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  • Report
    Zachariah M, Clarke B, Vahlberg M, Pereira Marghidan C, Singh R, Sengupta S, Otto F, Pinto I, Mistry M, Arrighi J, Gale S, Rodriguez Let al., 2024,

    Climate change made the deadly heatwaves that hit millions of highly vulnerable people across large parts of Asia more frequent and extreme

    , Publisher: Centre for Environmental Policy
  • Journal article
    Syafina P, Oluleye G, 2024,

    A comparative assessment of policy induced diffusion pathways for utility scale solar PV: case study of Indonesia

    , Frontiers in Sustainable Energy Policy, Vol: 3, ISSN: 2813-4982

    Lack of effective policies hinder the uptake of Utility-scale solar PV, even though they are projected to play a pivotal role in achieving Indonesia’s 2050 net-zero energy target. This study seeks to identify a cost-effective pathway to increase the capacity of utility-scale solar PV in Indonesia through supportive policies that ensure equitable cost distribution between the government and industry. A novel Market Penetration Optimization Model is developed and applied in simulation mode to assess existing policies, and optimization mode to determine new policy recommendations and compare three policy induced diffusion pathways. Results show that current price-based policies are insufficient to stimulate growth in the solar PV market, only covering approximately 13% of the investment cost required by the industry. Thus, necessitating a reactivation of Feed-in-Tariffs. The optimal tariffs rates required range from 0.39 to 1.47 cents /kWh for the most economic pathway during the initial ten-year post-construction period. The Innovation Diffusion Theory-based pathway necessitates the lowest initial investment cost while yielding the highest revenue from electricity sales, demonstrating its superior cost-effectiveness compared to both the supply-based and linear pathways. This study enriches the literature by exploring the financial implications of policy induced diffusion pathways.

  • Journal article
    Akkiraju K, Rao R, Hwang J, Giordano L, Wang XR, Crumlin E, Weinberger DS, Shao-Horn Yet al., 2024,

    Regulating Oxygen Activity of Perovskites to Promote Activity and Selectivity for Methanol Oxidation to Formaldehyde

    , ACS CATALYSIS, Vol: 14, Pages: 7649-7663, ISSN: 2155-5435
  • Report
    Barnes C, Paton S, Stallard RF, de Lima H, Clarke B, Vahlberg M, Sivanu S, Amakona A, Izquierdo K, Otto F, Zachariah M, Philip S, Mistry M, Singh R, Arrighi Jet al., 2024,

    Low water levels in Panama Canal due to increasing demand exacerbated by El Niño event

    , Publisher: Centre for Environmental Policy
  • Journal article
    Lewis-Brown E, Jennings N, Mills M, Ewers Ret al., 2024,

    Comparison of carbon management and emissions of universities that did and did not adopt voluntary carbon offsets

    , Climate Policy, Vol: 24, Pages: 706-722, ISSN: 1469-3062

    The urgent need to reduce greenhouse gas emissions, remove carbon from the atmosphere and stabilize natural carbon sinks has led to the development of many carbon management measures, increasingly including voluntary carbon offsets (VCOs). We studied carbon management in universities, institutions with large carbon footprints and considerable influence in climate science and policy fora. However, concerns that VCOs may deter adopters (including universities) from adopting other carbon reduction measures and limit emissions reductions, for example, through moral hazard, have been raised but understudied. We compared the carbon management characteristics (priorities, policies, practices and emissions) of universities that did and did not adopt VCOs. We found adopters measured carbon emissions for longer, and had set targets to reach net zero earlier than had non-adopters. Adopters of VCOs also undertook more carbon management practices in both 2010 and 2020 than non-adopters. We also found that both adopters and non-adopters significantly increased their carbon management practices over the decade studied, but with no difference between groups. Gross CO2 emissions were reduced significantly over time by adopters of VCOs but not by non-adopters, whereas carbon intensity and percentage annual emissions reductions did not relate to adoption status. Consequently, our study showed no indication of mitigation deterrence due to adoption of VCOs at the universities studied. Rather, greater emissions reductions correlated with earlier net zero target dates, and a higher number of policies and carbon management practices. However, our study was constrained to universities that were affiliated with a national environmental network, so research beyond these organizations, and with individuals, would be useful. The survey was voluntary, exposing the study to potential self-selection bias so the findings may not be generalized beyond the study group. Finally, we found the carbon ac

