Franken pointed out that 98 out of 100 scientist say climate change is real and needs to be dealt with. He said people outside Washington, D.C., understand this.

“Many of my other colleagues I suspect don’t talk about climate change because it would require making some difficult choices,” Franken said. “If we don’t act now it will be far more costly later.”

Franken said inaction would cost the federal government more because of Hurricane recoveries, wild fires, sea levels rising and other natural disasters caused by global climate change.

“We need to start by having a conversation about climate change,” Franken said. “It would be irresponsible to avoid the conversation just because it is uncomfortable.”

Frank said he is expecting his first grandchild and that he does not want to pass this environmental problem on to future generations.

“We cannot leave this issue to future generations,” Franken said. “I don’t want to tell [my grandson] that we compromised our moral integrity.”

Franken is up for reelection in 2014.