"Mine, Baby, Mine!" Burgum wrote on X, adding that Coalie will act as a "spokesperson" for Trump's "American Energy Dominance Agenda".

Climate activists criticized the latest attempt by the administration to boost the image of the dirtiest fossil fuel despite its effects on the planet and public health, with one critic describing it as "one of the most heinous ways to produce energy that our world has ever seen"."

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"I have a little standing order in the White House," Trump said last year during a speech to the United Nations. "Never use the word coal'. Only use the words clean, beautiful coal'. Sounds much better, doesn't it?"

Despite this branding, and the attempt to make a lump of coal appear cute, coal remains the dirtiest of fossil fuels, being a major driver of the climate crisis and a source of toxic, deadly air pollution to nearby communities when burned.

Coal miners have long struggled with adverse health affects, such as black lung disease, after inhaling coal dust."