Ecological Footprint of Popular Temples in West Bengal, India: An Integrated GIS-Based Assessment and Contingent Valuation Analysis

Every year, millions of people travel to the temples of West Bengal, India, drawn by faith and tradition to sites like the Dakshineswar Kali Temple and the sprawling ISKCON complex in Mayapur. These journeys are more than just spiritual acts; they are massive movements of people that leave a physical mark on the land. When so many visitors arrive, they bring with them the needs of daily life: they drink water, eat food, generate trash, and travel in vehicles that burn fuel. This creates a pressure on the local environment, from the riverside ghats to the narrow city streets. Scientists who study how human activity interacts with nature call this the "ecological footprint." It is a way of measuring how much of the Earth's resources a group of people uses and how much waste they produce, translating those impacts into a tangible sense of space and consumption. Understanding this footprint is crucial because if the demand for resources and the generation of waste exceed what the local environment can handle, the result is pollution, clogged drains, and degraded air and water quality. The question facing these sacred sites is not just how to welcome the faithful, but how to do so without overwhelming the very landscapes that make the pilgrimage meaningful.

A researcher named Shatrajit Goswami set out to measure this exact pressure across five of the most popular temple destinations in the state. Instead of looking at just one aspect, such as trash or traffic, they built a complete picture by combining three different tools. First, they used satellite images to map the land around the temples, looking for signs of overcrowding, changes in vegetation, and where waste tends to pile up. Second, they went into the field to count and weigh the actual resources used and the waste produced, tracking everything from the water consumed by hotels to the carbon emissions from the buses and cars bringing visitors. Third, they asked the visitors themselves a direct question: would you be willing to pay a small fee to help clean up and protect these sites? By weaving together maps, physical measurements, and human opinions, the study created a detailed report card for each location, revealing not just where the problems are, but also how much the people visiting these places care about fixing them.

The researchers found that the environmental impact varies wildly depending on where the temple is located and how long people stay. In the dense city centers of Kolkata, such as the Kalighat and Dakshineswar temples, visitors usually arrive for a few hours and leave. Because they do not stay overnight, the main issues here are the sheer number of people walking the streets and the waste they generate in a short time. The study showed that these urban sites produce less water waste per person but suffer from intense pressure on local drainage systems and high volumes of plastic packaging. In contrast, the rural and semi-urban sites like Tarapith and ISKCON Mayapur attract visitors who stay for days. These overnight travelers use significantly more water—up to 85 liters per person per day compared to roughly 14 liters in the city—because they are staying in hotels and using residential facilities. The waste streams here are also different, with a high proportion of organic material like flower offerings and food waste, though the study noted that the highest share of organic waste (71%) actually occurred at Tarakeswar during the peak Shraban month, while plastic remains a persistent problem across all sites.

Transportation emerged as a major source of pollution, particularly for the sites located far from the city. The study calculated that visitors traveling to the more distant temples, such as Mayapur, generated far more carbon emissions per person than those visiting the nearby urban temples. This is simply a matter of distance; the further people travel, the more fuel their vehicles consume. The researchers mapped these travel patterns and found that during peak festival times, the roads and railways leading to these temples become bottlenecks, creating localized zones of high pollution and congestion. On the ground, the physical evidence of this strain is visible. In the city, waste accumulates in narrow alleys and blocks drainage canals. In the rural areas, the rapid construction of hotels and guest houses to accommodate the crowds is replacing natural vegetation and agricultural land, putting pressure on local water tables and increasing the risk of flooding.

Despite these heavy environmental costs, the study uncovered a powerful and encouraging insight: the visitors themselves are willing to help. Using a method that asks people to imagine a scenario where they pay for a specific environmental service, the researchers found that a significant majority of visitors said they would contribute money to support conservation efforts. On average, a visitor was willing to pay about 42.50 Indian Rupees per visit. However, this amount varied significantly by location: visitors at the distant, overnight destination of ISKCON Mayapur showed the highest willingness to pay (INR 65.00), while those at the distant Tarakeswar temple showed the lowest (INR 25.00). The willingness to pay was driven by several factors: people with higher incomes were more likely to contribute, as were those who had a stronger awareness of environmental issues or who felt that the site was already suffering from degradation. This suggests that the people coming to these temples are not just passive observers; they recognize the strain their presence places on the environment and are ready to financially support solutions if they trust that the money will be used correctly.

The study does not just identify problems; it offers a clear path forward based on what it found. Because organic waste like flowers and food makes up the largest portion of the trash at these sites, the researchers suggest setting up local composting systems right at the temples. This would turn waste into useful fertilizer or fuel rather than letting it rot in the streets or pollute the rivers. For the heavy traffic and emissions, the plan involves creating dedicated zones where only electric shuttles or pedestrians are allowed near the temple gates, reducing the number of private cars idling nearby. The study also recommends that the large hotels in the overnight hubs install systems to recycle their used water for cleaning and gardening, cutting down on the demand for fresh water. Perhaps most importantly, the researchers propose that the temple authorities establish a transparent fund where the voluntary contributions from visitors are collected and managed. If visitors see that their money is directly funding cleaner streets, better waste management, and river restoration, the study suggests that this trust will encourage even more people to participate, creating a cycle of sustainable support.

Ultimately, this research demonstrates that managing the environmental impact of religious tourism is possible when data and community will are combined. The scientists showed that while the current influx of visitors creates real stress on water, land, and air, the solution does not require turning away the faithful. Instead, by understanding exactly where the pressure points are and by tapping into the visitors' own desire to protect these sacred spaces, the temples can move toward a model of sustainability. The findings confirm that with the right infrastructure—such as better waste processing and cleaner transport—and a system of transparent funding, these ancient sites can continue to serve as centers of spiritual life without sacrificing the health of the land that surrounds them.