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176 results on '"Mathur, Ritu"'

10. Energy system transitions and low-carbon pathways in Australia, Brazil, Canada, China, EU-28, India, Indonesia, Japan, Republic of Korea, Russia and the United States

Author

Fragkos, Panagiotis, Laura van Soest, Heleen, Schaeffer, Roberto, Reedman, Luke, Köberle, Alexandre C., Macaluso, Nick, Evangelopoulou, Stavroula, De Vita, Alessia, Sha, Fu, Qimin, Chai, Kejun, Jiang, Mathur, Ritu, Shekhar, Swapnil, Dewi, Retno Gumilang, Diego, Silva Herran, Oshiro, Ken, Fujimori, Shinichiro, Park, Chan, Safonov, George, and Iyer, Gokul

Published
2021
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17. Looking under the hood: A comparison of techno-economic assumptions across national and global integrated assessment models

Author

Krey, Volker, Guo, Fei, Kolp, Peter, Zhou, Wenji, Schaeffer, Roberto, Awasthy, Aayushi, Bertram, Christoph, de Boer, Harmen-Sytze, Fragkos, Panagiotis, Fujimori, Shinichiro, He, Chenmin, Iyer, Gokul, Keramidas, Kimon, Köberle, Alexandre C., Oshiro, Ken, Reis, Lara Aleluia, Shoai-Tehrani, Bianka, Vishwanathan, Saritha, Capros, Pantelis, Drouet, Laurent, Edmonds, James E., Garg, Amit, Gernaat, David E.H.J., Jiang, Kejun, Kannavou, Maria, Kitous, Alban, Kriegler, Elmar, Luderer, Gunnar, Mathur, Ritu, Muratori, Matteo, Sano, Fuminori, and van Vuuren, Detlef P.

Published
2019
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23. Taking stock of national climate policies to evaluate implementation of the Paris Agreement

Author

Roelfsema, Mark, van Soest, Heleen L., Harmsen, Mathijs, van Vuuren, Detlef P., Bertram, Christoph, den Elzen, Michel, Höhne, Niklas, Iacobuta, Gabriela, Krey, Volker, Kriegler, Elmar, Luderer, Gunnar, Riahi, Keywan, Ueckerdt, Falko, Després, Jacques, Drouet, Laurent, Emmerling, Johannes, Frank, Stefan, Fricko, Oliver, Gidden, Matthew, Humpenöder, Florian, Huppmann, Daniel, Fujimori, Shinichiro, Fragkiadakis, Kostas, Gi, Keii, Keramidas, Kimon, Köberle, Alexandre C., Aleluia Reis, Lara, Rochedo, Pedro, Schaeffer, Roberto, Oshiro, Ken, Vrontisi, Zoi, Chen, Wenying, Iyer, Gokul C., Edmonds, Jae, Kannavou, Maria, Jiang, Kejun, Mathur, Ritu, Safonov, George, and Vishwanathan, Saritha Sudharmma

Published
2020
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30. Win-win transportation strategies for India: Linking air pollution and climate mitigation

Author

Dharmala, Nikhilesh, primary, Kholod, Nazar, additional, Chaturvedi, Vaibhav, additional, Ghosh, Probal Pratap, additional, Mathur, Ritu, additional, Bali, Shikha, additional, Behera, Anshuman, additional, Chamola, Sakshi, additional, Clarke, Leon, additional, Evans, Meredydd, additional, Horowitz, Russell, additional, Jain, Aakansha, additional, Koti, Poonam Nagar, additional, Paladugula, Anantha Lakshmi, additional, Qamar, Sharif, additional, Shekhar, Swapnil, additional, and Srinivasan, Shweta, additional

Published
2022
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35. Distribution and Growth of Ground Vegetation in Relation to Environmental Factors in the Bala-fort Reserve Forest Alwar, Rajasthan.

