Results 21 to 30 of about 1,738 (115)
Due to climate change, the breeding range of the two Asian subspecies of Black‐tailed Godwit would shift northward in the future, accompanied by a significant decline in suitable breeding range size. Abstract Habitat loss and shifts associated with climate change threaten global biodiversity, with impacts likely to be most pronounced at high latitudes.
Bing‐Run Zhu +5 more
wiley +1 more source
Evident but context‐dependent mortality of fish passing hydroelectric turbines
Abstract Globally, policies aiming for conservation of species, free‐flowing rivers, and promotion of hydroelectricity as renewable energy and as a means to decarbonize energy systems generate trade‐offs between protecting freshwater fauna and development of hydropower. Hydroelectric turbines put fish at risk of severe injury during passage. Therefore,
Johannes Radinger +2 more
wiley +1 more source
碳排放交易体系(emission trading schemes,ETS)作为基于市场机制下控制和减少碳排放的政策工具已被越来越多国家采用,同时可再生能源证书(renewableenergy certificates,REC)也是国际上促进可再生能源发展的重要机制,但如何提升REC的购买动机以实现其设计目标是政府和研究人员关注的问题。为探讨2种机制的结合能否提升REC的购买动机以实现进一步减排作用,提出了一种基于博弈论的REC交易双层模型,在与现实接近的寡头电力市场条件下 ...
陶悦川 +4 more
doaj +1 more source
Abstract Carbon taxes are frequently advocated as a means of reducing greenhouse gas (GHG) emissions, yet their political feasibility remains a challenge. To enhance their political appeal, carbon tax proponents have proposed revenue recycling as a means of alleviating public concern with this instrument's visible costs.
Sverker C. Jagers +3 more
wiley +1 more source
Rewilding in the face of climate change
Abstract Expansion of the global protected‐area network has been proposed as a strategy to address threats from accelerating climate change and species extinction. A key step in increasing the effectiveness of such expansion is understanding how novel threats to biodiversity from climate change alter concepts such as rewilding, which have underpinned ...
Carlos Carroll, Reed F. Noss
wiley +1 more source
南非是非洲最具影响力的国家之一,也是全球主要温室气体排放国之一。随着全球气候变暖形势越发严峻以及本国优质煤炭资源日趋紧张,南非近年来开始积极推进能源低碳转型并提出2050年实现碳中和的减排目标。首先详细介绍了南非能源结构和碳排放现状,其次概述了南非碳中和目标的实现路径以及涉及电力、工业、交通运输、建筑、农林等领域的减排政策、规划和措施,并指出了所面临的主要困难和挑战。南非的相关实践对其他发展中国家具有重要的参考意义。
周立志, 张鹏飞, 麻常辉, 刘洁
doaj +1 more source
为促进我国油脂加工行业碳排放认证,介绍了现有碳排放的计算方法、标准和数据库,对我国油脂加工行业减排案例及碳排放的认证现状进行了论述,探讨了碳排放计算和认证中存在的问题,并对油脂加工企业碳排放认证提出建议。我国油脂行业碳排放认证存在缺乏统一标准规范、提出的减碳方案空泛、认证计算不全面等问题,应制定油脂加工行业碳足迹计算标准规范,统一基础数据,建立数据库和碳足迹认证参数体系,以找到降低碳排放的关键环节,从而实现碳中和。 In order to promote the carbon emission ...
鲁海龙1,钱瑾蓉2,杨静雯3,郑有涛4,张小勇1,杨帆1 LU Hailong1, QIAN Jinrong2, YANG Jingwen3, ZHENG Youtao4, ZHANG Xiaoyong1, YANG Fan1
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作为算力承接地,西部地区拥有丰厚的自然资源禀赋,需充分发挥其在能源、气候等方面的优势。“东数西算”背景下,数据中心急需对算力转移过程的碳减排效益进行量化分析。在考虑可再生能源、气候因素和传输过程3个影响因素的情况下,构建了数据中心工作负载转移的碳排放量核算模型,以“东数西算”八大节点为例进行算例分析。结果发现,相较于可再生能源和气候因素所减少的碳排放量,传输过程造成的额外碳排放量微乎其微,在仅考虑前两者的情况下,每转移1 kW·h的工作负载,碳排放量可减少0.053~0.344 kg ...
周瑜, 张炜乐, 段婉婷
doaj +1 more source
基于我国碳排放约束性指标的提出,在收集2000〜2009年西部、中部、东北部及东部地区所辖30个省市(除西藏外)的相关数据的基础上,估算CO2排放情况,通过图表及有关参数分析这些区域CO2排放现状,阐明CO2排放特征.结果显示,近10年,我国单位GDP CO2排放量下降了 38. 4%,若兑现2020年碳减排承诺,减排量相当于2005年全球CO2排放量的29.
ZHANGLi(张莉) +2 more
doaj +1 more source
中国一直高度关注气候变化对国家和社会的影响,并积极推进碳减排的工作。40.5 kV箱式气体绝缘金属封闭开关设备(C-GIS)因其内部充有SF6气体,其碳排放计算对指导电力设备碳排放计算与分析具有较强参考价值。因而文中针对40.5 kV C-GIS,考虑其原材料获取、生产制造、运输、使用以及回收利用五个阶段,参考生命周期碳排放评价方法,采用排放因子法核算其生命周期的碳排放总量,对每一个阶段的碳排放量进行分析,发现SF6在其生命周期内碳排放量占比大,占总排放量的57.5%;在其生命周期内各个阶段 ...
游一民 +6 more
doaj

