Zero Emission Research Articles

Climate Risks and Economic Consequences of Rising Global CO2 Emissions in Aviation, Shipping, and Heavy-Duty Transport

This study examines methods to lessen the environmental consequences of global CO2 emissions from the hard-to-abate transport sector. The paper analyzed historical and projected trends in global CO2 emissions from the hard-to-abate transport industry under two scenarios: the stated policy scenario (STEPS) and the announced pledged scenario (APS). The study covered the historical period from 2010 to 2022 and projected emissions up to 2050. The analysis revealed that the compound annual growth rate (CAAGR) of STEP exceeded that of APS in 2030 and 2050 for challenging emissions from heavy- duty vehicles, aircraft, and shipping when compared to the baseline year of 2022. The aviation industry has a higher CAAGR of 5.3% and 2.5% for 2030 and 2050, respectively, compared to heavy-duty vehicles at 1.6% and 0.9% for 2030 and 2050, respectively, and shipping at 0.7% and 0.9% for 2030 and 2050, respectively, under STEPS. Under the APS scenario, shipping showed a negative CAAGR of -0.8% and -2.8% for 2030 and 2050, respectively, and 0.4% and -1.8% for 2030 and 2050, respectively, for heavy-duty trucks. In comparison, the aviation industry had CAAGRs of 4.5% and 0.8% for 2030 and 2050, respectively. The data shows that the aviation industry is expected to see a far greater CAAGR in emissions than heavy-duty vehicles and shipping in both STEPS and APS scenarios. Targeted efforts are necessary to mitigate the environmental effects of air travel in the upcoming decades. The paper also examined 56 publicly traded international transportation companies and their corresponding carbon emission targets. Only seven companies, or 12.5%, have established goals for reducing emissions from 2023 to 2050; 10 companies, accounting for 17.9%, have committed to achieving carbon neutrality by 2040 to 2060; five corporations, representing 8.9%, have set targets for reducing emission intensity from 2025 to 2034; and 34 global corporations, making up 60.7%, have committed to achieving net zero emissions between 2040 and 2050. Despite some progress in setting emission reduction targets in the air travel industry, many companies still need to set carbon footprint reduction goals.

Bioplastic- Futuristic Approach

The ever-growing production of non-recyclable plastic products causes plastic pollution to be the one of most pressing environmental issues. The transition of petrochemical-based plastic with eco-friendly biodegradable plastic has become the promising solution to overcome the plastic pollution crisis. Recycling technology is an effective but incomplete measure to address these environmental issues. Bioplastic is a type of plastic made from biomass materials. Biomass normally refers to a union of microorganisms, which mainly contains macromolecules including starch, cellulose, protein, etc. Biodegradable bioplastic is a natural polymer modified class (PSM). Bioplastics are considered highly significant to increase sustainability where sustainability defines a balance between economic, environmental and social aspects of business and can be applied to different domains. In this research, the development of bioplastics is introduced in the context of circular economy. The choice of proper raw material for biopolymer production is very important as it can have an additional impact on the ecological pressure caused by the process. Here, waste water from rice mill is taken as raw material and natural coagulant like oil, starch, gelatine (commercial) etc are added for its flexibility. The thought of “Zero Emission” and “Recycling” the waste water in the production process can be highly beneficial in moving a step closer towards sustainability. Key words: bioplastic, waste water, circular economy and zero emission

Cooperation Between Indonesia Battery Cooperation (IBC) and Hyundai on the EV Battery Project in Indonesia as A Form of Renewable Energy Solution in Response to Climate Change

