Current issues and uncertainties in estimating global land availability for biofuel production

摘要

Growing biomass, together with carbon capture and sequestration, is seen as one of the very few options to reach negative emissions and to remove CO-(2) from the atmosphere so that the 2℃ global temperature target can be attained [1]. It is anticipated that this technology would rely mostly on second-generation biomass in the near future. However, until now, only first-generation biomass has been used, in particular biofuels such as ethanol from corn in the USA, sugarcane in Brazil and biodiesel from oilseeds in Europe. Biofuel production has become a popular climate change mitigation option as it generates carbon uptake from the atmosphere [2].