  • Report
    Zachariah M, Kimutai J, Barnes C, Gryspeerdt E, Seneviratne SI, Almazroui M, Vautard R, Zhang X, Pinto I, Vahlberg M, Sengupta S, Saeed F, Otto F, Clarke B, Philip S, Lohmann U, Wernli H, Mistry M, El Hajj R, Singh R, Arrighi Jet al., 2024,

    Heavy precipitation hitting vulnerable communities in the UAE and Oman becoming an increasing threat as the climate warms

  • Journal article
    Sparks N, Toumi R, 2024,

    The Imperial College Storm model (IRIS) dataset

    , Scientific Data, Vol: 11, ISSN: 2052-4463

    Assessing tropical cyclone risk on a global scale given the infrequency of landfalling tropical cyclones (TC) and the short period of reliable observations remains a challenge. Synthetic tropical cyclone datasets can help overcome these problems. Here we present a new global dataset created by IRIS, the ImpeRIal college Storm model. IRIS is novel because, unlike other synthetic TC models, it only simulates the decay from the point of lifetime maximum intensity. This minimises the bias in the dataset. It takes input from 42 years of observed tropical cyclones and creates a 10,000 year synthetic dataset of wind speed which is then validated against the observations. IRIS captures important statistical characteristics of the observed data. The return periods of the landfall maximum wind speed are realistic globally.

  • Journal article
    Dang C, Shan M, Tian E, Cao XE, Xu Y, Shen J, Zhang T, Xiong J, Mo J, Xu G, Zhu Met al., 2024,

    Silk-crosslinked polyester fibrous air filters with electrostatic interfacial mediation for high- efficiency and low-resistance air purification

    , Device, Vol: 2

    Similar to most air filtration strategies, fibrous filters have the trade-off between efficiency and air flow. An electrostatic-assisted electret filter may help improve filtration efficiency while maintaining air flow. In this work, we present a silk-nanofiber-modified polyethylene terephthalate (SNF@PET) fiber filter with an improved compression strength and modulus by 1.9 and 1.6 times respectively, at 2 wt % SNF content, increasing the structural stability of the filter to support a higher air flow. The filtration efficiencies of the SNF@PET fiber membrane for PM<inf>0.3-0.5</inf> and PM<inf>0.5-1</inf> are up to 99.7% and 99.6%, respectively, with a corresponding pressure drop of 3.3 Pa at 0.1 m s<sup>−1</sup> air velocity. The SNF@PET fiber filter showed a slight decrease in filtration efficiency to 98.3% for PM<inf>0.3-0.5</inf> and a small increase of pressure drop to 3.7 Pa (from 3.3 Pa) after 400 h.

  • Journal article
    Kwon S, Stoerzinger KA, Rao R, Qiao L, Goddard III WA, Shao-Horn Yet al., 2024,

    Facet-Dependent Oxygen Evolution Reaction Activity of IrO<sub>2</sub> from Quantum Mechanics and Experiments

    , JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 146, Pages: 11719-11725, ISSN: 0002-7863
  • Report
    Halkyard S, Levey S, Amer H, Brogan C, Butler L, Cannon C, Davenport F, Duncan C, Dunning H, Evanson D, Ford P, Fredenburgh J, Gokdemir T, Govan E, Heyburn J, Jennings N, Johns S, Kuchapski N, McNally C, Mundell I, Murphy V, Ross P, Silverman D, Singleton L, Taylor J, A Thousand Monkeys, Wilson J, Wynton Let al., 2024,

    Grantham Institute Outlook 2023-2024

    , www.imperial.ac.uk/grantham

    The Grantham Institute Outlook magazine provides an overview of the climate and environmental research underway at Imperial College London, encompassing both recent achievements and future plans.

