World leaders open Paris climate talks
LE BOURGET, France -- The biggest political moment in climate change history has arrived. Four years of planning, debating and hyping U.N. climate change negotiations came to a head this morning in this tightly guarded tent city on the outskirts of Paris as French President François Hollande officially opened the talks before 140 heads of state and thousands of others eager to see a new global accord.
Experts say accurate Clean Power Plan cost estimate won't arrive for years
Interest groups recently have rolled out a proliferating number of price tags for the Obama administration's new limits on power plant carbon emissions. The estimates are often vastly different -- some call the rule affordable; others determine it will be costly. Nonetheless, they are already ammunition for politicians debating the Clean Power Plan on both sides of the aisle.