Valli Moosa is Deputy Chairperson of the Presidential Climate Commission and Chairperson of the Constitution Hill trust. He was born in Johannesburg and is a veteran of the South African freedom struggle. Valli worked closely with Nelson Mandela during the settlement talks, served as negotiator for the ANC, and participated in drafting the South African Constitution. He served in President Mandela's cabinet as Minister of Constitutional Development, and in President Mbeki's government as Environment Minister. Valli joined the corporate sector in 2004 and currently serves on the board of Sappi Ltd. He has previously served on the boards of Anglo Platinum, Eskom and Sanlam. Valli served as a facilitator in the global climate change negotiations for a number of years. He previously served as President of the International Union for the Conservation of Nature (IUCN), as Chairman of the UN Commission on Sustainable Development and as Chairman of WWF(SA).

The United Democratic Front (UDF) was a South African popular front that existed from 1983 to 1991. The UDF comprised more than 400 public organizations including trade unions, students' unions, women's and parachurch organizations. The UDF's goal was to establish a "non-racial, united South Africa in which segregation is abolished and in which society is freed from institutional and systematic racism." Its slogan was "UDF Unites, Apartheid Divides." The Front was established in 1983 to oppose the introduction of the Tricameral Parliament by the white-dominated National Party government, and dissolved in 1991 during the early stages of the transition to democracy.