The Trump administration plans to scrap a clean energy plan introduced under former President Barack Obama.
The US Environmental Protection Agency will repeal the Clean Power Plan - which was designed to reduce greenhous gas emissions from power plants. US officials say repealing it will save money in compliance costs.
Environmental groups say the move adds to uncertainty for generators wanting to invest in renewable energy.
Here's Liz Perera from the Sierra Club:
IN: "The clean energy ..."
OUT: ""...100 per cent clean energy"
DUR: 0"23
IN: "The investments..."
OUT: ""...not economical"
DUR: 0"16