多尺度差异化气候减缓路径
-
CEADs研究:揭示新冠疫情对全球碳排放的短期抑制超过二战及2008年金融危机
COVID-19大流行期间人类活动大规模减少,一些国家为了保护公众健康而实行了封锁政策,工业生产和能源消费在短短几周内下降了30%,影响了全球能源使用和二氧化碳排放。近日,由CEADs团队清华大学地球系统科学系刘竹副教授领衔,联合27家国内外单位,基于多部门高时空分辨率数据观测人类活动强度变化,构建了全球首个近实时碳排...
-
CEADs研究:共享餐具有望破解外卖包装垃圾难题
外卖包装垃圾产量 随着电子商务和移动终端技术的快速发展,人们生活方式和饮食习惯悄然变化。近年来,我国外卖新业态经济蓬勃发展,在线外卖用户从2011年0.6亿人增至2019年4.2亿人,增长了6倍,在线外卖市场规模从2011年217亿元增长到2019年2845亿元,在线外卖营业额占我国餐饮业比重从2015年1.4%上升至2018年10.6%。外卖新经济一方面给...
-
Sharing tableware reduces waste generation, emissions and water consumption in China’s takeaway packa
China has a rapidly growing online food delivery and takeaway market, serving 406 million customers with 10.0 billion orders and generating 323 kilotonnes of tableware and packaging waste in 2018. Here we use a top-down approach with city-level takeaway order data to explore the packaging waste and life-cycle environmental impacts of the takeaway industry in China. The ten most wasteful cities, with just 7% of the population, in terms o...
-
CEADs研究:跨国企业供应链对应的碳足迹核算及投资者负责原则
跨国企业碳足迹 2015年,巴黎协定确定了把全球平均气温较工业化前水平升高控制在2摄氏度之内的目标。但是,当前各个国家和企业承诺的减排量并不能够实现巴黎协定确定的减排目标。为了实现巴黎协定确定的减排目标,企业需要采取更加积极的行动应对气候变化。大型跨国企业在应对气候变化行动中扮演着十分重要的角色。首先,...
-
CEADs研究:印度碳排放增长动力转换明显
引言 气候变化是人类在新世纪面临的重大挑战,而化石能源燃烧所排放的二氧化碳是引起气候变化的主要温室气体。2013年后,全球碳排放总量在增速上明显放缓,这主要得益于中国经济进入“新常态”后所采取的一系列节能减排措施,下一阶段全球碳减排目标的实现与正处于工业化阶段的新兴经济体息息相关。印度作为世界上第二大...
-
CEADs研究:“一带一路”沿线国家的低碳发展——以白俄罗斯为例
“一带一路”倡议提出5年来,取得了举世瞩目的成绩,基础设施建设和经贸往来让一带一路成为经济繁荣之路,低碳、环保理念让“一带一路”成为绿色发展之路。CEADs团队深耕一带一路国家及地区的基础数据库建设。日前,由对外经济贸易大学汪惠青博士领衔并联合多所国内外研究机构合作完成的,以白俄罗斯为例探讨了“一带一路...
-
Low-carbon development via greening global value chains: a case study of Belarus
The rise of global value chains (GCVs) hasseen the transfer of carbon emissions embodied in every step of internationaltrade. Building a coordinated, inclusive and green GCV can be an effective andefficient way to achieve carbon emissions mitigation targets for countries thatparticipate highly in GCVs. In this paper, we first describe the energyconsumption as well as the territorial and consumption-based carbon emissionsof Belarus and i...
-
CEADs研究:稀土金属供应短缺制约全球风电发展
随着极端天气和健康事件频发,应对全球气候变化已是国际共识。其中,大力发展可再生能源电力,实现电力系统脱碳,被认为是重要途径之一。为此,世界各国制定了一系列雄心勃勃的风电发展目标,风电场大规模建设是大势所趋。其中,稀土作为先进风机技术中的关键性金属原材料,其需求必将随着风电的大规模扩张而快速增长。...
-
Critical Rare-Earth Elements Mismatch Global Wind-Power Ambitions
Wind power needs to be expanded rapidlyacross the world to stabilize our climate. However, there are increasingconcerns about conflicts between the supply of rare-earth elements (REs)(mainly neodymium, praseodymium, and dysprosium) and the global expansion ofwind power. Here, we provide a dynamic, technology-rich, and regional-specificapproach to exploring such conflicts among ten world regions through 2050 underfour widely recognized c...
-
Regional determinants of China's consumption-based emissions in the economic transition
China has entered the economic transition in the post-financial crisis era, with unprecedented new features that significantly lead to a decline in its carbon emissions. However, regional disparity implies different trajectories in regional decarbonisation. Here, we construct multi-regional input-output tables (MRIO) for 2012 and 2015 and quantitatively evaluate the regional disparity in decarbonisation and the driving forces during 201...