or biologically unsuitable for use of GI. The types of crops will have an effect of how well the crops are a carbon sink. The three major types of crop in China are rice, wheat and corn with a total 165.76 TgC. Rice had the highest amount of carbon sink between the three crops. Out of the 165.76 TgC of carbon sink, rice was able to contribute 48.71%. Land use, land-use change and forestry Land use, land-use change and forestry (LULUCF) projects focus on natural carbon sinks such as forests and soil. Trees are very efficient at sequestering the carbon from the atmosphere. There are a number of different types of LULUCF projects: Avoided deforestation is the protection of existing forests. Reforestation is the process of restoring forests on land that was once forested. Afforestation is the process of creating forests on land that was previously unforested, typically for longer than a generation. Soil management projects attempt to preserve or increase the amount of carbon sequestered in soil. Deforestation, particularly in Brazil, Indonesia and parts of Africa, account for about 20 per cent of greenhouse gas emissions. On average, the removal of trees is 7–30% of the greenhouse gasses around the world. Deforestation can be avoided either by paying directly for forest preservation, or by using offset funds to provide substitutes for forest-based products. There is a class of mechanisms referred to as REDD schemes (Reducing emissions from deforestation and forest degradation), which may be included in a post-Kyoto agreement. REDD credits provide carbon offsets for the protection of forests, and provide a possible mechanism to allow funding from developed nations to assist in the protection of native forests in developing nations.The management of carbon tree storage is called forest offsets. Reforestation could support an additional 0.9 billion hectares of continuous forest which could store the equivalent of 25% of the current atmospheric pool. Offset schemes using reforestation are available in developing countries, as well as an increasing number of developed countries including the US and the UK. Almost half of the world's people burn wood (or fiber or dung) for their cooking and heating needs. Links with emission trading schemes Once it has been accredited by the UNFCCC, a carbon offset project can be used as carbon credit and linked with official emission trading schemes, such as the European Union Emission Trading Scheme or Kyoto Protocol, as Certified Emission