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Showing 1–16 of 16 results
Advanced filters: Author: Ajay Gambhir Clear advanced filters

  • Emerging limitations on climate and low-carbon technology would require adjusting our 15.C climate change mitigation pathways. However, this could increase average annual emissions reductions to around 3GtCO2/year using a broad portfolio of mitigation measures.

    • Ajay Gambhir
    • Shivika Mittal
    • Jason A. Lowe
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-13

  • This study investigates the role of off-grid solar in achieving SDG7 in Africa, focusing on understanding the impact of carbon pricing and supply reliability. It uses high-resolution spatial analysis and demand modelling to explore policy interventions for universal electricity access.

    • Hamish Beath
    • Shivika Mittal
    • Ajay Gambhir
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-14

  • Modelled low-carbon pathways rarely incorporate processes reflecting social and political realities. Now two studies rise to this challenge by exploring the implications of a landmark initiative to phase out coal, showing that we need greater political ambition for faster transitions to keep a 1.5 °C outcome in sight.

    • Ajay Gambhir
    News & Views
    Nature Climate Change
    Volume: 13, P: 117-118

  • Carbon emission reduction measures have widely differing energy consumptions that have not been systematically compared. Babacan et al. estimate comparable energy use per unit emission reduction of various emission reduction measures, from efficiency improvements to renewable electricity generation to carbon removal.

    • Oytun Babacan
    • Sven De Causmaecker
    • Jenny Nelson
    Research
    Nature Energy
    Volume: 5, P: 720-728

  • Direct Air Carbon Capture and Storage (DACCS) is not considered in Integrated Assessment Models. Here the authors make comparisons using multi-model regarding the role of DACCS in 1.5 and 2 degree scenarios and find that DACCS allows to postpone mitigation and reduce the climate policy costs.

    • Giulia Realmonte
    • Laurent Drouet
    • Massimo Tavoni
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-12

  • This paper proposes a framework to assess systemic risks that compound and cascade within and between systems. This emphasizes political economy and transformations, as well as trans-disciplinarity and diverse participation, evidence and methods.

    • Ajay Gambhir
    • Michael J. Albert
    • Ruth Richardson
    ReviewsOpen Access
    Nature Communications
    Volume: 16, P: 1-14

  • Although many countries have strengthened their emissions reduction pledges, their ability to limit the warming outcomes is still in question. A multimodel analysis demonstrates that these trajectories are in line with the 2 °C target but countries probably face feasibility challenges to achieve them.

    • Dirk-Jan van de Ven
    • Shivika Mittal
    • Alexandros Nikas
    Research
    Nature Climate Change
    Volume: 13, P: 570-578

  • Scenarios are the primary tool for examining how current decisions shape the future, but the future is affected as much by out-of-ordinary extremes as by generally expected trends. Energy modellers can study extremes both by incorporating them directly within models and by using complementary off-model analyses.

    • David L. McCollum
    • Ajay Gambhir
    • Charlie Wilson
    Comments & Opinion
    Nature Energy
    Volume: 5, P: 104-107

  • Assessing the cost of climate change mitigation is essential to policy-making, yet for many the perception remains that meeting climate goals will entail economic loss. This Perspective unpacks key aspects of mitigation cost estimates to clarify interpretation and discussion of costs.

    • Alexandre C. Köberle
    • Toon Vandyck
    • Joeri Rogelj
    Reviews
    Nature Climate Change
    Volume: 11, P: 1035-1045

  • Reference scenarios are used to evaluate different mitigation scenarios, allowing understanding of their relative strengths and weaknesses. This Perspective considers the appropriate use of reference scenarios in mitigation analysis across different policy contexts.

    • Neil Grant
    • Adam Hawkes
    • Ajay Gambhir
    Reviews
    Nature Climate Change
    Volume: 10, P: 605-610

  • In the European Union, current climate policies improve energy- and carbon- as well as inequality-related aspects of sustainability; future net-zero emissions pathways further improve population health and agricultural productivity, according to an integrated assessment modelling analysis.

    • Jorge Moreno
    • Lorenza Campagnolo
    • Marc Vielle
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 5, P: 1-14