Introduction
Scientific evidence of climate change began to emerge in the middle of the 20th century, when scientists like David Keeling collected data that led to the creation of the Keeling Curve, demonstrating the impact of greenhouse gases on increasing global temperatures. By the 1970s, everyday citizens could observe the adverse effects of industrialization, mass production, and unchecked development, evident in widespread smog in cities, oil spills, fires on rivers, air pollution, and growing mountains of waste. By the beginning of the 1970s, young activists, senators, ministers, and concerned citizens began raising their voices about the destruction of the environment and natural resources caused by industrial processes. This collective concern culminated in the first major conference to preserve the human environment, held in 1972 in Stockholm, to address these critical issues.
Today, in 2025, humanity, through international organizations and global communities, has come together at various summits and conferences to identify core problems, plan solutions, set goals, and aim for collective action to address what we now call climate change. Let’s explore a few key milestones to see the progress we’ve made in understanding and tackling this global challenge:
1972 Stockholm Conference – Stockholm, Sweden
In 1972, the world came together for the first time to address a pressing concern that affected everyone — the human environment. Held in Stockholm, Sweden, from June 5 to 16, the United Nations Conference on the Human Environment brought together 113 countries, NGOs, and intergovernmental bodies in a historic gathering. It was a moment of collective realization, as nations explored how to balance economic growth with the urgent need to protect the planet. The meeting opened the global conversation about sustainable development, marking the first time environmental issues were raised on the world stage.
One of the key themes of the conference was balancing economic development with environmental protection. It emphasized the need for developing countries to focus on economic growth to improve living standards, while highlighting the responsibility of developed countries to address environmental challenges and lead the way toward sustainable development. The then Prime Minister of India, Indira Gandhi, succinctly highlighted the crux of the debate in her speech with the question, “Aren’t poverty and need the biggest polluters?”
Read: Key Debates & Discussions At Stockholm Conference
Outcomes of 1972 Conference –
Stockholm Declaration
The Stockholm Declaration, comprising 26 principles, outlined the responsibilities of nations and individuals in safeguarding the environment. It emphasized the sovereign right of states to utilize their natural resources while underscoring the duty to prevent transboundary environmental harm and integrate environmental considerations into development planning.
Action Plan For The Human Environment
The Action Plan for the Human Environment included 109 recommendations in three key areas: global environmental assessment, environmental management, and institutional arrangements to foster international cooperation.
Read Report: Stockholm Declaration & Action Plan
Creation Of The United Nations Environment Programme (UNEP)
The Stockholm Conference resulted in the creation of the UNEP which has since become central to organizing international agreements and promoting sustainable development, spearheading the fight against climate change.
World Environment Day
June 5, the opening day of the conference, was designated as World Environment Day, a global platform to raise awareness and inspire action on environmental issues.
Importantly, the conference also emphasized a focus on developing countries, highlighting the need to address their environmental challenges while balancing economic growth and protection of natural resources.
The Stockholm Conference was groundbreaking as it elevated environmental issues from local concerns to a global priority. It recognized the idea that environmental protection and economic development must go hand in hand, emphasizing their interconnectedness. Widely regarded as the foundation of modern international environmental law and governance, the conference set the stage for future landmark events, including the 1992 Rio Earth Summit and the Paris Agreement of 2015.