  • Journal article
    Ye Q, Gao Y, Patel RJ, Cao B, Li A, Powell J, Cai Y, Marín-Beltrán I, Tao Z, Ejaz M, Zaidi SS, Gupta A, See MS, Cao XE, Fulco G, Lei C, Han S, Teng D, Bezerra P, Xia Y, Montesdeoca Molina BR, Zhang T, Heim AB, Uzonyi Aet al., 2024,

    Research beneficiaries speak.

    , Science, Vol: 384, Pages: 26-28
  • Journal article
    Riou J, Panczak R, Konstantinoudis G, Egger Met al., 2024,

    Area-level excess mortality in times of COVID-19 in Switzerland: geographical, socioeconomic and political determinants

    , EUROPEAN JOURNAL OF PUBLIC HEALTH, Vol: 34, Pages: 415-417, ISSN: 1101-1262
  • Journal article
    Zhu L, Atoufi A, Lefauve A, Kerswell RR, Linden PFet al., 2024,

    Long-wave instabilities of sloping stratified exchange flows

    , JOURNAL OF FLUID MECHANICS, Vol: 983, ISSN: 0022-1120
  • Journal article
    Patel DN, Matalon P, Oluleye G, 2024,

    A novel temporal mixed-integer market penetration model for cost-effective uptake of electric boilers in the UK chemical industry

    , Journal of Cleaner Production, Vol: 446, ISSN: 0959-6526

    The UK chemical industry is the largest consumer of natural gas for process heating and power generation, with an annual consumption of 26.3 TWh. Reduction in natural gas consumption and associated carbon emissions can be achieved through electrification of heat. However, the adoption of electric boilers is lethargic due to economic barriers. Hence, market-based policy interventions are required. This study aims to accelerate the adoption of electric boilers in the UK's chemical industry, aligning with the UK's ambitious 2035 industrial decarbonisation goals while considering economic impacts, by designing market-based policy interventions and comparing two adoption patterns. A novel multi-period Mixed-Integer Market Penetration Optimisation Model is developed and applied to inform decisions about transitioning from natural gas to electric boilers. The model is applied to a case study of all the heating systems (490 boilers) in the UK chemical industry from 1 MW to 60 MW boilers. Results show that effectively implementing a gas tax, electricity subsidy, annual grant and carbon tax can generate sufficient demand-pull to reduce the cost of electric boilers from 30 to 85 % depending on the boiler size. A carbon tax starting at £280 per tCO2e and reducing to £170 per tCO2e coupled with electricity subsidies is essential for this transition. The policies are designed such that a win-win is achieved between government and industry; specifically, revenue from the carbon tax and gas tax is used to support the grant and electricity subsidy thereby achieving cost neutrality for government. At 100 % uptake of electric boilers in 2033, the total carbon emissions reduce by 89 %, which is above the 2035 UK industry goal of 60 % reduction. The research establishes a robust policy timeline that can drive industrial electrification in the UK's chemical sector. It highlights the need for a multi-faceted approach, incorporating various policy instruments to overcome the ba

  • Journal article
    Liang C, Katayama Y, Tao Y, Morinaga A, Moss B, Celorrio V, Ryan M, Stephens IEL, Durrant JR, Rao RRet al., 2024,

    Role of Electrolyte pH on Water Oxidation for Iridium Oxides

    , JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 146, Pages: 8928-8938, ISSN: 0002-7863
  • Journal article
    Moss B, Svane KL, Nieto-Castro D, Rao RR, Scott SB, Tseng C, Sachs M, Pennathur A, Liang C, Oldham LI, Mazzolini E, Jurado L, Sankar G, Parry S, Celorrio V, Dawlaty JM, Rossmeisl J, Galan-Mascaros JR, Stephens IEL, Durrant JRet al., 2024,

    Cooperative Effects Drive Water Oxidation Catalysis in Cobalt Electrocatalysts through the Destabilization of Intermediates

    , JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 146, Pages: 8915-8927, ISSN: 0002-7863
  • Report
    Pinto I, Odoulami RC, Lawal KA, Olaniyan E, Ibrahim WA, Guigma K, Vahlberg M, Heinrich D, Marghidan CP, Vogel M, Arrighi J, Barnes C, Otto F, Philip S, Mistry M, Sengupta S, Kew S, Kimutai Jet al., 2024,

    Dangerous humid heat in southern West Africa about 4°C hotter due to climate change

  • Journal article
    Lefauve A, Couchman MMP, 2024,

    Data-driven classification of sheared stratified turbulence from experimental shadowgraphs

    , PHYSICAL REVIEW FLUIDS, Vol: 9, ISSN: 2469-990X
  • Report
    Ersoz A, Rhodes A, 2024,

    Delivering our future power system - an Energy Futures Lab briefing paper

    , Delivering Our Future Power System - An Energy Futures Lab Briefing Paper
  • Journal article
    Li S, Feng Y, Li Y, Deng S, Cao XE, Lee KB, Wang Jet al., 2024,

    Critical review on mobile direct air capture: Concept expansion, characteristic description, and performance evaluation

    , Matter, Vol: 7, Pages: 889-933, ISSN: 2590-2393

    The widespread adoption of direct air capture (DAC) is necessary for achieving net-zero emissions by 2050. However, on-site DAC development faces challenges like inconsistent technical solutions and significant initial investment. The proposal of mobile DAC offers an alternative technical route to scaling up DAC through distributed deployment, introducing a brand-new application scenario. Two types of mobile DAC are concerned, including integrating DAC with the existing transportation equipment and specialized mobile DAC devices for sniffing and capturing CO<inf>2</inf>. The detailed discussions cover the fundamental operation strategies and performance evaluation. Firstly, the mobile DAC in vehicles and ships is reviewed, focusing on integrating conventional DAC systems with common transportation. Then, the specialized devices for CO<inf>2</inf> sniffing and capturing, i.e., mobile DAC in low- and high-altitude aircraft, are proposed. This review envisions a future where mobile DAC technology is widely deployed in various human activity spaces, serving as a standard negative-emission solution.

  • Journal article
    Liu J, Wilkinson CE, Liu X, Wang M, Cao XEet al., 2024,

    Revisiting “quantity” and “quality” of science from young scholars

    , Matter, Vol: 7, Pages: 715-717, ISSN: 2590-2393

    Excessive attention has been paid to the quantity of research, with scientific institutions emphasizing metrics such as h-index, impact factors of journals, and the number of publications. Increasingly, researchers become superficial, impetuous, and fanatical in the quest for quantity rather than focusing on quality and making a real impact. In this paper, we call for revitalizing a rational and impartial attitude toward quantity and scientific impact.

  • Journal article
    Guo C, Benzie P, Hu S, de Nijs B, Miele E, Elliott E, Arul R, Benjamin H, Dziechciarczyk G, Rao RR, Ryan MP, Baumberg JJet al., 2024,

    Extensive photochemical restructuring of molecule-metal surfaces under room light

    , NATURE COMMUNICATIONS, Vol: 15
  • Report
    Jennings N, Paterson P, Whitmarsh L, Howarth Cet al., 2024,

    What do the UK public think about the co-benefits that climate action can bring?

    This slide deck summarises findings from a nationally representative sample (on the basis of age, gender and ethnicity) of 1,021 people who were asked to share their opinions about the co-benefits of climate action. People were surveyed via the online survey platform Prolific on Monday 12th February 2024. The headline findings and recommendations are followed by a case study focused on homes that are more affordable to heat. The insights in this slide deck build on findings from a Grantham report published in October 2023, How do UK citizens perceive the co-benefits of climate action? which included survey and focus groups with members of the UK public.