Energy frequently relates to bring up in relation to the Net Zero Emissions 2060 target. Finding a way to achieve zero carbon emissions with an energy sustainability solution in line with the seventeen Sustainable Development Goals (SDGs) is the goal. Indonesia and other nations follow the Energy Trilemma, which emphasized three primary factors—energy security, energy affordability, and sustainable energy—to become factors that are taken into account for planning and history in order to address all social, economic, and environmental aspects. More precisely, taking into consideration the capacities of both countries, South Korea and Indonesia have proposed several strategic alternatives, one of which is the EV battery project development strategy. In addition to resources and other forms of strategic support, South Korea invests in, owns, and controls technology for Indonesia. Indonesia is able to meet 52% of the world’s nickel demand. This study examines how the Hyundai consortia and the Indonesian Battery Corporation consortia worked together to build an EV battery project in Indonesia, which had an impact on both nations to achieve the solution of how to be one of the renewable energy solutions in response to climate change. Keywords: EV Battery; Trilemma Energy; Global Value Chain; Hyundai; IBC.

UK Environmentally Sensitive Businesses SDG’s Disclosure in their Sustainability Reports, Websites and Social Media

This study examines the relationship between financial investment, shareholder preference, corporate social responsibility (CSR) performance and life satisfaction for BP and Shell within the UK, together with their alignment with specific Sustainable Development Goals (SDGs). about, using regression analysis, in both projects Hypotheses were tested to assess the significance of these predictors in the performance of CSR developed. The results showed that financial investment, shareholder ownership, and social satisfaction did not significantly predict CSR performance for BP and Shell. Furthermore, there were no significant differences in the impact of these predictors between the two companies. Further research revealed Shell’s strong commitment to SDG 7 (Affordable and Clean Energy) and SDG 13 (Climate Action), with both initiatives drawing on Shell’s significant investments in renewable energy and climate recognition in the management system established him as a leader in sustainable development efforts. BP’s goal of achieving net zero emissions by 2050, especially focused on SDG 7 and SDG 12 (Responsible Consumption and Production), this proposal was adopted comparing the two sectors, Shell showed significant advantages, which can be attributed to its diversified capabilities and its strong alignment with the sustainability objectives of BP, while growing largely, it faces significant financial challenges in its transition to clean energy. The study concludes that although both companies are committed to sustainability, Shell now leads in terms of effective CSR and financial performance.

Regulatory framework for the promotion of heat pumps in the European Union

Heat pumps (HPs) are viewed by the European Union (EU) as a decisive instrument for accomplishing the goals of net zero emissions by 2050. This technology has the potential to help reach this goal by allowing greater integration of renewable energy sources and the use of waste heat. With a particular focus on industry applications, this paper reviews the evolution of the regulatory frameworks and policy efforts for the promotion of HPs at the EU level and assesses the achievement of the set goals. The imperative decarbonization of the industrial sector stands as a critical milestone in realizing the ambitious 2050 targets, constituting nearly 26 % of the EU's total final energy demand. This manuscript delineates the industrial sectors and process applications where HPs could potentially increase energy efficiency, shedding light on the primary obstacles hindering their widespread deployment. Moreover, the study delves into the landscape of ongoing research and development (R&D) projects within the EU, showcasing tangible evidence of the feasibility of HP application. Comprehensive in scope, the paper provides a thorough examination of existing policies related to HPs at both the EU and Member States levels, emphasizing a glaring absence of a robust regulatory framework necessary to propel the widespread adoption of this technology in EU industries. Furthermore, the manuscript also provides indications on possible ways of promoting HTHPs in the industrial sector, with attention not to repeating the mistakes that occurred in the past with the promotion of renewable energy. It is expected that the conclusions extracted can be of interest to developers and policymakers as well as to practitioners of other emerging technologies committed to emissions reduction in heat production.

