What a Three Amigos clean energy deal could look like
At minimum, the next era of co-operation should signal strong aspirations on pricing carbon dioxide.
Prime Minister Justin Trudeau, U.S. President Barack Obama, and Mexican President Enrique Peña Nieto chat before an APEC meeting in Manila, Philippines, Nov. 19, 2015. They're set to meet again June 29 in Ottawa.
White House photograph by Pete Souza