President Obama is addressing world leaders at a climate change summit in Paris.

FOX News' Simon Owen reports from Paris:

The meeting was planned long before the terror attacks here earlier this month, but President Obama saying leaders have come to Paris to show their resolve.

The President warning the world faces a bleak future, unless action is taken soon to combat climate change:

(President Obama) "That future is one we have the power to change. Right here, right now."

The stated aim of the summit: a universal deal on limiting global warming.

In Paris, Simon Owen, FOX News.