I was surprised to see peat being a commonplace heating fuel in urban and suburban areas of Ireland. We made it out to the kind of land that produces peat.

Peat occupies an interesting gray area in that people debate whether or not it is a renewable resource.

Peat can catch fire in the bogs where it was formed and burn indefinitely. Some scientists believe that peat fires in Borneo and elsewhere are big causes of C02 pollution. There are bogs in Siberia that are thawing after having been frozen for 11,000 years and they are releasing huge amounts of methane.