President Barack Obama used his second inaugural address to highlight his stance on climate change.
"We will respond to the threat of climate change," Obama said.
The president warned in his Monday address that failure to respond to climate change "would betray our children and future generations. Some may still deny the overwhelming judgment of science, but none can avoid the devastating impact of raging fires, and crippling drought, and more powerful storms."
OutFront tonight: Erick Erickson, CNN contributor and editor of the conservative blog redstate.com and John Avlon.