By Bobby Magill, Climate Central.

Critics of the Obama administration’s most sweeping climate policy hailed the U.S. Supreme Court’s decision in February to temporarily block it, saying the ruling on the Clean Power Plan could breathe new life into the flagging coal industry.

But even as those critics await further rulings on whether the plan is constitutional, utilities are already looking far beyond coal — the nation’s largest single source of greenhouse gas emissions driving climate change — and pressing ahead with investments in cleaner forms of energy, including renewable, natural gas and even nuclear power.