Country-specific net-zero strategies of the pulp and paper industry

Dai, Min; Sun, Mingxing; Chen, Bin; Shi, Lei; Jin, Mingzhou; Man, Yi; Liang, Ziyang; de Almeida, Cecilia Maria Villas Bôas; Li, Jiashuo; Zhang, Pengfei; Chiu, Anthony S. F.; Xu, Ming; Yu, Huajun; Meng, Jing; Wang, Yutao

doi:10.1038/s41586-023-06962-0

Cited by 32 publications

(4 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…CH 4 emission heterogeneity across coal mines in 2019 appeared to be more evident than that from other anthropogenic sources (e.g., thermal power plants, iron, and steel plants), as reported in previous studies. ,,− Mitigation of coal CH 4 emissions may be possible by targeting ultra-emitters with high emission intensities, giving us valuable time to manage other greenhouse gases and emission sources that are more difficult to control in the short term. For long-term climate action, the key strategy to deeply cut coal CH 4 emissions continues to be reducing coal use and production through the energy transition to renewable energy sources.…”

Section: Discussionsupporting

confidence: 56%

Targeting Ultra-Emitters for Effective Methane Mitigation in China’s Coal Sector

Wang,

Zheng,

et al. 2024

ACS EST Air

View full text Add to dashboard Cite

The energy system fuels climate change as the largest emitter of global greenhouse gases, while a lack of transparent, infrastructure-level information undermines efforts to cut emissions. Coal mining has been the largest emitter of methane (CH4) in China over the past 10 years, which is not tracked at the mine level, and effective mitigation pathways have yet to be established. Herein, we develop a state-of-the-art CH4 emission database, comprising 3343 active coal mines in China, by harmonizing multisource information. The results suggest that China’s coal mines emitted 15.8 ± 5.1 million metric tons CH4 yr–1 in 2019. Those with CH4 emission intensities >2 standard deviations above the national mean accounted for 4% of China’s coal production, yet they generated 23% of China’s coal CH4 emissions. We project a steady decline in China’s coal CH4 emissions by >75% in 2100 compared to 2019 levels under three different scenarios, due to reduced coal demand during energy transition. Targeting ultra-emitters for mine closure will accelerate emission reductions in the midterm and achieve deep CH4 emission cuts by >92% in 2100, which buys us time to control global warming. Our idealized mine closure strategy serves as a cost-effective CH4 mitigation strategy to enable swift climate action.

show abstract

Section: Discussionsupporting

confidence: 56%

Targeting Ultra-Emitters for Effective Methane Mitigation in China’s Coal Sector

Wang,

Zheng,

et al. 2024

ACS EST Air

View full text Add to dashboard Cite

show abstract

“…Due to China's unbalanced economic development and energy distribution, the impacts of digital infrastructure on carbon emission reductions would naturally vary across regions: while the decarbonization of the digital economy would be more significant in the nation's eastern regions, it would not be as significant in the central and western regions (Wang et al 2022;Zhang et al 2022a). After all, disparities in resource endowments, economic structures, and energy sources yield distinct carbon emissions in China's data centers across regions (Dai et al 2024). Yet, research on this subject has paid insufficient attention to data center carbon emission reductions regionally despite the clear, significant regional differences in China.…”

Section: Introductionmentioning

confidence: 99%

Greening China’s digital economy: exploring the contribution of the East–West Computing Resources Transmission Project to CO2 reduction

Xie,

Han,

Tan

2024

Humanit Soc Sci Commun

View full text Add to dashboard Cite

China’s East–West Computing Resources Transmission Project (EWCRT Project) is a unique and innovative path toward developing China’s green digital economy. The EWCRT Project consists of building transregional digital infrastructure, including eight data center hubs and 10 data center clusters across China. Our estimations indicate that the EWCRT Project could result in a reduction of 2125 metric tons (Mt) of CO2 between 2020 and 2050. Combined with other improvement measures, such as an increase in power usage effectiveness (PUE) and a boost in the use of green electricity in these data centers, the project could result in a reduction of 9500 Mt of carbon emissions over the next three decades. Recognizing the heterogeneous makeup of data centers in general, it is crucial to identify diverse strategies that can transform each into “green engines” for the digital economy. Therefore, in this study, we use fuzzy-set qualitative comparative analysis (fsQCA) to characterize the complex conditions of different data center configurations. By doing so, we highlight differentiated strategies for data centers to support the greening of the digital economy.

show abstract

“…The construction industry plays a pivotal role in global development, driving economic growth and infrastructure expansion (Dai et al 2023). However, the conventional production of concrete, a fundamental building material, is associated with significant environmental and sustainability challenges.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Reinforcement: Exploring Hypo Sludge and Sisal Fiber Integration in M25 Grade Concrete for Eco-Friendly Solutions and Assessing Environmental Impact

2024

Preprint

View full text Add to dashboard Cite

This study investigates the improvement of mechanical strength in M25 grade concrete through the incorporation of Hypo sludge and the addition of 2% novel sisal fiber, comparing the results with conventional concrete. Hypo sludge, a paper industry waste, serves as a supplementary cementitious material, contributing to sustainability. The novel sisal fiber, chosen for its unique properties, aims to enhance the concrete's compressive and flexural strength. Results indicate a significant improvement in compressive strength, with a simultaneous reduction in permeability and increased resistance to environmental factors. The incorporation of Hypo sludge and novel sisal fiber contributed to the formation of a denser and more durable concrete matrix. Durability tests, including freeze-thaw resistance and chloride ion penetration, revealed superior performance compared to conventional concrete. The mean compressive strength for Conventional Concrete (CC) was 33.98 N/mm², whereas Hypo sludge Concrete (HSC) exhibited a higher mean of 37.46 N/mm². The highest mean compressive strength was observed in Hypo sludge + Sisal Fiber Concrete (HSFC) at 40.18 N/mm², achieved with an optimal combination of 30% Hypo sludge and 2% novel sisal fiber. In terms of flexural strength, CC had a mean of 3.79 N/mm², Hypo sludge Concrete HSC showed an increased mean of 4.47 N/mm², and Hypo sludge + Sisal Fiber Concrete HSFC demonstrated the highest mean at 5.79 N/mm², with the optimum blend of 30% Hypo sludge and 2% novel sisal fiber contributing to this enhanced performance. Additionally, the mean durability values were 29.72 for CC, 32.42 for HSC, and the highest at 35.56 for HSFC with the optimized mixture. The result, denoted by Mauchly's W statistic, indicates no significant departure from sphericity (W = 0.806, Approx. Chi-Square = 3.459, df = 2, p = 0.177). These results underscore the positive impact of the optimal combination of 30% Hypo sludge and 2% novel sisal fiber on both mechanical and durability properties in M25 grade concrete. This research contributes to the evolving field of eco-friendly construction practices and novel material applications in concrete engineering.

show abstract

Country-specific net-zero strategies of the pulp and paper industry

Cited by 32 publications

References 73 publications

Targeting Ultra-Emitters for Effective Methane Mitigation in China’s Coal Sector

Targeting Ultra-Emitters for Effective Methane Mitigation in China’s Coal Sector

Greening China’s digital economy: exploring the contribution of the East–West Computing Resources Transmission Project to CO2 reduction

Sustainable Reinforcement: Exploring Hypo Sludge and Sisal Fiber Integration in M25 Grade Concrete for Eco-Friendly Solutions and Assessing Environmental Impact

Contact Info

Product

Resources

About