Two researchers at American universities have been awarded the Nobel Prize for their work on climate change's role in the world economy. Yale University's William Nordhaus was named for integrating climate change into long term macroeconomic analysis—as the Guardian notes, he is "the founder of environmental economics"—and New York University's Paul Romer was awarded for factoring technological innovation into macroeconomics, per the AP. Romer is the originator of something called "endogenous growth theory," which, as the Wall Street Journal explains, "tries to explain how the pace of technological change can be sped up by choosing policies that promote research, development, and access to better education." They will share the $1.01 million prize.