Comprehensive Comparative Review of the Cement Experimental Testing Under CO2 Conditions

Global warming is presently one of the most pressing issues the planet faces, with the emission of greenhouse gasses being a primary concern. Among these gasses, CO2 is the most detrimental because, among all the greenhouse gasses resulting from anthropogenic sources, CO2 currently contributes the largest share to global warming. Therefore, to reduce the adverse effects of climate change, many countries have signed the Paris Agreement, according to which net zero emissions of CO2 will be achieved by 2050. In this respect, Carbon Capture and Sequestration (CCS) is a critical technology that will play a vital role in achieving the net zero goal. It allows CO2 from emission sources to be injected into suitable subsurface geological formations, aiming to confine CO2 underground for hundreds of years. Therefore, the confinement of CO2 is crucial, and the success of CCS projects depends on it. One of the main components on which the confinement of the CO2 relies is the integrity of the cement. As it acts as the barrier that restricts the movement of the sequestrated CO2 to the surface. However, in a CO2-rich environment, cement reacts with CO2, leading to the deterioration of its physical, chemical, transfer, morphological, and mechanical properties. This degradation can create flow paths that enable the leakage of sequestered CO2 to the surface, posing risks to humans, animals, and the environment. To address this issue, numerous studies have investigated the use of various additives in cement to reduce carbonation, thus enhancing the cement’s resistance to supercritical (sc) CO2 and maintaining its integrity. This paper provides a comprehensive review of current research on cement carbonation tests conducted by different authors. It includes detailed descriptions of the additives used, testing setups, curing conditions, methodologies employed, and experimental outcomes. This study will help to provide a better understanding of the carbonation process of the cement sample exposed to a CO2-rich environment, along with the pros and cons of the additives used in the cement. A significant challenge identified in this research is the lack of a standardized procedure for conducting carbonation tests, as each study reviewed employed a unique methodology, making direct comparisons difficult. Nonetheless, the paper provides an overview of the most commonly used temperatures, pressures, curing durations, and carbonation periods in the studies reviewed.

Ecofeminism: Women's Resistance to the Development of a Geothermal Power Plant Project in Padarincang, Serang Regency

This article examines the women's resistance movement in Padarincang District, Serang Regency, against the development of a Geothermal Power Plant, analyzed through an ecofeminist perspective. As human dependence on energy grows, there is increasing pressure to find alternative energy sources, such as geothermal energy, to meet daily needs. The proposed Geothermal Power Plant in Padarincang is part of Indonesia’s commitment to achieving Net Zero Emissions (NZE). However, local resistance emerged due to concerns over the potential economic and environmental impacts of the project. Using qualitative research methods and a case study approach, this study explores how women in Padarincang District contributed to the ecological movement. The findings reveal that the rejection stemmed from a lack of community engagement and socialization about the development, leading to fears of environmental degradation. Many locals did not understand that geothermal energy could offer new opportunities for renewable energy. The resistance, particularly from women, gave rise to an ecofeminist movement addressing these environmental issues. This research contributes to the literature on the intersection of gender and environmental concerns, particularly by highlighting the role of women in such movements.

Geological Net Zero and the need for disaggregated accounting for carbon sinks.

Achieving net zero global emissions of carbon dioxide (CO2), with declining emissions of other greenhouse gases, is widely expected to halt global warming. CO2 emissions will continue to drive warming until fully balanced by active anthropogenic CO2 removals. For practical reasons, however, many greenhouse gas accounting systems allow some "passive" CO2 uptake, such as enhanced vegetation growth due to CO2 fertilisation, to be included as removals in the definition of net anthropogenic emissions. By including passive CO2 uptake, nominal net zero emissions would not halt global warming, undermining the Paris Agreement. Here we discuss measures addressing this problem, to ensure residual fossil fuel use does not cause further global warming: land management categories should be disaggregated in emissions reporting and targets to better separate the role of passive CO2 uptake; where possible, claimed removals should be additional to passive uptake; and targets should acknowledge the need for Geological Net Zero, meaning one tonne of CO2 permanently restored to the solid Earth for every tonne still generated from fossil sources. We also argue that scientific understanding of net zero provides a basis for allocating responsibility for the protection of passive carbon sinks during and after the transition to Geological Net Zero.

