Abhishek Chaudhary

Abhishek Chaudhary
Indian Institute of Technology Kanpur | IIT Kanpur · Department of Civil Engineering

PhD

About

121
Publications
83,560
Reads
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7,227
Citations
Citations since 2017
77 Research Items
7142 Citations
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Introduction
Abhishek Chaudhary is an Assistant Professor at the Indian Institute of Technology (IIT) Kanpur in the Environmental Engineering and Management division. His areas of research includes sustainable agriculture and diets, biodiversity conservation, life cycle assessment, environmental modeling and sustainable infrastructure. More details can be found on the lab website: https://chaudhary-lab.weebly.com/

Publications

Publications (121)
Article
Full-text available
Food systems are at the heart of at least 12 of the 17 Sustainable Development Goals (SDGs). The wide scope of the SDGs call for holistic approaches that integrate previously "siloed" food sustainability assessments. Here we present a first global-scale analysis quantifying the status of national food system performance of 156 countries, employing...
Article
Full-text available
Recent studies have mapped the global hotspots hosting high phylogenetic diversity (PD), but not the regions where this diversity is under threat due to human land use. This is because, to date, it is not clear how much PD is lost as species of a given taxon go extinct. The aim of this study was to identify the global regions projected to suffer th...
Article
Effective and equitable conservation requires understanding of the global biodiversity impacts inflicted by consumption in individual countries and those embodied in international trade. Research to date has ascertained these impacts in terms of threats, but not on species directly. Here we use a novel approach, by parametrizing the countryside spe...
Article
Model uncertainty estimation and risk assessment is essential to environmental management and informed decision making on pollution mitigation strategies. In this study, we apply a probabilistic methodology, which combines Bayesian Monte Carlo simulation and Maximum Likelihood estimation (BMCML) to calibrate a lake oxygen recovery model. We first d...
Article
Full-text available
A massive amount of building construction is expected in economically developing nations such as India over the next few years. The first step in ensuring that the new construction takes place in a sustainable manner is the knowledge about the building’s impact on multiple environmental domains. Life cycle assessment (LCA) is a promising tool for t...
Article
Global food systems are under increasing stress due to climate change, environmental pollution, biodiversity loss, international conflicts, and pandemics, while billions of people continue to lack access to healthy and nutritious food. A series of expert voices address the transformations needed to ensure healthy, affordable, and sustainable diets...
Article
Full-text available
Primates, represented by 521 species, are distributed across 91 countries primarily in the Neotropic, Afrotropic, and Indo-Malayan realms. Primates inhabit a wide range of habitats and play critical roles in sustaining healthy ecosystems that benefit human and nonhuman communities. Approximately 68% of primate species are threatened with extinction...
Article
Full-text available
Food production for human consumption is a leading cause of environmental damage in the world and yet over two billion people suffer from malnutrition. Several studies have presented evidence that changes in dietary patterns across the world can lead to win-win outcomes for environmental and social sustainability and can complement ongoing technolo...
Article
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The active involvement of subnational authorities, cities and local governments has been identified as one of the enabling conditions to implement the Convention on Biological Diversity’s Post-2020 Global Biodiversity Framework and progress towards the United Nations’ Sustainable Development Goal 15 (Life on Land). However, there has not been any s...
Technical Report
Full-text available
The Food and Agriculture Organization of the United Nations (FAO) initiated a project to identify opportunities for further developing environmental and nutritional LCA methodology and building consensus about best practice, and to propose future research needs. The project involved 30 environmental and nutritional LCA researchers from 18 countries...
Article
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A major challenge for countries around the world is to provide a nutritionally adequate diet to their population with limited available resources. A comprehensive analysis that reflects the adequacy of domestic food production for meeting national nutritional needs in different countries is lacking. Here we combined national crop, livestock, aquacu...
Article
Full-text available
Global land systems are increasingly shaped by international trade of agricultural products. An increasing number of studies have quantified the implications of agricultural trade for single different aspects of land system sustainability. Bringing together studies across different sustainability dimensions, this review investigates how global agri...
Article
In 2019, the EAT-Lancet Commission proposed a planetary health diet (PHD)—optimal for the planet and its people. Yet concerns have arisen regarding its universality and potential tradeoffs and conflicts. This Voice piece asks: is a PHD realistic, where are the remaining knowledge gaps and opportunities, and where do we go from here?
Article
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The Convention on Biological Diversity’s post-2020 Global Biodiversity Framework will probably include a goal to stabilize and restore the status of species. Its delivery would be facilitated by making the actions required to halt and reverse species loss spatially explicit. Here, we develop a species threat abatement and restoration (STAR) metric...
Article
In recent times, there has been an increased international interest in India's food systems. There is a concern that, with rising population and incomes, India's adoption of unsustainable dietary patterns could have disastrous consequences not only for public health but also for the environment, locally and globally. This in turn can seriously thre...
