Green transition

绿色过渡
  • 文章类型: Journal Article
    本研究调查了在中国采用环境保护税(EPT)政策对公司绩效的实际影响。分析使用基于准自然实验场景的差异(DID)方法。调查结果表明,实施EPT政策对公司财务业绩有负面影响,尽管进行了详尽的稳健性测试,但结论保持不变。负面影响可以部分归因于企业技术创新投入。同时,企业产权,污染,和技术水平也在很大程度上影响着立法的实施效果。然而,实施这项政策改善了企业的环境绩效,并确立了其在增强其可持续能力方面的效力。这项研究全面探讨了环境控制立法对企业绩效的影响,跨越金融,环境,和社会维度。相应的发现为企业如何对环境立法做出反应并适应外部环境提供了宝贵的见解。同时,也为全面绿色转型提供了客观参考。
    This study investigates the practical effects of adopting the environmental protection tax (EPT) policy on corporate performance in China. The analysis uses the Difference in Differences (DID) approach based on a quasi-natural experiment scenario. The findings indicate there is a negative impact of implementing the EPT policy on the financial performance of corporations, and the conclusion remains unchanged despite exhaustive robustness testing. The negative impact can be partly attributed to corporate technology innovation inputs. Meanwhile, enterprise property rights, pollution, and technical levels also substantially influence the implementation effect of the legislation. However, implementing this policy has improved corporations\' environmental performance and established its efficacy in enhancing their sustainable capabilities. This study comprehensively explores the impact of environmental control legislation on business performance, spanning financial, environmental, and social dimensions. Corresponding findings offer valuable insights into how firms react to environmental legislation and adjust to the external environment. Meanwhile, it also provides an objective reference for the comprehensive green transformation.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    红外(IR)技术提供了一种有前途的解决方案,可以减少各种食品中的微生物负荷,同时保持其质量特征。如风味。然而,对IR在复杂矩阵中的应用研究有限。因此,我们的初步研究旨在评估其消毒牛原料奶的有效性。我们通过顶空萃取和GC/MS分析比较挥发性有机化合物谱来评估IR处理前后的细菌计数。我们的发现表明,更高的能量水平导致更大的细菌减少。IR85在减少非匀浆样品中的大肠杆菌和肠杆菌科细菌方面最有效,减少范围从-1.01到>-2.99和从-1.66到-3.09LogCFU/mL,分别。IR60和70显示无疗效,IR80虽然中等,但效果仍然令人满意。IR85特别受影响的挥发性化合物,特别是增加己醛(从0.08到4.21ngg-1)和二甲基砜(从10.76到26.40ngg-1),而IR80更好地保留了香气。因此,只有IR80用均质原奶进行了测试,证明细菌显着减少(大肠杆菌从>2.39到3.06LogCFU/mL,肠杆菌从1.90到>2.45LogCFU/mL)并保持香气质量。
    Infrared (IR) technology offers a promising solution for reducing microbiological loads in various food types while preserving their quality traits, such as flavour. However, research on IR\'s application in complex matrices is limited. Therefore, our preliminary study aimed to evaluate its effectiveness in sanitizing bovine raw milk. We assessed the bacterial count before and after IR treatment by comparing volatile organic compound profiles via headspace extraction and GC/MS analysis. Our findings showed that higher energy levels led to a greater bacterial reduction. IR85 was the most effective in reducing Coliforms and Enterobacteriaceae in non-homogenised samples, with a reduction ranging from -1.01 to >-2.99 and from -1.66 to -3.09 Log CFU/mL, respectively. IR60 and 70 showed no efficacy, while IR80 had intermediate but still satisfactory effect. IR85 notably affected volatile compounds, particularly increasing hexanal (from 0.08 to 4.21 ng g-1) and dimethyl sulphone (from 10.76 to 26.40 ng g-1), while IR80 better preserved the aroma profile. As a result, only IR80 was tested with homogenised raw milk, demonstrating significant bacterial reduction (from >2.39 to 3.06 Log CFU/mL for Coliforms and from 1.90 to >2.45 Log CFU/mL for Enterobacteriaceae) and maintaining the aroma profile quality.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    《关键原材料法》旨在根据预期的需求增长解决关键原材料供应链的感知风险[1]。钴是欧盟的关键原材料之一:它在向低碳经济过渡中发挥着核心作用,对于为电动汽车供电的电池至关重要。钴工业之所以重要,不仅是因为绿色转型,它还创造就业机会,因为欧洲是全球钴价值链就业总量的第三大地区[2]。电池电动车辆(BEV)的全球市场持续增长,这导致锂离子电池(LIBs)生产的更高的材料需求。特别是锂镍锰钴(NMC)电池是部署在BEV上的领先电池类型之一,从废旧电池中回收材料以生产新的电池材料可以减轻材料供应风险[3,4]。本调查涉及钴回收专利的两个数据集的创建和比较,分别在没有(数据集1)和(数据集2)的情况下,将一个特定的“绿色”CPC分类代码添加到有关回收的大量分类代码列表中。即,CPCY02P10/20确定了有关数据集2中钴回收的搜索的穷尽性有了显着改善,另一方面,它也可能会产生问题,这些记录的后续选择原则上集中在NMC电池的回收上,并以一些假阳性为特征。因此,建议采用细化策略,使NMC数据集的准确性与表征来自数据集1的NMC结果的准确性相当。
