This article appeared in Financial Express
Given the powerful sway of faith, it must work together with science and technology to repair humanity’s broken relationship with nature.

Faith must unite with science to heal humanity’s bond with nature.
The Mahakumbh Mela 2025 has left an indelible mark on history. According to official data, more than 650 million people participated in this monumental event — equivalent to the combined population of the US and Indonesia, the third- and fourth-most populous countries in the world. This staggering figure cements the Mahakumbh as the largest human gathering ever recorded. Yet, beyond the numbers lies an experience that cannot be explained through statistics — the palpable energy of faith, the profound sense of unity, and a seemingly primal instinct that drew millions across thousands of kilometres for a fleeting moment of spiritual renewal. To witness the Mahakumbh was to feel humanity at its most elemental.
However, the event was not without its challenges. Many devotees died in a tragic stampede, logistical hurdles tested organisers, and concerns about water quality lingered. Still, the Mahakumbh concluded with remarkable order, safety, and a surprising degree of environmental care.
The grounds were strikingly free of plastic litter, open defecation, or festering garbage piles. Thousands of mobile toilets and three temporary sewage treatment plants were installed to ensure proper sanitation. Additionally, the mela was illuminated with solar power and single-use plastics were banned.
Even more astonishingly, there were no disease outbreaks, which might have been expected at a gathering of such magnitude. Charity and compassion were evident everywhere, with numerous organisations providing shelter and food to countless pilgrims. It is difficult to imagine any other nation managing such a colossal convergence with similar care and generosity. But as the last pilgrims depart, a pressing question looms: Can such a gathering of faith endure in a world increasingly battered by climate change and environmental degradation?
The fact is that the Ganga and Yamuna are already under grave threats. Despite four decades of river-cleaning efforts through the Ganga Action Plan (started in 1986), Yamuna Action Plan (1993) and the Namami Gange Programme (2014), a little more than half of the sewage entering the rivers is treated, while chemical-laden agricultural run-off continues to degrade water quality. On top of this, melting glaciers in the Himalayas, coupled with erratic rainfall — accelerated by global warming — is projected to further reduce both the quality and quantity of water in these rivers and their tributaries. These persistent and emerging environmental concerns raise serious doubts about the continuity of a tradition that has thrived for millennia.
This tension between reverence and sustainability took centre stage at a groundbreaking conclave during the Mahakumbh Mela on February 16. Titled “Faith of Kumbh and Climate Change,” the conclave brought together religious leaders, scientists, policymakers, and civil society to discuss the role of faith in addressing climate and environmental crises. Topics such as environmental management during religious congregations and greener places of worship were also explored.
The initiative, organised by the environment department of the Uttar Pradesh government and iFOREST, sought to merge the sacred with the sustainable, recognising that religious leaders and faith-based organisations — armed with moral authority and vast grassroots networks — could be vital allies in combatting climate change and environmental degradation.
The power of faith
India is a deeply religious country, and faith holds an unparalleled sway over the majority of its people. It has shaped, and continues to shape, values and behaviours in ways that science and government policies have struggled to achieve.
The fact is that the teachings of all major religions provide guidance on environmental preservation. Hinduism and other Indic faiths consider nature divine, making its protection a sacred duty. Abrahamic religions, too, emphasise stewardship over God’s creation. But these teachings are rarely reinterpreted for the present or emphasised in sermons and religious gatherings. While some spiritual leaders have championed environmental causes, sustainability remains a low priority for most faith-based institutions. Imagine, however, if every sermon and religious gathering urged followers to shun plastic, conserve water, plant trees, install renewable energy, and embrace sustainable lifestyles. Such shifts, rooted in religious duty, could ignite a grassroots revolution.
At the conclave, this potential of faith-based organisations in raising environmental awareness, educating communities, and driving meaningful action garnered support from all. The need to integrate science with religious teachings to tackle the environmental crisis was also endorsed. Many religious leaders also emphasised the necessity of making the Mahakumbh more sustainable. As one prominent spiritual leader pointed out: “If we do not care for the environment, the Mahakumbh of the future will take place on the sands of Prayagraj, not in the waters of the Triveni.”
The Mahakumbh Declaration
A key outcome of the conclave was the Mahakumbh Declaration on Climate Change. Under this, the UP government has pledged to “green” religious institutions and congregations across the state. The state envisions temples, mosques, and shrines becoming models of sustainability. The state’s pledge includes funding faith-based organisations to promote environmental and climate education, campaigns, and practices.
It is important to recognise that the environmental crisis, including the climate crisis, is not just a technological or economic challenge but also deeply spiritual. It reflects humanity’s broken relationship with nature, a disconnect that faith, science, and technology must work together to repair. And in this, faith may well be our most powerful ally.
Chandra Bhushan is one of India’s foremost public policy experts and the founder-CEO of International Forum for Environment, Sustainability & Technology (iFOREST).