The fungus uses a common carbohydrate processing enzyme called acetyl co-A to form the building blocks of hydrocarbons--but its unique chemical pathways are not yet understood nor is the process by which the gases escape the fungal membrane into the air.

FORBES: Magazine Article

It has withheld permits for coal mines, tightened pollution controls for power plants that use coal, and is in the process of drafting regulations on greenhouse gases.

ECONOMIST: Many Democrats in the region seem to hate their president

Tar sands take lots of energy to process, and therefore entail copious emissions of greenhouse gases.

ECONOMIST: Debating the Keystone XL pipeline

Chemical companies today create hydrogen by cracking methane, a process that results in a tremendous amount of greenhouse gases.

FORBES: Why Hydrogen Cars Could Still Be The Future

Our consumption of energy has been steadily growing, the costs are increasing, and in the process we are depleting vast amounts of fossil fuel reserves and building up dangerous levels of carbon gases and pollutants.

FORBES: Suvi Sharma

So if I make a claim that I'm reducing greenhouse gases because I've changed mileage standards on cars, there will be a process whereby people will be able to take a look and say, is that in fact in effect?

WHITEHOUSE: President Obama at Copenhagen Climate Change Conference

This process of combining of water, cement paste, sand and rock creates an awful lot of CO2 gases - which are linked by some scientists to global warming - about five to 10% of the world's total emissions.

BBC: By Ian Hardy