Preprint
Full-text available
Following our failure to fully achieve any of the 20 Aichi biodiversity targets, the future of biodiversity rests in the balance. The Convention on Biological Diversity's Post-2020 Global Biodiversity Framework (GBF) presents us with the opportunity to preserve Nature's Contributions to People (NCPs) for current and future generations through conse...
Article
The agricultural use of reactive N (Nr) is strongly linked to plant growth and hence global food security. However, this disrupts the N cycle and leads to eutrophication of fresh water, global warming, smog, acid rain, ozone depletion, coastal dead zones, and biodiversity loss. Nr is released in each stage of the food lifecycle, including productio...
Article
Vegetated buffers and filter strips are a widely used Best Management Practice (BMP) for enhancing streamside ecosystem quality and water quality improvement through nonpoint source pollutant removal. Most existing studies are either site-specific, rely on limited data points, or evaluate buffer width and slope as the only design variables for pred...
Article
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Increased efforts are required to prevent further losses to terrestrial biodiversity and the ecosystem services that it provides1,2. Ambitious targets have been proposed, such as reversing the declining trends in biodiversity³; however, just feeding the growing human population will make this a challenge⁴. Here we use an ensemble of land-use and bi...
Article
Full-text available
Currently, ~65% of extant primate species ( ca 512 species) distributed in 91 countries in the Neotropics, mainland Africa, Madagascar, South Asia and Southeast Asia are threatened with extinction and 75% have declining populations as a result of deforestation and habitat loss resulting from increasing global market demands, and land conversion for...
Article
Full-text available
Numerous studies have shown that replacing a portion of beef with plant-based foods in daily diets of high-income nations can improve health, nutrition, and environmental consequences globally. Pulses are one of the major plant-based protein foods shown to have both environmental and nutritional benefits. For consumers to adopt more plant-based foo...
Article
Full-text available
Agri-food production systems are major drivers of global sustainability challenges including climate change, freshwater scarcity, micronutrient deficiencies, and cardiovascular disease. There is an urgent need for more robust methods (e.g., life cycle assessment, system-based modelling) and metrics (e.g., Disability-Adjusted Life Years, nutrient di...
Article
Full-text available
Life cycle impact assessment (LCIA) is a lively field of research, and data and models are continuously improved in terms of impact pathways covered, reliability, and spatial detail. However, many of these advancements are scattered throughout the scientific literature, making it difficult for practitioners to apply the new models. Here, we present...
Article
Full-text available
Reducing food waste can contribute positively towards multiple sustainable development goals (SDGs) but the differences in the food waste across countries in terms of embedded nutrients and environmental impacts is not well-known. Here we assess the value of daily per capita food waste of 151 countries using two recent indicators for embedded nutri...
Technical Report
Full-text available
Numerous studies have shown that replacing a portion of meat (beef especially) with plant-based foods in daily diets can improve health, nutrition and environmental impacts (Willett et al. 2019; Chaudhary & Krishna, 2019; Clune et al. 2018). Beef-based burger patties can be made more sustainable, nutritious and cost-effective, while maintaining pal...
Preprint
Full-text available
Overwhelming evidence shows that overconsumption of meat is bad for human and environmental health and that moving towards a more plant-based diet is more sustainable. For instance, replacing beef with beans in the US could free up 42% of US cropland and reduce greenhouse gas emissions by 334 mmt, accomplishing 75% of the 2020 carbon reduction targ...
Article
Full-text available
Overwhelming evidence shows that overconsumption of meat is bad for human and environmental health and that moving towards a more plant-based diet is more sustainable. For instance, replacing beef with beans in the US could free up 42% of US cropland and reduce greenhouse gas emissions by 334 mmt, accomplishing 75% of the 2020 carbon reduction targ...
Article
Full-text available
The scientific consensus states CO2 emissions must be limited to 420 billion tonnes and approximately 720 billion tonnes of CO2 must be removed from the atmosphere to limit global warming to 1·5°C with 66% probability. Restoring natural vegetation, such as forest, is currently the best option at scale for removing CO2 from the atmosphere, and must...
Article
Full-text available
Background Transitioning from current to sustainable diets that have low environmental impacts and high nutrition and are culturally acceptable can contribute greatly towards the achievement of several national Sustainable Development Goals (SDGs). With a population of 1·3 billion, widely prevalent malnutrition and increasing incomes, India's per c...
Data
Table S9 - Percent of total number of primate species threatened with extinction due to 10 human land use types under current and six future scenarios for 2050 and 2100
Data
Table S8 - Percent of primate species threatened with extinction currently (2016) and under six future scenarios for 2050 and 2100
Article
Full-text available
As a consequence of recent human activities. populations of approximately 75% of the world's primates are in decline, and more than 60% of species (n = 512) are threatened with extinction. Major anthropogenic pressures on primate persistence include the widespread loss and degradation of natural habitats caused by the expansion of industrial agricu...
Article
Full-text available
Current diets of most nations either do not meet the nutrition recommendations or transgress environmental planetary boundaries or both. Transitioning towards sustainable diets that are nutritionally adequate and low in environmental impact is key in achieving the United Nations’ Sustainable Development Goals. However designing region-specific sust...
