U.S. President Barack Obama leaves Washington, D.C., to meet with world leaders at the international climate summit in Paris. Rough Cut (no reporter narration)
ROUGH CUT (NO REPORTER NARRATION) U.S. President Barack Obama left Washington, D.C., on Sunday (November 29) enroute to the UN summit on climate change in Paris. Officials from nearly 200 countries will begin meeting on Monday (November 30) to discuss an agreement to cut the world's greenhouse gas emissions. Organisers hope the summit will produce the first legally binding agreement to commit both rich and developing nations to curbing emissions of greenhouse gases, blamed for warming the planet, beyond 2020. But all sides say pledges made in Paris will be insufficient to limit a rise in global temperatures to 2 degrees Celsius (3.6 Fahrenheit) above pre-industrial levels, widely viewed as a threshold for dangerous changes in the planet's climate system.