Which of the following is referred to as 'Magna Carta' of Environment Law ?

The Declaration of the United Nations Conference on the Human Environment, adopted at Stockholm in 1972, is called the Magna Carta of environmental law. It was the first international instrument to recognise the right to a healthy environment and set out 26 principles; India's Article 48A and Article 51A(g) were added in 1976 in its wake.

The Rio Conference (1992), the Johannesburg Summit (2002) and the climate change Convention came later and built on Stockholm.