Boost for UN deal hopes as world's largest greenhouse gas polluter confirms it will aim to curb emissions in next 15 years (climatechangenews.com)
The United States is the world's second biggest greenhouse gas polluter behind China, but its global warming pollution on a per capita basis is nearly five times higher than China's. (reuters.com)
She pointed to a cutoff set by EPA that limits regulated greenhouse gas polluters to those that emit 100,000 tons or more per year. (sciencemag.org)