CO2 emissions Japan FY 2022, by sector

In the fiscal year 2022, the amount of carbon dioxide that was released by the energy conversion sector in Japan amounted to approximately 420 million tons of CO2. Carbon dioxide had the largest share of greenhouse gas emissions in Japan, accounting for over 90 percent of greenhouse gases. Main polluting sectors in Japan The energy conversion sector was the main polluting sector in that fiscal year. Following the nuclear disaster in Fukushima in 2011, nuclear energy was replaced by fossil fuels as sources with the largest share of the electricity production, resulting in increased emissions shortly after the disaster. In terms of non-energy related carbon dioxide emissions, the industrial processes sector represented the main polluter. Japan is one of the global leaders in the manufacturing industry, with its industrial sector accounting for the largest final energy consumption. Most emissions arise here due to the high electricity consumption for production.Japan's measures to reduce greenhouse gas emissionsIn 2020, former prime minister Suga Yoshihide announced that Japan aimed to be emission-free by 2050 and emphasized the importance of restructuring the energy sector to achieve this. The country is currently focusing on diversifying its energy mix, with an increased nuclear and renewable energy share. Moreover, Japan is one of the leading developers of climate-friendly technologies, such as electric vehicles. In recent years, figures indicated a decline of both the energy-related carbon dioxide emissions as well as carbon dioxide emissions from the industry sector. Nevertheless, there was international criticism that Japan's measures were not sufficient to counteract climate change.

在2022财年，日本能源转换部门排放的二氧化碳总量约为4.2亿吨CO2。二氧化碳在日本温室气体排放中占据最大份额，占比超过90%。日本的主要污染部门中，能源转换部门在该财年为主要的污染源。2011年福岛核灾难后，核能被化石燃料取代，成为电力生产中占比最大的能源来源，导致灾难发生后不久排放量增加。在非能源相关的二氧化碳排放方面，工业流程部门成为主要的污染者。日本是全球制造业的领先者之一，其工业部门占用了最大的最终能源消耗。大部分排放源于生产过程中高电力的消耗。日本为减少温室气体排放所采取的措施：2020年，前首相菅义伟宣布，日本旨在2050年实现无排放，并强调重组能源部门以实现这一目标的重要性。目前，该国正致力于多元化其能源结构，增加核能和可再生能源的份额。此外，日本是气候友好型技术（如电动汽车）的主要开发者之一。近年来，数据显示，与能源相关的二氧化碳排放以及工业部门的二氧化碳排放均有所下降。然而，国际社会对日本采取的措施不足以应对气候变化的批评声不绝于耳。