The role of global waste management and circular economy towards carbon neutrality

Solid waste management is a cross-cutting issue that significantly influences multiple aspects of sustainable development globally. The waste sector is a major anthropogenic source of global greenhouse gas (GHG) emissions. Most global GHG assessments of waste management rely on generic data due to limitations in available data. This research used reflective inventory data for municipal solid waste (MSW) treatment systems related to the income levels of countries, resulting in more context-specific and comprehensive assessments of GHG emissions. This study aims to assess life cycle GHG emissions from the global MSW management sector for the years 2023, 2030, and 2050 and then analyses the global and regional waste management goals set by the United Nations Environment Programme (UNEP) and the European Union (EU) to identify hotspots in the MSW management systems and critical factors that influence GHG emissions from the waste sector. The study was conducted in accordance with the standards outlined in ISO 14067:2018. The results show that the average global GHG emissions from 1 tonne of MSW in 2023 based on the existing MSW management practices was approximately 89.7 kg CO2e. The major contributor was the open dumping of MSW, contributing almost 70 % of GHG emissions. The global MSW management sector emitted a total of 173.2 Mt CO2e GHG emissions in 2023. If no improvements are made to existing systems, GHG emissions from the waste sector are projected to increase to 203.4 Mt CO2e by 2030, and to 289.5 Mt CO2e by 2050. Achieving waste management goals can reduce GHG emissions by approximately 1 % to more than 160 %. The implementation of the circular economy in the waste sector has the potential to achieve net zero emissions from the global MSW management sector by 2030 and 2050. This study provides achievable MSW management targets for the world and highlights key factors to achieve carbon neutrality from the waste sector. Prioritising policies such as upgrading open dumps, standardising household-level waste separation procedures, minimising food waste, establishing national recycling targets, and promoting circular economy through a zero-waste approach could substantially reduce GHG emissions from the waste sector. These findings are important for the adoption of circular economy principles in MSW management systems to effectively support the pursuit of carbon neutrality goals.

Anticorrelation of net uptake of atmospheric CO2 by the world ocean and terrestrial biosphere in current carbon cycle models

Abstract. The rate at which atmospheric carbon dioxide (CO2) would decrease in response to a decrease in anthropogenic emissions or cessation (net zero emissions) is of great scientific and societal interest. Such a decrease in atmospheric CO2 on the centennial scale would be due essentially entirely to transfer of carbon into the world ocean (WO) and the terrestrial biosphere (TB), which are sink compartments on this timescale. The rate of decrease in excess atmospheric CO2 and the apportionment of this decrease into the two sink compartments have been examined in two prior model intercomparison studies, subsequent either to a pulse emission of CO2 or to abrupt cessation of anthropogenic CO2 emissions. The present study examines and quantifies inter-model anticorrelation in those studies in the net rate and extent of uptake of CO2 into the two sink compartments. Specifically, in each study the time-dependent coefficients characterizing the net transfer rate into the two sink compartments (evaluated as the net transfer rate normalized to excess atmospheric CO2 above the pre-pulse amount for the pulse experiment or as the net transfer rate divided by excess atmospheric CO2 above the preindustrial amount for the abrupt cessation experiment) were found to exhibit strong anticorrelation across the participating models. That is, models for which the normalized rate of uptake into the WO was high exhibited low uptake rate into the TB and vice versa. This anticorrelation in net transfer rate results in anticorrelation in net uptake extent into the two compartments that is substantially greater than would be expected simply from competition for excess CO2 between the two sink compartments. This anticorrelation, which is manifested in diminished inter-model diversity, can lead to artificially enhanced confidence in current understanding of the consequences of potential future reductions of CO2 emissions and in the global warming potentials of non-CO2 greenhouse gases relative to that of CO2.

