White House: No choice but to act now on climate change

The Obama administration released a comprehensive new report Tuesday in an attempt to justify its controversial actions on climate change, and also will roll out new executive moves to reduce greenhouse-gas emissions.
The study shows the potential damages to the planet by delaying steps — such as harsh new limits on carbon emissions from power plants — to tackle global warming.
“First of all, we know way more than enough to justify acting today. Second, delaying action will increase the costs,” said Jason Furman, chairman of the White...