China is the world's largest emitter of carbon dioxide.

China is the world's second largest emitter of such gases, after the United States.

China is the largest emitter of carbon dioxide in the world.

Power plants, refineries, and other large emitters must comply with the cap in 2013.

The country is currently the world's largest emitter of greenhouse gases according to a Dutch research agency.

America is the world's largest emitter of greenhouse gases.

America remains the world's largest emitter of greenhouse gases, a position that we have held for many decades.

The United States is pretty much the largest emitter of greenhouse gases in the world.

First of all, probably because, with our 14% CO2 emissions, we are not among the largest emitters.

China is expected to pass the United States this year or next to become the world's largest emitter of global warming gases.