How China could be carbon neutral by mid-century

Mallapaty, Smriti

doi:10.1038/d41586-020-02927-9

Cited by 755 publications

(279 citation statements)

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“…The enhanced ambition of these top two emitting countries would be very important for boosting global climate action to levels consistent with the Paris goal. To further demonstrate the economic mutual benefits of cross-regional emission mitigation collaboration, we conduct a hypothetical experiment based on Scenario SSP2-RCP4.5, in which (although with a recent ambitious pledge for carbon neutrality 33,34 ). We find that the RCC of the European Union would decrease significantly from US$ 97.2 per tCO 2 (89.7-114.7) to US$ 90.1 per tCO 2 (82.5-105.7).…”

Section: Main Textmentioning

confidence: 99%

“…These emitters could enhance their ambition not only because they are often major emitters but also because they are economically more suitable regions of carbon mitigation (compared to other regions). China's political leadership has announced their intention to become carbon neutral before 2060 33,34 , and it is expected that the country will announce substantially strengthened emission mitigation ambition in its next NDCs, although the details are yet to be released. The United States will very likely re-join the Paris Agreement and might even enhance their ambition under the newly elected political leadership 35 .…”

Section: Main Textmentioning

confidence: 99%

“…These developing countries might need external financial and technical aids through international collaborations to enhance their affordability, capability and thus ambition of carbon mitigation. Figure 1 To further demonstrate the economic mutual benefits of cross-regional emission mitigation collaboration, we conduct a hypothetical experiment based on Scenario SSP2-RCP4.5, in which amount (30.4 (28.3-40.6) million tCO 2 ) to China, a region with high RSM and low ambition (although with a recent ambitious pledge for carbon neutrality 33,34 ). We find that the RCC of the European Union would decrease significantly from US$ 97.2 per tCO 2 (89.7-114.7) to US$ 90.1 per tCO 2 (82.5-105.7).…”

Section: Main Textmentioning

confidence: 99%

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Contrasting Suitability and Ambition in Regional Carbon Mitigation

Du¹,

Liu²,

Cui³

et al. 2021

Preprint

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Substantially enhancing carbon mitigation ambition is a crucial step towards achieving the Paris climate goal. Yet this attempt is hampered by poor knowledge on the net economic effect of mitigation for each emitter, by taking into account potential cost and benefit. Here we use a global economic model with regional and sectoral disaggregation details to assess the mitigation costs for 27 major emitting countries and regions, and further contrast the costs against the potential benefits of mitigation valued as avoided social cost of carbon. We find substantial variabilities across these emitters in both cost and benefit of mitigating each ton of carbon dioxide and, more importantly, a strong negative spatial correlation between cost and benefit. The relative suitability of carbon mitigation, defined as the ratio of normalized benefit to normalized cost, shows great spatial mismatch with the mitigation ambition of emitters indicated in their first intended nationally determined contributions. China is relatively suitable for domestic carbon mitigation and could largely enhance their mitigation ambition. The European Union, which is economically less suitable to reduce domestic emissions, could work with many developing countries which are more suitable but less capable to reduce emissions. Our work provides important information to improve concerted climate action and formulate more efficient mitigation strategy.

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Section: Main Textmentioning

confidence: 99%

Section: Main Textmentioning

confidence: 99%

Section: Main Textmentioning

confidence: 99%

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Contrasting Suitability and Ambition in Regional Carbon Mitigation

Du¹,

Liu²,

Cui³

et al. 2021

Preprint

View full text Add to dashboard Cite

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“…This is the first long-term climate goal of China to limit carbon dioxide emissions to zero. That means China is not only under pressure to transition to a low-carbon energy system, but also need to use negative emission technologies such as carbon capture utilization and storage (CCUS) (Mallapaty, 2020). However, this systemic shift has increased the demand for other types of resources, such as copper and nickel (Li et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Accounting and Management of Natural Resource Consumption Based on Input-Output Method: A Global Bibliometric Analysis

et al. 2021

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Resources and environment management have always been a research hotspot. In the context of sustainable development and environmental governance, scholars and policy makers have been increasing their research efforts on natural resource utilization and its environmental impact. By using the Web of Science Core Collection database, this article applies the bibliometric method to accomplish a systematic review about studies on accounting and management of natural resource consumption based on input-output method. The results indicate that both in terms of the quantity and quality of academic achievements and international cooperation, China is in high academic position and has made great contributions to the development in this research field. While energy and water account for a large proportion of the study objects, more attention is paid on the other kinds of natural resources, such as land, metal, and ocean. International trade is an eternal hot topic in this field. With the continuous progress of the multi-regional input-output model, the importance and feasibility in the analysis of sub-national level or region in the global supply chain gradually emerged. Combining input-output model with other methods can obtain more comprehensive and accurate results for scientific decision-making. Meanwhile, the uncertainty and limitations inherent in such models clearly need further attention.

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“…With the increase in CO 2 emissions due to the use of traditional energy sources such as coal-fired electricity and oil-powered cars, the global warming leading to the sea level rise, glaciers melting, and frequent extreme weather has become an issue of increasing concern all over the world. To address this challenge, the concept of “carbon neutrality” was coined in 2005 [ 1 , 2 ], which referred to an equilibrium between the CO 2 emissions in the atmosphere and the removal or capture of CO 2 from the atmosphere generating net zero emissions. Several effective strategies have been proposed to reduce the amount of CO 2 emissions, such as planting more trees, encouraging use of renewable energy sources, improving energy efficiency, and developing clean transportation.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Highly Textured 2D SnSe Layers with Tunable Electronic Properties for Hydrogen Evolution

Zhou

Wang

et al. 2021

Molecules

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Hydrogen is regarded to be one of the most promising renewable and clean energy sources. Finding a highly efficient and cost-effective catalyst to generate hydrogen via water splitting has become a research hotspot. Two-dimensional materials with exotic structural and electronic properties have been considered as economical alternatives. In this work, 2D SnSe films with high quality of crystallinity were grown on a mica substrate via molecular beam epitaxy. The electronic property of the prepared SnSe thin films can be easily and accurately tuned in situ by three orders of magnitude through the controllable compensation of Sn atoms. The prepared film normally exhibited p-type conduction due to the deficiency of Sn in the film during its growth. First-principle calculations explained that Sn vacancies can introduce additional reactive sites for the hydrogen evolution reaction (HER) and enhance the HER performance by accelerating electron migration and promoting continuous hydrogen generation, which was mirrored by the reduced Gibbs free energy by a factor of 2.3 as compared with the pure SnSe film. The results pave the way for synthesized 2D SnSe thin films in the applications of hydrogen production.

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How China could be carbon neutral by mid-century

Cited by 755 publications

References 0 publications

Contrasting Suitability and Ambition in Regional Carbon Mitigation

Contrasting Suitability and Ambition in Regional Carbon Mitigation

Accounting and Management of Natural Resource Consumption Based on Input-Output Method: A Global Bibliometric Analysis

Fabrication of Highly Textured 2D SnSe Layers with Tunable Electronic Properties for Hydrogen Evolution

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