In our projects, we consider global warming in two perspectives, carbon absorption, and carbon emission, that is to say, the absorption and release of greenhouse gases, and mainly from the perspective of carbon and wood. We study carbon and wood imports to understand the amount of carbon released in the United Kingdom. We visualize the import route of sawn wood by studying the British shipping lanes and find its main importing country, Sweden, which accounts for over 30% of the total timber imports in the UK.
The main use of wood in the UK is paper-making, and this process consumes a lot of energy and leads to produce carbon emissions, which means that a large proportion of wood imported into the UK is converted into carbon emissions. Britain's industry and populace uses at least 50 million tonnes of timber a year. More than 75% of this is softwood, and Britain's forests cannot supply the demand. Less than 10% of the timber used in Britain is home-grown. Paper and paper products make up more than half the wood consumed in Britain by volume. The graph marks the changes of carbon credit from 1900 to 2019. Countries participating in the "cap-and-trade" program are increasing, and the increase in the price of carbon credit relates to the ones which gradually pay attention to the environment. By taking part in the "cap-and-trade" program, countries limit their domestic carbon emissions.