Author

MISHRA, VIVEK, YADAV, ATAR SINGH, and MATHUR, RITU

Abstract

The Bala-fort forest is located in the Sariska Tiger reserve in Alwar, Rajasthan (27o4' to 28o4' N and 76o7' to 77o13' E). It is a tropical dry deciduous forest with dense ground vegetation. The influence of spatial heterogeneity and soil nutrients was evaluated on the distribution and growth of selected common herb and shrubs on the west facing hill slope in this forest. The density of herb Achyranthes aspera was highest among the four selected species (3320 stems 100m-2) in the valley and lowest (1970 stems100m-2) in the middle part of the slope. Among the shrubs Justicia adhatoda exhibited highest density (42 stems 100m-2) in the valley, Grewia flavescens 34 stems 100m-2 at the base and Capparis sepiaria 17 stems 100m-2 in the valley. According to frequency, Capparis sepiaria exhibited clumped dispersion whereas the other three selected species showed uniform dispersion on the west facing hill slope in this forest. Achyranthes aspera exhibited lowest biomass (0.17 kg 100m-2) whereas Justicia adhatoda, Grewia flavescens and Capparis sepiaria showed 6.4, 6.6 and 2.5 kg 100m-2 total biomass respectively, in the study site. The growth of Achyranthes aspera and Justicia adhatoda in different micro-environments did not respond to four selected elements (Sodium, Potassium, Calcium and Phosphorus) whereas Grewia flavescens exhibited higher growth at low percentage of four elements. Capparis sepiaria showed higher growth at higher percentage than at lower percentage of selected elements. The results obtained indicate that distribution and growth of selected plant species was regulated by the elevation of slope, density of tree species and soil nutrients in this forest. [ABSTRACT FROM AUTHOR]

Published
2023

44. CONTRIBUTION OF GROUND VEGETATION IN THE LITTERFALL OF THE BALA FORT RESERVE FOREST IN ALWAR, RAJASTHAN.

Author

MISHRA, VIVEK, YADAV, ATAR SINGH, and MATHUR, RITU

Abstract

The Bala-fort tropical dry deciduous forest in the Aravalli ranges is located in Alwar district of Rajasthan (27°4' to 28°4' N and 76°7' to 77°13' E). It supports a dense layer of herbs and shrubs because of its open forest canopy. Hence, the role of dominant herb and shrubs in the litter dynamics has been evaluated in this forest. The total annual litter of the forest floor was 328 g m-2 out of which more than 32 % was contributed by the selected shrubs of the ground vegetation. The shrub Grewia flavescens contributed from September to March, Capparis sepiaria from March to June whereas Justicia adhatoda throughout the year. It seems from the study that Justicia adhatoda plays greater role whereas the common herb Achyranthes aspera played the lowest role in the litter dynamics of this forest. [ABSTRACT FROM AUTHOR]

Published
2023

47. Reducing stranded assets through early action in the Indian power sector

Author

Malik, Aman, Bertram, Christoph, Despres, Jacques, Emmerling, Johannes, Fujimori, Shinichiro, Garg, Amit, Kriegler, Elmar, Luderer, Gunnar, Mathur, Ritu, Roelfsema, Mark, Shekhar, Swapnil, Vishwanathan, Saritha, and Vrontisi, Zoi

Subjects
Coal, Nationally determined contribution (ndc), Climate policy, Power, India, Stranded assets, Carbon lock-in
Abstract

Cost-effective achievement of the Paris Agreement's long-term goals requires the unanimous phase-out of coal power generation by mid-century. However, continued investments in coal power plants will make this transition difficult. India is one of the major countries with significant under construction and planned increase in coal power capacity. To ascertain the likelihood and consequences of the continued expansion of coal power for India's future mitigation options, we use harmonised scenario results from national and global models along with projections from various government reports. Both these approaches estimate that coal capacity is expected to increase until 2030, along with rapid developments in wind and solar power. However, coal capacity stranding of the order of 133–237 GW needs to occur after 2030 if India were to pursue an ambitious climate policy in line with a well-below 2 °C target. Earlier policy strengthening starting after 2020 can reduce stranded assets (14–159 GW) but brings with it political economy and renewable expansion challenges. We conclude that a policy limiting coal plants to those under construction combined with higher solar targets could be politically feasible, prevent significant stranded capacity, and allow higher mitigation ambition in the future.

