In his State of the Union address on January 24, President Obama largely avoided the topic of climate change. He talked about it once, in passing, as a topic on which "the differences in this chamber may be too deep" to enact new legislation. Its less-controversial cousin, "energy," on the other hand, got a whopping 23 mentions as an area where Republicans and Democrats should be able to find agreement.
It became clear well before that address that the president and his administration don't think that climate change is an issue that will carry them to a second term. In his public events following the speech, he's also focused on clean energy while avoiding the other "c" word.