Industrial Organizations Adapting to the Novel EU Taxonomy While Developing Socio-Technical Systems: A Literature Review

The EU taxonomy defines criteria for economic activities committed to a net zero emission by 2050, and other environmental goals. Its overall goal is to direct investments to economic activities aligned with the European Green Deal and, thereby, classified as sustainable. For industrial organizations, there is an urgent need to develop adaptive capabilities to meet the requirements set by the new taxonomy. The present scoping review contributes by analyzing academic publications on this topic through the lens of a complex science and systems approach. It analyzes academic publications on the EU taxonomy, related to industrial organizations and their development of socio-technical systems. At the initial stage, 526 scientific publications were retrieved from three web repositories (Scopus, World of Science, and Scholar). Only eight publications matched the selection criteria and constitute the data of this study. Results indicate that there is a lack of holistic perspectives and an unbalanced system response to the EU taxonomy. Adopting a systems approach can help industrial organizations navigate the intricate dynamics of a sustainable transition, striking a balance between adhering to the EU taxonomy and maintaining market competitiveness. The findings emphasize the importance of trans-disciplinary approaches and the need for agile and adaptive ways of learning inside industrial organizations.

Evaluating Deep Learning Networks Versus Hybrid Network for Smart Monitoring of Hydropower Plants

One of the main goals of the International Energy Agency (IEA) is to manage and utilize clean energy to achieve net zero emissions by 2050. Hydropower plants can significantly contribute to this goal as they are vital components of the global energy infrastructure, providing a clean, safe, and sustainable power source. Accordingly, there is great interest in developing methods to prevent errors and anomalies and ensure full operational availability. With modern hydropower plants equipped with sensors that capture extensive data, machine learning algorithms utilizing these data to detect and predict anomalies have gained research attention. This paper demonstrates that deep learning algorithms are particularly powerful in predicting time series. Three well-known deep learning networks are examined and compared to previous approaches, followed by the introduction of a new, innovative hybrid network. Using real-world data from two hydropower plants, the hybrid model outperforms individual deep learning models by achieving more accurate fault detection, reducing false positives, offering early fault prediction, and identifying faults several weeks before occurrence. These results showcase the hybrid network’s potential to enhance maintenance planning, reduce downtime, and improve operational efficiency in energy systems.

Agroforestry for Carbon Neutrality: An Effective Pathway to Net Zero

Agroforestry is a promising strategy to achieve carbon neutrality and net zero emission, aiming towards the balance between greenhouse gas emissions and equal amount of carbon removal through sequestration Among several methods of carbon sequestration, agroforestry stands out for its unique ability to simultaneously sequester carbon while reducing greenhouse gas emissions, particularly nitrous oxide (N2O) emissions associated with chemical fertilizer use in conventional agriculture. These systems store carbon through multiple pathways like, in above-ground biomass, below-ground root systems, and enhanced soil organic carbon accumulation while maintaining the agricultural productivity. Acknowledged under the afforestation and reforestation programs of the Kyoto Protocol, agroforestry has attracted interest for its several advantages from both industrialized and developing countries for its multifaceted benefits, including its potential to combat desertification and reduce anthropogenic emissions. Beyond carbon sequestration, it enhances soil fertility, supports biodiversity conservation, and provides economic diversification for farmers through multiple income streams. The role of REDD+ (Reducing Emissions from Deforestation and Forest Degradation) negotiations in extending the Kyoto Protocol's second commitment period has further strengthened agroforestry's position in global climate action, particularly through the development of REDD offset credits in compliance carbon markets. The World Agroforestry Centre defines agroforestry as a dynamic, ecologically based natural resources management system that integrates trees on farms and in the agricultural landscape, diversifying and sustaining production for increased social, economic, and environmental benefits. The Association for Temperate Agroforestry (AFTA) defines it as an intensive land management system that optimizes the benefits from biological interactions created when trees and/or shrubs are deliberately combined with crops and/or other natural resources. This review article critically examines agroforestry's crucial role as an effective pathway toward achieving carbon neutrality and net zero goals, synthesizing current knowledge and future prospects.

