Browsing by Author "Ansari, Faiz Ahmad"

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    India's renewable energy research and policies to phase down coal: Success after Paris agreement and possibilities post-Glasgow Climate Pact
    (Elsevier Ltd, 2023) Singh, Kripal; Meena, Ram Swaroop; Kumar, Sandeep; Dhyani, Shalini; Sheoran, Seema; Singh, Har Mohan; Pathak, Vinayak V.; Khalid, Zaira; Singh, Anita; Chopra, Kapil; Bajar, Somvir; Ansari, Faiz Ahmad; Gupta, Sanjay Kumar; Varjani, Sunita; Kothari, Richa; Tyagi, Vineet Veer; Singh, Bhaskar; Byun, Chaeho
    In Paris Climate Agreement (COP 21) in December 2015, India committed to cut its carbon (C) emissions by 30�35% of its GDP (gross domestic product) and attain 40% of installed energy from renewables by 2030. In the Glasgow Climate Pact (COP 26), an agreement developed at COP26 of UNFCCC in November 2021, India committed to enhancing its renewable energy (RE) capacity to 500 GW and installing 50% of its power from renewable resources by 2030. It is projected that this will help India to reduce its C emissions by 1Bt, reduce emission intensity to the economy by 45% by 2030, and meet the goal of C neutral economy by 2070. Realization of these highly ambitious commitments made at COP26 can be determined by the nation's growth in REs after COP21. Therefore, this article reviews the overall development of renewable energies � solar, wind, biomass, hydrogen, and hydro � in India after COP21 by the end of December 2021. This review provides detailed information on various policies and roadmaps for each energy sector commitments. It identifies major technical and social challenges associated with the sustainability of these sectors. This review offers insights into how realistically ambitious plans India has for �phasing down� the use of coal by 2050 and being a carbon-neutral economy by 2070. India achieved massive success through solar energy after COP21 and 80% of future investments are for solar energy. Comparatively, there has been the least investment in other REs such as bioenergy, water, and wind. � 2023 Elsevier Ltd
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    Microalgae from wastewaters to wastelands: Leveraging microalgal research conducive to achieve the UN Sustainable Development Goals
    (Elsevier Ltd, 2023) Singh, Kripal; Ansari, Faiz Ahmad; Ingle, Kapilkumar Nivrutti; Gupta, Sanjay Kumar; Ahirwal, Jitendra; Dhyani, Shalini; Singh, Shraddha; Abhilash, P.C.; Rawat, Ismael; Byun, Chaeho; Bux, Faizal
    The scientific evidence on applications of microalgae in bioremediation of wastewaters, increasing agricultural productivity, and biomass production strengthens their potential in supporting global socio-economic and environmental sustainability. Microalgae can consume organic compounds and pollutants present in domestic, agricultural, and industrial wastewater. This leads to biomass production in wastewater and water being relatively safe to be disposed of into water bodies and safeguard life in water. The extensive diversity of microalgae, encompassing a distinct array of physiological, reproductive, and functional traits, along with their remarkable efficiency in wastewater treatment, positions this group of organisms as exceptionally superior to other organisms. Molecular and biotechnological approaches have provided promising tools for improving the biomass production of microalgae from wastewater. Recent technological innovations have facilitated harvesting algal biomass from wastewater treatment plants for developing a range of bioproducts like bioenergy, biofertilizer and other various high value biochemicals. Microalgal communities and their biomass produced from wastewater are investigated for the restoration of degraded lands. The potential use of diverse microalgal species and their biomass from wastewater for restoration of degraded lands such as salt-affected lands, drought ridden arid areas, fly ash contaminated lands, and metal-polluted mine spoils is discussed. Moreover, this review elaborates on how use of microalgae from wastewater to wastelands can contribute to various sustainable development goals (SDGs). It is found that extending microalgae research and use from wastewater to wastelands can support achieving all SDGs by directly contributing to 10 goals. � 2023