Article
Full-text available
Demand side interventions, such as dietary change, can significantly contribute towards the achievement of 2030 national sustainable development goals. However, most previous studies analysing the consequences of dietary change focus on a single dimension of sustainability (e.g., environment) using a limited number of indicators and dietary scenari...
Article
Full-text available
Efficient forward-looking mitigation measures are needed to halt the global biodiversity decline. These require spatially explicit scenarios of expected changes in multiple indicators of biodiversity under future socio-economic and environmental conditions. Here, we link six future (2050 and 2100) global gridded maps (0.25° × 0.25° resolution) avai...
Preprint
Full-text available
Efficient forward-looking mitigation measures are needed to halt the global biodiversity decline. These require spatially explicit scenarios of expected changes in multiple indicators of biodiversity under future socio-economic and environmental conditions. Here we link five future (2050 and 2100) global gridded maps (0.25° × 0.25° resolution) avai...
Conference Paper
Full-text available
The limited success of traditional conservation practices such as expanding protected areas signals a need for new, integrated approaches to halt biodiversity declines. In particular, biodiversity-benign production methods can be complemented by changing human or national consumption patterns such that the global demand for products most damaging t...
Preprint
Full-text available
Unless actions are taken to reduce multiple anthropogenic pressures, biodiversity is expected to continue declining at an alarming rate. Models and scenarios can be used to help design the pathways that sustain a thriving nature and its ability to contribute to people. This approach has so far been hampered by the complexity associated with combini...
Data
This file contains: Table S1: Land use classification - description of 16 land use classes used in this study. Table S2: Overview of ecoregions, habitat types, species richness and vulnerability scores of each taxa per ecoregion. Table S3: Global land occupation characterization factors (mean and 95% confidence interval values) per ecoregion...
Article
Full-text available
Incorporating low cost pulses, such as yellow peas, that are rich in nutrients and low in fertilizer requirements, into daily food items, can improve the nutritional and sustainability profile of national diets. This paper systematically characterized the effect of using Canadian grown whole yellow pea and refined wheat flours on nutritional densit...
Article
Full-text available
The UNEP-SETAC life cycle initiative recently recommended use of the countryside species-area relationship (SAR) model to calculate the characterization factors (CFs; potential species loss per m2) for projecting the biodiversity impact of land use associated with a products’ life cycle. However, CFs based on this approach are to date available for...
Article
The extinction of species at the present leads to the loss of 'phylogenetic diversity' (PD) from the evolutionary tree in which these species lie. Prior to extinction, the total PD present can be divided up among the species in various ways using measures of evolutionary isolation (such as 'fair proportion' and 'equal splits'). However, the loss of...
Preprint
Full-text available
The extinction of species at the present leads to the loss of ‘phylogenetic diversity’ (PD) from the evolutionary tree in which these species lie. Prior to extinction, the total PD present can be divided up among the species in various ways using measures of evolutionary isolation (such as ‘fair proportion’ and ‘equal splits’). However, the loss of...
Data
This supplementary file contains: - Details of countryside SAR model parameters used to calculate species extinctions per ecoregion (equation 1, main text). Table S1- Biodiversity loss (projected global species extinctions) for each taxa per country due to wood consumption along with impacts exported, imported and occuring domestically for each c...
Article
Identifying the global hotspots of forestry driven species, ecosystem services losses and informing the consuming nations of their environmental footprint domestically and abroad is essential to design demand side interventions and induce sustainable production methods. Here we first use countryside species area relationship model to project specie...
Conference Paper
Full-text available
The life cycle impact assessment guidance flagship project of the UNEP-SETAC Life Cycle Initiative aims at providing global guidance and building scientific consensus on indicators for assessing land use impacts on biodiversity. This paper summarizes the activities and highlights the main conclusions of the project. During the last two years the In...
Research
Full-text available
The rise in intensive agriculture, and associated land-use change, is a major driver of biodiversity loss. This study evaluated these effects via international food trade, calculating estimates of species loss for 170 crops and 184 countries. The results show that the majority of biodiversity loss is due to growing crops for domestic consumption bu...
Chapter
Full-text available
Within the framework of LC-Impact methodology, this method is based on the UNEP-SETAC guideline on global land use impact assessment on biodiversity in LCA. The excel files and shape files containing the CFs can be downloaded from http://www.lc-impact.eu/ecosystem-quality-land-stress.The approach proposed by Chaudhary et al. 2015 using countryside...
Data
This file contains: Details of countryside SAR model parameters used to calculate species extinctions per ecoregion (equation 1, main text). Table S1 - Biodiversity impacts per unit mass for each combination of crop & country (regional species lost per ton). Table S2- Total biodiversity loss (regional species lost) per country due to different c...
Article
Full-text available
Forests managed for timber have an important role to play in conserving global biodiversity. We evaluated the most common timber production systems worldwide in terms of their impact on local species richness by conducting a categorical meta-analysis. We reviewed 287 published studies containing 1008 comparisons of species richness in managed and u...