Durability of carbon dioxide removal is critical for Paris climate goals

Carbon Dioxide Removal is essential for achieving net zero emissions, as it is required to neutralize any residual CO2 emissions. The scientifically recognized definition of Carbon Dioxide Removal requires removed atmospheric CO2 to be stored “durably”; however, it remains unclear what is meant by durably, and interpretations have varied from decades to millennia. Using a reduced-complexity climate model, here we examined the effect of Carbon Dioxide Removal with varying CO2 storage durations. We found that storage duration substantially affects whether net zero emissions achieve the desired temperature outcomes. With a typical 100-year storage duration, net zero CO2 emissions with 6 GtCO2 per year residual emissions result in an additional warming of 0.8 °C by 2500 compared to permanent storage, thus putting the internationally agreed temperature limits at risk. Our findings suggest that a CO2 storage period of less than 1000 years is insufficient for neutralizing remaining fossil CO2 emissions under net zero emissions. These results reinforce the principle that credible neutralization claims using Carbon Dioxide Removal in a net zero framework require balancing emissions with removals of similar atmospheric residence time and storage reservoir, e.g., geological or biogenic.

Assessing the role of circular economy and green innovation in mitigating carbon emissions in the Visegrad countries

The shift towards a circular economy is an essential measure in achieving sustainable development because it seeks to separate economic expansion from resource use and environmental deterioration. To meet the European Union green deal, waste management, and the net zero emissions targets various countries are developing and adopting prudent strategies. This study investigates the dynamic affiliation between circular economy (CIR), green innovation (INV), renewable energy (REE), economic progress (GDP), and urbanisation (URB) on carbon emissions (CO2) in the Visegrad (V4) countries, comprising the Czech Republic, Hungary, Poland, and Slovakia. Using the CS-ARDL technique and quantile regression, data curation from 1990-2022 was analysed after checking for cross-sectional, unit root, and cointegration. The outcome demonstrates that circular economy, green innovation, and renewable energy had a negative effect on carbon emissions. In addition, GDP and URB had an immaterially positive influence on carbon emissions. Lastly, the quantile regression confirmed that the study provides useful information for policymakers and stakeholders in the Visegrad countries. It emphasised how important it is to take a broad approach to circular economy initiatives, support eco-friendly innovations, carry out renewable energy projects, and manage the urbanisation process well to achieve long-term economic growth and environmental health.

Climate Change and the Struggle for Climate Justice

Climate change is one of the greatest global challenges. The phenomenon and actions taken to address it have thrown up some contentious issues. One of such issues is climate justice. This paper analyses the bases for climate justice and the attempts at achieving it. The basic sources of data were the publications/documents of the United Nations Framework Convention on Climate Change (UNFCCC) secretariat and the Intergovernmental Panel on Climate Change (IPCC). Information was also obtained from the publications and websites of the climate negotiation blocs, such as G77 + China and Alliance of Small Island States (AOSIS), and several Civil Society Organisations (CSOs) such as Climate Action Network, Oxfam, GreenPeace and Third World Network. The climate justice struggle has been necessitated mainly by two driving forces. These are the experiences of the impact of climate change and the environmental legal principles that have emerged from environmental and climate change challenges. In spite of the fact that climate change and its impact are global, vulnerabilities vary across regions and socio-economic groups. The disproportionate impact of climate change is one of the drivers of the struggle for climate justice. The environmental/climatic legal principles that have formed bases for the climate justice struggle derive largely from UNFCCC, the Rio Declaration and the Paris Agreement. They are, to an extent, related to the Principle of Disproportionate Climate Burden. The principles include Common But Differentiated Responsibilities, Polluter Pays, No-Harm (to others) and Beneficiary Pays. Strategies employed in the struggle for climate justice include advocacy, focused negotiations at CoPs, protests/strikes, and litigation. Although, the developing countries have been the leaders in the struggle for climate justice, CSOs have been particularly prominent. The demand for increased financing of climate mitigation and adaptation has been characteristic. The struggle has resulted in more climate action. However, the ultimate focus must be the achievement of net zero emissions.

