Hawaii is one of more than 20 states now suing the environmental protection agency over a ruling undercutting efforts to reduce greenhouse gas emissions.

The rule is designed to 'make good' on Trump's campaign promise to revive the nation's coal industry. 

It also eliminates what had been an aggressive effort to reduce the country's carbon footprint. 

 However, the EPA is defending the revision saying, it believes it will be upheld in the courts.

"The affordable clean energy rule. Ace gives states the regulatory certainty they need to continue to reduce emissions and provide affordable and reliable energy for all Americans," EPA Administrator Andrew Wheeler said.

According to the EPA the rule could result in 1,400 more premature deaths by 2030.