Bloomberg: With a feisty tone and a touch of aggravation, President Barack Obama on Saturday laid into Republicans who question the science of climate change and urged graduating college students to take on global warming as a cause.
A few weeks after unveiling rules to limit carbon emissions from power plants, Obama used a commencement address for the University of California, Irvine, to rally support from young people and slam opponents for denying that climate change is real.
"When President Kennedy...