A dynamic modelling approach to explore zero emission building stock opportunities towards 2050 – Case study of a university campus

The building sector has a significant influence on energy use and environmental impact. When observing a university campus, reduction of energy use is a complex issue due to the variety of building types, usage, building construction age, and different implementation of improvement measures. To investigate how energy efficiency measures on a single building may influence the entire campus, a combination of building energy simulation and a scenario-based aggregation method using dynamic material flow analysis principles was implemented. This study investigated possible energy efficiency measures at a university campus in Trondheim, Norway. Scenario analysis was used to identify the most critical factors for future development and to evaluate to what extent the campus might develop towards a net zero-emission campus during the period 2017–2050. Four scenarios were introduced including two aspects: renovation of the existing building stock and changes in campus energy supply systems. The results on energy efficiency packages highlighted that saving potentials were highly dependent on the construction period of the buildings. The package combining envelope renovation and operation improvements showed the highest savings. The findings indicated that advanced renovation, including extensive use of heat pumps, might be the most promising strategy for reducing energy demand by 26 %.

IAQ and ventilation measurements at the “ZEB Laboratory” office building in Norway

This study aims to assess indoor environmental quality (IEQ) within a Zero Emission Building (ZEB) office in Norway, focusing on occupant impact (CO2, temperature, humidity) and materials/substances influence (formaldehyde, particulate matter (PM2.5), total volatile organic compounds (TVOC)). It presents a detailed data collection spanning 14 months from March 30th, 2022, to June 1st, 2023.Occupancy varied significantly, affecting measured indoor air quality (IAQ) parameters, with the lowest temperatures recorded on the second floor and specific areas like the canteen experiencing temperature drops during low usage times. Relative humidity levels remained over 20% in winter despite the building's low occupancy, a notable aspect given Norway's dry winters. PM2.5 levels stayed below World Health Organization (WHO) guidelines, indicating effective pollution management.The study also evaluates the impact of reducing the ventilation rates on IAQ, noting no significant IAQ compromise. An analysis correlating IAQ measurements with building occupants' satisfaction post-intervention revealed that temperature is the most significant factor affecting satisfaction levels, excluding acoustic satisfaction. Occupants generally reported satisfaction with the indoor environmental quality (IEQ), with specific dissatisfaction tied to thermal environment and IAQ, suggesting the importance of temperature control in occupant perception.This research not only provides valuable insights into IEQ management in Zero Energy and Zero Emission office buildings but also emphasizes the critical role of indoor temperature and the potential of wooden structures to stabilize humidity levels, contributing to occupant comfort and satisfaction.

Stronger NDCs With Cities, States, and Regions: Recommendations for National Governments

Climate change poses an unprecedented threat to societies and ecosystems worldwide. Without the rapid reduction of greenhouse gas (GHG) emissions across the globe and bold action to reduce climate impacts, the world will face devastating consequences to be felt for generations to come. Yet current climate commitments are not in line with pathways needed to achieve net zero emissions and meet the goals of the Paris Agreement. Countries can significantly enhance the ambition of their Nationally Determined Contributions (NDCs) through a more collaborative and integrated approach with subnational governments to fully align with the Paris Agreement goals. This document supports national governments in the facilitation of input from subnational governments in the NDC development process. It has been written with the United Nations Framework Convention on Climate Change’s 2025 NDC deadline in mind, but it will support countries beyond this milestone and can be considered a tool for designing all successive NDCs.

Economic Strategies and Efficiency of Power Plants in Indonesia to Achieve Net Zero Emissions

Economic Strategies and Efficiency of Power Plants in Indonesia to Achieve Net Zero Emissions