Wood waste is often sent to landfills since it is a complex material to reuse and recycle. In the UK, Premier Forest group burns wood waste in the absence of air (pyrolysis) to create biochar bricks that are used as soil amendments. This biochar contains over 85% carbon and is extremely stable for hundreds of years. Premier Forest follows the Puro.earth biochar methodology to produce biochar at its facility in South Wales in the United Kingdom.  Premier Forest produces bricks of biochar that are sold to compost producers who mix it with other organic materials. A lifecycle analysis of the biochar produced found that 2.96 tons of CO2 are removed and sequestered for every ton of biochar sold. In the absence of the sale of carbon credits, the biochar bricks were being sold as fuel, which led to further CO2 emissions. It also helps prevent emissions of soot, carbon monoxide and methane that would have been released if the wood waste was to be used as feedstock.  Biochar is used as a soil treatment that improves nutrient and water absorption, leading to higher agricultural yields. It also reduces the leaching of nutrients from the soil into waterways that prevents negative ecosystem impacts.