    The Critical Raw Materials Act has been emanated to address perceived risks around supply chains for critical raw materials in light of expected demand growth [1]. Cobalt is one of the critical raw materials for the EU: it plays a central role in transition to a low-carbon economy and is crucial for batteries powering electric vehicles. The cobalt industry is important not only because of the green transition, it also creates employment opportunities as Europe is the third largest region for total global cobalt value chain employment [2]. The global market for battery electric vehicles (BEVs) is continuously increasing which results in higher material demand for the production of Li-ion batteries (LIBs). Especially Lithium nickel manganese cobalt (NMC) batteries are one of the leading types of batteries deployed on BEVs and recovering of materials from used batteries for producing new battery materials may mitigate the material supply risk [3,4]. The present survey concerns the creation and comparison of two datasets of patents concerning Cobalt recycling, respectively achieved without (dataset 1) and with (dataset 2) the addition of one specific \'green\' CPC classification code to a huge list of classification codes concerning recycling. Namely, the CPC Y02P10/20 determines a significant improvement on the exhaustivity of the search regarding Cobalt recycling in dataset 2, on the other hand it might also generate issues evidenced by a subsequent selection of those records in principle focused on the recovery of NMC batteries and characterized by several false positives. Therefore, a refinement strategy is recommended, to make the accuracy of the NMC dataset comparable to that characterizing the NMC results from dataset 1 achieved without any refinement.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    碳风险可能对企业的绿色转型产生潜在影响。本文深入研究了碳风险对向可持续发展过渡的影响和机制。我们使用定量回归模型和2011-2020年中国制造业上市公司的面板。有强有力的证据表明,碳风险对企业绿色转型的影响是积极的,并且具有统计学意义。绿色转型的标志是全面鼓励探索,可利用的,自治,合作绿色创新。机制检验表明,内部R&D转化的增强和外部利益相关者的压力是碳风险影响绿色转型的两个基本途径。额外的检查表明,对于资本密集度有限的公司来说,有益的影响尤其明显,政府援助最少,减少财务限制,是国有企业。这些结果对于通过工具变量解决内生性问题是稳健的,赫克曼两步,安慰剂测试,倾向得分匹配和差异差异方式。在碳中和的背景下,研究碳风险与企业绿色转型的关系具有重要意义。结论补充了碳风险和绿色转型的知识,为新兴经济体制造业企业的绿色转型提供理论启示和实践启示。
    Carbon risk may have potential influences on the green transition of enterprises. This paper thoroughly investigates the effect and mechanism of carbon risk on the transition towards sustainability. We use quantitative regression models and a panel of Chinese manufactural listed companies from 2011-2020. There is strong evidence manifesting that the effect of carbon risk on corporate green transition is positive and statistically significant. The green transition is marked by the overall encouragement of exploratory, exploitable, autonomous, and collaborative green innovation. The mechanism test indicates that the enhancement of internal R&D transformation and the pressure of external stakeholders are two fundamental pathways by which carbon risk influences