Obama suggests that trace amounts of carbon dioxide will "smother our planet"

Obama pushes Kerry's climate [swindle] bill

“Without a major change in our energy policy, our dependence on oil means that we will continue to send billions of dollars of our hard-earned wealth to other countries every month – including countries in dangerous and unstable regions,” Obama said. “In other words, our continued dependence on fossil fuels will jeopardize our national security. It will smother our planet. And it will continue to put our economy and our environment at risk.”

Obama on the climate bill: “We will get it done” | Grist

Another interesting aspect: At no point does he mention "climate change" or "global warming." "Smother the planet" is as close as he gets. Obviously he's listening to the messaging folks.

PostPartisan - Obama ["forgets" the word "dioxide"]

"The time has come, once and for all, for this nation to fully embrace a clean energy future," Obama said to applause. "But the only way the transition to clean energy will ultimately succeed is if the private sector is fully invested in this future -- if capital comes off the sidelines and the ingenuity of our entrepreneurs is unleashed. And the only way to do that is by finally putting a price on carbon pollution."