Global carbon dioxide, nitrous oxide, and methane levels have continued to increase during the last 30 years. CFC-12 and CFC-11…

Enteric fermentation (part of the digestive process of livestock) is responsible for a whopping 23% of U.S. methane emissions. Manure…

There were 8,742 million metric tons of total global carbon dioxide (CO2) emissions in 2008. China was the largest contributor…

Global carbon dioxide (CO2) emissions from fossil-fuels have increased from about 2,500 teragrams of CO2 in 1900 to 32,000 teragrams…

The U.S. greenhouse gas emissions totaled 6,702 million metric tons of CO2 equivalent in 2011. The majority of emissions were…

In total there were 6,702 million metric tons of U.S. greenhouse gas emissions in 2011. The plurality of greenhouse gas…

The U.S. is relying more on natural gas and less on coal to generate electricity. In 2005, 49.6% of electricity…