the green transition. Additional examination reveals that the beneficial impact is particularly noticeable for companies that have limited capital intensity, minimal governmental assistance, reduced financial limitations, and are state-owned enterprises. These results are robust to resolve the problem of endogeneity by means of instrumental variables, Heckman two-step, placebo test, propensity score matching and difference-in-difference ways. Against the background of carbon neutrality, it is of great significance to examine the relationship between carbon risk and corporate green transition. The conclusion complements the knowledge of carbon risk and green transition, as well as provides theoretical insights and practical enlightenment for the green transition of manufacturing enterprises in emerging economies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    城市和绿色转型需要可能对沿海生态系统造成压力的基础设施。在台湾北部,将燃油发电厂转换为天然气的计划将需要港口码头建设,威胁附近的珊瑚和海洋生物.为了减轻施工影响,有人提议搬迁受影响的珊瑚。我们进行了一项移植研究,在如此大规模的珊瑚搬迁之前,评估其可行性,并确定与台湾北部边缘位置相关的热带珊瑚的潜在风险。五种珊瑚,代表不同的生态策略,被选中。我们使用两种方法(人工框架和海床胶结)将246个菌落碎片移植到两个预先选择的位置。一年多,我们监测了碎片的存活和生长,与环境条件并行。我们发现存活和生长受到移植方法的显著影响,网站,和物种。方法之间的差异揭示了影响珊瑚生存和生长的生物因素(珊瑚蜗牛的捕食)和非生物因素(波浪的机械损伤)。Acropora物种表现出高生长,但死亡率也很高,符合他们已知的生态。其他物种生长较慢,但存活率较高。一个地点为珊瑚提供了更好的环境,我们归因于地形和减少暴露。总的来说,这项研究为在高纬度和城市珊瑚生态系统中重新安置珊瑚提供了有趣的见解,突出与机械损伤和捕食相关的风险。
    Urban and green transitions require infrastructures that can cause pressure on coastal ecosystems. In northern Taiwan, plans to convert an oil-fired power plant to gas would necessitate a port terminal construction, threatening nearby corals and marine life. To mitigate construction impacts, the relocation of affected corals was proposed. We conducted a transplantation study, prior to such a large-scale coral relocation, to assess its feasibility and to identify potential risks associated with the marginal location of northern Taiwan for tropical corals. Five coral species, representative of the different ecological strategies, were selected. We used two methods (artificial frames and seabed cementation) to transplant 246 colony fragments to two pre-selected sites. Over a year, we monitored fragment survival and growth, in parallel with environmental conditions. We found that survival and growth were significantly influenced by transplantation methods, sites, and species. The difference between methods revealed biotic (predation by corallivorous snails) and abiotic (mechanical damage by waves) factors affecting coral survival and growth. Acropora species exhibited high growth, but also high mortality, consistent with their known ecology. Other species presented slower growth but higher survival. One site provided a better environment for corals, which we attributed to topography and reduced exposure. Overall, this study provides interesting insights into relocating corals in a high-latitude and urban coral ecosystem, highlighting risks related to mechanical damages and predation.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    推动绿色低碳发展已成为决策者和学术界的共识,企业绿色转型是重中之重。本文采用差异模型考察了绿色信贷政策对我国绿色转型的影响,通过利用“绿色信贷指南”(2012年指南)政策作为准自然实验。利用中国上市公司的面板数据,进行了实证调查,我们从两个维度解释因变量:经济绩效和环境绩效,导致以下结果。首先,绿色信贷政策对被处理企业的经济绩效和环境绩效产生积极影响,稳健测试证实了这一主要结论的可靠性。第二,绿色信贷政策对绿色转型的间接影响可以通过内部能力建设和外部市场关注两个中介机制渠道来解释。此外,“双碳目标”的提议使影响略有变化。最后,异质性检验也表明,在政治关联度较高的非国有企业中,绿色信贷政策的实施效果较好。这些发现为通过设计更有效的绿色信贷政策促进绿色转型提供了宝贵的见解。
