Charcoal is 70% carbon. Most charcoal is made in a very polluting manner, however bio-charcoal "biochar" is made in a clean process called pyrolysis. Millions of people all over the world produce and bury charcoal to improve the soil and increase crop yield. When buried, it sequesters carbon out of the atmospheric cycle. These farmers (un-miners™) get no credit, money or help in exchange for the service they are doing for humanity and the planet.Why not buy your carbon directly from a producer of environmental carbon?How carbon offsets workPeople buy carbon offsets to offset the carbon they are responsible for creating when they buy airplane tickets, etc. The most common type of offset involves the planting of trees. When someone contributes in this way they are hoping that the trees which are planted in their name will absorb CO2 from the atmosphere as they grow. This creates the following questions:How much money does it take to plant a tree including all the bureaucratic and administrative costs?How much carbon does each tree absorb from the atmosphere compared to how much the land would absorb if the tree was not planted?How long will the tree live for and what will happen to the carbon after the tree dies?How much of the carbon absorbed by the tree will actually be sequestered out of the atmosphere long term? In other words, how much of the carbon will be released in forms such as methane as it decomposes and how much will remain in the soil long term? If there is a forest fire how much of the carbon would be returned to the atmosphere? There are many different companies offering different sorts of carbon offsets. They all have their positive and negative aspects and they all seem to involve some aspect of uncertainty.A more reliable and permanent way to offset your carbon footprint is to produce charcoal and bury it (un-mine™) or pay someone to un-mine™ for you.Join our carbonface.org community to lead the the change need to sustain C02s.