The 1992 Earth Summit at Rio de Janeiro, Brazil

Shri Nathji had written an article on the preservation of the environment, along with a historic prayer for the environment. This was meant to be read at the Earth Summit at Rio de Janeiro, Brazil in June 1992. Shri D.N. Sinha, the old devotee of Shri Nathji had gone to the Summit Meeting where 170 Heads of State of the world were  present.

HH Priya Nath typed out the Prayer and Article on the Environment, and send a hundred brochures for the World Prayer Day along with the World Prayer for Peace  with Shri D.N. Sinha to the Earth Summit. HH Priya also send some photographs of Shri Nathji in his grey achkan, glittering pink turban, and translucent brown Sun glasses. The picture carries a Divine Glow that all at once grips the heart of the viewer, revealing God in human form.

Both, the Article, and the Prayer, were taken in June 1992 by Shri D.N. Sinha to the Earth Summit at Brazil, where they were read out in the midst of the important personages of the world. It is a measure of Shri Nathji’s greatness that His Prayer on the Environment is respectfully recited at the Summit by the gathering there, which stands up in homage to Shri Nathji.

The World Prayer for the Environment was also later sent to the 170 Heads of State along with the World Prayer Day Brochures for June 23, 1992.

The United Nations Conference on Environment and Development (UNCED), also known as the Rio Summit, Rio Conference, and Earth Summit (Portuguese: ECO-92 was a major United Nations conference held in Rio de Janeiro from 3 June to 14 June 1992. The focus of this conference was the state of the global environment and the relationship between economics, science and the environment in a political context. The conference concluded with the Earth Summit

This was the first global unified effort aimed at preserving the environment.

172 governments participated, with 108 sending their heads of state or government.  Some 2,400 representatives of non-governmental organizations (NGOs) attended, with 17,000 people at the parallel NGO "Global Forum", who had Consultative Status.

Some of the issues addressed included:

- Systematic scrutiny of patterns of production — particularly the production of toxic components, such as lead in gasoline, or poisonous waste including radioactive chemicals etc.

 - Alternative sources of energy to replace the use of fossil fuels which are linked to global climate change.

 -  New reliance on public transportation systems in order to reduce vehicle emissions, congestion in cities and the health problems caused by polluted air and smoke.

 -  The growing scarcity of water.

An important achievement was an agreement on the Climate Change Convention which in turn led to the Kyoto Protocol. Another agreement was to "not carry out any activities on the lands of indigenous peoples that would cause environmental degradation or that would be culturally inappropriate".

The Convention on Biological Diversity was opened for signature at the Earth Summit, and made a start towards redefinition of measures that did not inherently encourage destruction of natural ecoregions and so-called uneconomic growth.

Twelve cities were also honored by the Local Government Honours Award for innovative local environmental programs. These included Sudbury in Canada for its ambitious program to rehabilitate environmental damage from the local mining industry, Austin in the United States for its green building strategy, and Kitakyūshū in Japan for incorporating an international education and training component into its municipal pollution control program.

The Earth Summit resulted in the documentations of the Rio Declaration on Environment and Development and one on Forest Principles.

Moreover, two important legally binding agreements were opened for signature:

Convention on Biological Diversity

Framework Convention on Climate Change (UNFCCC).

Another achievement was that Green Cross International was founded to build upon the work of the Summit.

After Rio Summit, governments across the world got more environment conscious and were held accountable for environmental damages at international forums.

In 2012, the United Nations Conference on Sustainable Development was also held in Rio, and is also commonly called Rio+20 or Rio Earth Summit 2012. It was held June 20-22nd. This was the follow up of the 1992 Rio Earth Summit.