Published
2020

48. Taking stock of national climate policies: future impact of climate policies in the context of the Paris Agreement climate goals

Author

Roelfsema, Mark, van Soest, Heleen L., Harmsen, Mathijs, van Vuuren, Detlef P., Bertram, Christoph, den Elzen, Michel, Höhne, Niklas, Iacobuta, Gabriela, Krey, Volker, Kriegler, Elmar, Luderer, Gunnar, Riahi, Keywan, Ueckerdt, Falko, Despres, Jacques, Drouet, Laurent, Emmerling, Johannes, Frank, Stefan, Fricko, Oliver, Gidden, Matthew, Humpenöder, Florian, Huppmann, Daniel, Fujimori, Shinichiro, Fragkiadakis, Kostas, Gi, Keii, Keramidas, Kimon, Köberle, Alexandre C., Reis, Lara Aleluia, Rochedo, Pedro Schaeffer, Roberto, Oshiro, Ken, Vrontisi, Zoi, Chen, Wenying, Iyer, Gokul C., Edmonds, James Jae, Kannavou, Maria, Jiang, Kejun, Mathur, Ritu, Safonov, George Georgy, Vishwanathan, Saritha Sudharmma, and Environmental Sciences

Abstract

Many countries have implemented national climate policies to accomplish pledged Nationally Determined Contributions and to contribute to the temperature objectives of the Paris Agreement on climate change. In 2023, the global stocktake will assess the combined effort of countries. Here, based on a public policy database and a multi-model scenario analysis, we show that implementation of current policies leaves a median emission gap of 22.4 to 28.2 GtCO2eq by 2030 with the optimal pathways to implement the well below 2 °C and 1.5 °C Paris goals. If Nationally Determined Contributions would be fully implemented, this gap would be reduced by a third. Interestingly, the countries evaluated were found to not achieve their pledged contributions with implemented policies (implementation gap), or to have an ambition gap with optimal pathways towards well below 2 °C. This shows that all countries would need to accelerate the implementation of policies for renewable technologies, while efficiency improvements are especially important in emerging countries and fossil-fuel-dependent countries.

Published
2020

50. Taking stock of national climate policies to evaluate implementation of the Paris Agreement

Author

Environmental Sciences, Energy, Resources & Technological Change, Roelfsema, Mark, van Soest, Heleen L., Harmsen, Mathijs, van Vuuren, Detlef P., Bertram, Christoph, den Elzen, Michel, Höhne, Niklas, Iacobuta, Gabriela, Krey, Volker, Kriegler, Elmar, Luderer, Gunnar, Riahi, Keywan, Ueckerdt, Falko, Després, Jacques, Drouet, Laurent, Emmerling, Johannes, Frank, Stefan, Fricko, Oliver, Gidden, Matthew, Humpenöder, Florian, Huppmann, Daniel, Fujimori, Shinichiro, Fragkiadakis, Kostas, Gi, Keii, Keramidas, Kimon, Köberle, Alexandre C., Aleluia Reis, Lara, Rochedo, Pedro, Schaeffer, Roberto, Oshiro, Ken, Vrontisi, Zoi, Chen, Wenying, Iyer, Gokul C., Edmonds, Jae, Kannavou, Maria, Jiang, Kejun, Mathur, Ritu, Safonov, George, Vishwanathan, Saritha Sudharmma, Environmental Sciences, Energy, Resources & Technological Change, Roelfsema, Mark, van Soest, Heleen L., Harmsen, Mathijs, van Vuuren, Detlef P., Bertram, Christoph, den Elzen, Michel, Höhne, Niklas, Iacobuta, Gabriela, Krey, Volker, Kriegler, Elmar, Luderer, Gunnar, Riahi, Keywan, Ueckerdt, Falko, Després, Jacques, Drouet, Laurent, Emmerling, Johannes, Frank, Stefan, Fricko, Oliver, Gidden, Matthew, Humpenöder, Florian, Huppmann, Daniel, Fujimori, Shinichiro, Fragkiadakis, Kostas, Gi, Keii, Keramidas, Kimon, Köberle, Alexandre C., Aleluia Reis, Lara, Rochedo, Pedro, Schaeffer, Roberto, Oshiro, Ken, Vrontisi, Zoi, Chen, Wenying, Iyer, Gokul C., Edmonds, Jae, Kannavou, Maria, Jiang, Kejun, Mathur, Ritu, Safonov, George, and Vishwanathan, Saritha Sudharmma

Published
2020

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