    Promoting green and low-carbon development has become the consensus of the policymakers and the academic, with green transformation of enterprises being the top priority. This paper adopts the difference-in-difference model to investigate the effect of green credit policy on green transition in China, by utilizing the \"Green Credit Guidelines\" (2012 Guidelines) policy as a quasi-natural experiment. Using panel data from publicly listed companies in China, an empirical investigation is conducted, we explain the dependent variable from two dimensions: economic performance and environmental performance, leading to the following results. First, the green credit policy affects the economic performance and environmental performance of treated firms positively, and the robust tests confirm the reliability of this primary conclusion. Second, the indirect impact of green credit policy on green transition can be explained through two mediating mechanism channels including internal capacity building and external market attention. In addition, the proposal of \"Dual Carbon Targets\" makes the impact a slight change. Finally, heterogeneous test also shows that the implementation effect of green credit policy is better in non-state-owned enterprises with high political relevance. These findings are providing valuable insights to promote green transition by designing more effective green credit policies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    这项横断面研究旨在获得有关工人暴露于空气粉尘的知识,细菌和真菌物种,内毒素,生物膜的形成,以及钻井废物处理厂中的硫化氢(H2S)。总的来说,408个全班个人样本,66个工作区40个钻井废物,和参考(室外空气和海水)样品进行了分析。一些工人暴露于高水平的内毒素(207EU/m3),细菌(3.8×104菌落形成单位(CFU)/m3和9.8×104DNA拷贝/m3),或真菌(1.4×107CFU/m3和3,600拷贝/m3)。内毒素的暴露水平,细菌,H2S的峰取决于处理技术。与海水参考相比,所有类型的钻井废物都含有高浓度的细菌。在钻井废物盆地附近发现空气中细菌的浓度升高。总的来说,在工人接触中发现了116、146和112种不同的细菌,工作区,和钻井废物,分别。发现在钻井废物和空气(个人和工作区域)样品中发现的细菌物种重叠。在发现的细菌物种中,49被归类为人类病原体,如大肠杆菌,阴沟肠杆菌,和氧化克雷伯菌.总的来说,在工作环境中发现了44种真菌,其中6种被分类为人类病原体,如烟曲霉。总之,穿过钻井废物处理厂,钻井废物中存在人类病原体,工人的接触受到工厂处理的钻井废物的影响,这些废物暴露于内毒素和细菌。高暴露与学徒或化学工程师有关,和清洁工作,或污水,白天工作。
    This cross-sectional study aims to obtain knowledge about workers\' exposure to airborne dust, bacterial and fungal species, endotoxin, biofilm formation, and hydrogen sulfide (H2S) in drilling waste treatment plants. In total, 408 full-shift personal samples, 66 work areas, 40 drilling waste, and reference (outdoor air and seawater) samples were analyzed. Some workers were exposed to high levels of endotoxin (207 EU/m3), bacteria (3.8 × 104 colony forming units (CFU)/m3 and 9.8 × 104 DNA copies/m3), or fungi (1.4 × 107 CFU/m3 and 3,600 copies/m3). The exposure levels to endotoxin, bacteria, and peaks of H2S were dependent on the treatment technique. All types of drilling waste contained large concentrations of bacteria compared to the seawater references. Elevated concentrations of airborne bacteria were found close to drilling waste basins. In total, 116, 146, and 112 different bacterial species were found in workers\' exposure, work areas, and the drilling waste, respectively. An overlap in bacterial species found in the drilling waste and air (personal and work area) samples was found. Of the bacterial species found, 49 are classified as human pathogens such as Escherichia coli, Enterobacter cloacae, and Klebsiella oxytoca. In total, 44 fungal species were found in the working environment, and 6 of these are classified as human pathogens such as Aspergillus fumigatus. In conclusion, across the drilling waste treatment plants, human pathogens were present in the drilling waste, and workers\' exposure was affected by the drilling waste treated at the plants with elevated exposure to endotoxin and bacteria. Elevated exposure was related to working as apprentices or chemical engineers, and working with cleaning, or slop water, and working in the daytime.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    暂无摘要。
