"The bulk of the time was with the president-elect, Donald Trump. I found it an extremely interesting conversation, and to be continued," Mr Gore said.
Mr Trump has been stocking his administration with conservative ideologues, and many of the possible names for his environmental posts are sceptical of current policy. If Ms Trump pushes the issue and Mr Gore continues his "extremely interesting conversation" with the president, however, this could become a test of how willing President Trump is to cross party orthodoxy.
A free-agent president — beholden to neither party and willing to strike deals according to his own fancy — may be exactly what his voters wanted and what Washington insiders fear.