Environmental degradation has profound, interconnected global effects that affect almost every aspect of life on Earth, from human health and economic stability to the very survival of countless species, biodiversity and ecosystems. When considering acute environmental pressures, air and water pollution are particularly important, as they cause millions of premature deaths each year, along with water scarcity, forest degradation, and industrial emissions. This research assesses AI and Big Data applications for environmental monitoring globally and in India, with a focus on air quality management and water quality monitoring. We identified India, which witnessed extreme weather events recorded on over 255 days in late 2024 and 64% of Indian companies actively deploying AI for sustainability, significantly above the global average of 44%. India represents a critical case for evaluating scalable, data-driven environmental solutions.
To start with, an exhaustive bibliometric analysis is being conducted and reported to identify key solutions and strategies for addressing and monitoring environmental degradation on a global scale, enabled by AI and big data adoption. Additionally, have tried to explore these solutions and strategies specifically from the perspective of India. The latest research database, such as Scopus, has been considered. Furthermore, we have examined the main challenges posed by environmental degradation, particularly concerning air and water quality, and how they are being addressed using AI and big data, comparing the global landscape with that of India. The selected keywords comprehensively represent the subject domain, ensuring broad and relevant coverage of the research area. This study systematically analyses publications from the last 25 years, identifying the most significant and highly relevant contributions in the field. Water pollution seems more serious than air pollution, as more papers are reported on it. The top three research contributors are China, the US, and the UK, in that order. Internationally, best practices include satellite-based AI platforms such as Climate TRACE (tracking 660 million polluters) and eDNA-integrated water assessments.
India, however, leads in hyperlocal innovations. The CHETNA project uses convolutional neural networks on Sentinel-2 imagery to map 44,000 brick kilns nationwide, a sector responsible for 15% of PM 2.5 and 6% of CO2 emissions. The UNDP Gurugram project integrates 50 IoT sensors with the VAYU AI platform. For water, an AI-driven DSS for the Ganga River employs LSTM networks to forecast pH, Dissolved Oxygen, and Biochemical Oxygen Demand up to 5 days in advance with 96.86% accuracy, and it incorporates an automated alert mechanism. When comparing Global with Indian challenges, we see that both contexts address data sparsity. Still, India uniquely prioritises low-cost sensor calibration, model interpretability, and resource-optimised alert systems, as demonstrated by the Ganga DSS. Indian research excels in hyperlocal source apportionment. While global water models achieve 94% accuracy, they lack the monsoon-adaptive interpretability and operational early warning infrastructure of India. There are innovative Indian solutions, such as biodegradable, sunlight-activated AI water and an Air quality filter. Two detailed case studies illustrate the implementation of an AI-driven vehicular emission intervention: an AI-Driven DSS platform integrating IoT sensors, satellite data, and hydrodynamic models to provide real-time, actionable insights into the River’s water quality. The analysis validates that these India-derived strategies align with advanced environmental AI practices already implemented in other high-density urban centres such as Hong Kong, where hyperlocal sensing, satellite-terrestrial integration, interpretable water-quality AI, predictive sewer maintenance, IoT-GIS multimodal fusion, and corporate sustainability mandates are well established.