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    耐盐的非常规酵母汉森酵母可以在含有高浓度盐(高达4M)的培养基中生长,代谢替代碳源而不是葡萄糖,如乳糖或甘油,并承受广泛的温度和pH值。这些固有的能力允许该酵母在恶劣的环境中生长,并使用比传统商业培养基的替代原料。例如,D.hansenii可能是一个潜在的细胞工厂,用于重新评估工业含盐副产品,用它们作为生产新的有价值的生物产品的基质,促进循环经济。在这项工作中,来自乳制品和生物制药行业的三种不同的含盐副产品已被测试为D.hansenii生长的可能原料。酵母不仅能够在所有这些酵母中有效生长,而且还能够产生重组蛋白(黄色荧光蛋白,用作模型)而不改变其性能。此外,在非无菌条件下进行不同实验室规模(1.5mL和1L)的开放培养,不添加淡水或任何营养补充剂,使过程更便宜,更可持续。
    The halotolerant non-conventional yeast Debaryomyces hansenii can grow in media containing high concentrations of salt (up to 4 M), metabolize alternative carbon sources than glucose, such as lactose or glycerol, and withstand a wide range of temperatures and pH. These inherent capabilities allow this yeast to grow in harsh environments and use alternative feedstock than traditional commercial media. For example, D. hansenii could be a potential cell factory for revalorizing industrial salty by-products, using them as a substrate for producing new valuable bioproducts, boosting a circular economy. In this work, three different salty by-products derived from the dairy and biopharmaceutical industry have been tested as a possible feedstock for D. hansenii\'s growth. The yeast was not only able to grow efficiently in all of them but also to produce a recombinant protein (Yellow Fluorescent Protein, used as a model) without altering its performance. Moreover, open cultivations at different laboratory scales (1.5 mL and 1 L) were performed under non-sterile conditions and without adding fresh water or any nutritional supplement to the cultivation, making the process cheaper and more sustainable.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    实现净零目标在很大程度上依赖于向绿色方法的过渡,把它作为首要任务。我们的研究,它使用了广义最小二乘(GLS)面板方法,发现每个宏观区域每年在气候债券上的人均投资至少应该增加2%,一种绿色债券。尽管一些研究质疑气候债券的有效性,我们的重点是在生产更多化石燃料的国家有效利用它们。我们的研究结果表明,在全球范围内,a)在人均使用化石燃料较高的地区,气候债券的利用不足,和b)高收入国家正在逐步减少对化石燃料的依赖,而低收入国家一直很少使用(对未来增长的预测)。以气候债券的形式为绿色过渡分配财政资源应考虑人均使用化石燃料,以及人口增长的异质性和不同的宏观区域经济发展。发展中国家,他们人口众多,未来将需要更多的财政资源来实现道德上可接受的绿色过渡。
    Achieving a Net-Zero goal is heavily reliant on transitioning to green methods, making it a top priority. Our research, which used the Generalized Least Squares (GLS) panel method, found that each Macro-region should invest at least 2% more per capita annually in Climate Bonds, a type of green bond. Although some studies have questioned the effectiveness of Climate Bonds, our focus is on their efficient use in countries that produce more fossil fuels. Our findings show that globally, a) Climate Bonds are underutilized in areas with higher per capita use of fossil fuels, and b) High-income countries are gradually reducing their reliance on fossil fuels, while low-income countries have always used very little (with a forecast of future growth). Allocating financial resources in the form of Climate Bonds for the green transition should consider per capita use of fossil fuels, as well as the heterogeneity of population growth and different Macro-Regional economic development. Developing countries, with their large populations, will require more financial resources for an ethically acceptable green transition in the future.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

公众号