal after rolling back legislation which limits the greenhouse gas emissions from its coal-fired power plants.

The President has kept his election pledge to end the “war on coal” by overturning the climate change rules put in place by his predecessor.

In their place are new rules which could save around 300 US coal-fired plants by allowing each state to decide what, if any, restrictions are placed on coal generators.

The President appeared at a political rally in the coal-rich state of West Virginia to confirm that the Environmental Protection Agency (EPA) will send former President Barack Obama’s ‘clean power plan’ up in smoke.