I was reading an article on TreeHugger about the carbon emission differences between several bar-b-que fuels. It turns out that gas has the lowest emissions, for now, but chunk charcoal (not the processed stuff you buy in a bag at the store) is actually better. The reason it’s not the best though is because it has to be shipped across the country, or even across continents, which makes it have a higher footprint.
Here’s the article on TreeHugger. Enjoy!