  • Journal article
    Tong Z, Guan S, Zhang Q, Cao XKEet al., 2024,

    Data-driven energy efficient speed planning for battery electric industrial vehicles: Forklift as a case study

    , Journal of Cleaner Production, Vol: 443, ISSN: 0959-6526

    Battery electric industrial vehicles (BEIVs) offer significant environmental protection and decarbonization potential for rapidly growing logistics and transportation sectors in China. However, the limited driving range remains a major obstacle to the widespread adoption of BEIVs. Eco-driving is an effective solution that can improve energy efficiency and extend the driving range of vehicles by controlling driving behavior and speed. Therefore, this paper introduces an energy efficient speed planning method for BEIVs, in which data-driven models are developed to estimate energy consumption. Real-world driving data collected from a BEIV are used to model the energy consumption by curve fitting, random forest, and LSTM. The speed planning process is considered a Markov Decision Process, which is solved using Dynamic Programming and Q-learning, respectively. The case study of a battery electric forklift shows that speed planning can reduce energy consumption by 13%–27% compared to time-optimal speed, while only increasing the driving time by 10%–20%.

  • Journal article
    Liu F, Toumi R, Zhang H, Chen Det al., 2024,

    Impact of precipitation on ocean responses during a tropical cyclone

    , Journal of Physical Oceanography, Vol: 54, Pages: 895-909, ISSN: 0022-3670

    Precipitation plays a crucial role in modulating upper-ocean salinity and the formation of the barrier layer, which affects the development of tropical cyclones (TCs). This study performed idealized simulations to investigate the influence of precipitation on the upper ocean. Precipitation acts to suppress the wind-induced sea surface reduction and generates an asymmetric warming response with a rightward bias. There is substantial vertical change with a cooling anomaly in the subsurface, which is about 3 times larger than the surface warming. The mean tropical cyclone heat potential is locally increased, but the net effect across the cyclone footprint is small. The impact of precipitation on the ocean tends to saturate for extreme precipitation, suggesting a nonlinear feedback. A prevailing driver of the model behavior is that the freshwater flux from precipitation strengthens the stratification and increases current shear in the upper ocean, trapping more kinetic energy in the surface layer and subsequently weakening near-inertial waves in the deep ocean. This study highlights the competing roles of TC precipitation and wind. Because the TC category is weaker than category 3, the warming anomaly is caused by reduced vertical mixing, whereas for stronger storms, the advection process is most important.

  • Report
    Clarke B, Thorne P, Ryan C, Zachariah M, Murphy C, McCarthy G, O'Connor P, Eresanya EO, Cahill N, Coonan B, Otto Fet al., 2024,

    Climate change made the extreme 2-day rainfall event associated with flooding in Midleton, Ireland more likely and more intense

    , Publisher: Centre for Environmental Policy
  • Report
    Zachariah M, Clarke B, Barnes C, Kimutai J, Sivanu S, Ybañez RL, Otto F, Philip S, Arrighi J, Falk K, Cruz FA, Avila F, Olaguera LM, Petilla CEet al., 2024,

    More effective early flood warning needed in exposed communities to reduce loss of lives with increasing heavy rainfall in Mindanao Island, southern Philippines

    , Publisher: Centre for Environmental Policy
  • Journal article
    Zhu L, Jiang X, Lefauve A, Kerswell RR, Linden PFet al., 2024,

    New insights into experimental stratified flows obtained through physics-informed neural networks

    , JOURNAL OF FLUID MECHANICS, Vol: 981, ISSN: 0022-1120
  • Report
    Kimutai J, Carrasco-Escaff T, Garreaud RD, Zachariah M, Barnes C, Libonati R, Keeping T, Villarroel Jiménez C, Muñoz Bravo F, Boisier JP, Santos Vega M, Vahlberg M, Sengupta S, Otto F, Clarke B, Munoz A, Rojas Corradi M, Mistry M, Philip S, Kew Set al., 2024,

    Despite known coastal cooling trend, risk of deadly wildfires in central Chile increasing with changing land management in a warming climate

  • Journal article
    Sietsma AJ, Theokritoff E, Biesbroek R, Canosa IV, Thomas A, Callaghan M, Minx JC, Ford JDet al., 2024,

    Machine learning evidence map reveals global differences in adaptation action

    , ONE EARTH, Vol: 7, ISSN: 2590-3330

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