The United Nations Conference on Environment and Development (UNCED), also known as the Rio de Janeiro Conference or the Earth Summit (Portuguese: ECO92, Cúpula da Terra), was a major United Nations conference held in Rio de Janeiro from 3 to 14 June 1992.
The Rio conference was attended by 108 heads of state and government, and helped establish and disseminate the concept of sustainable development.
The United Nations Conference on Sustainable Development (UNCSD), also known as Rio 2012, Rio+20 (Portuguese pronunciation: [ˈʁi.u ˈmajʒ ˈvĩtʃi]), or Earth Summit 2012 was the third international conference on sustainable development aimed at reconciling the economic and environmental goals of the global community. Hosted by Brazil in Rio de Janeiro from 13 to 22 June 2012, Rio+20 was a 20-year follow-up to the 1992 United Nations Conference on Environment and Development (UNCED) held in the same city, and the 10th anniversary of the 2002 World Summit on Sustainable Development (WSSD) in Johannesburg.
The ten-day mega-summit, which culminated in a three-day high-level UN conference, was organized by the United Nations Department of Economic and Social Affairs and included participation from 192 UN member states – including 57 head of state and 31 head of government, private sector companies, NGOs and other groups. The decision to hold the conference was made by UN General Assembly Resolution A/RES/64/236 on 24 December 2009. It was intended to be a high-level conference, including heads of state and government or other representatives and resulting in a focused political document designed to shape global environmental policy.
The World Summit on Sustainable Development 2002, took place in South Africa, from 26 August to 4 September 2002. It was convened to discuss sustainable development organizations, 10 years after the first Earth Summit in Rio de Janeiro. (It was therefore also informally nicknamed "Rio 10.")
The Convention on Biological Diversity (CBD), known informally as the Biodiversity Convention, is a multilateral treaty. The Convention has three main goals: the conservation of biological diversity (or biodiversity); the sustainable use of its components; and the fair and equitable sharing of benefits arising from genetic resources. Its objective is to develop national strategies for the conservation and sustainable use of biological diversity, and it is often seen as the key document regarding sustainable development.
The Convention was opened for signature at the Earth Summit in Rio de Janeiro on 5 June 1992 and entered into force on 29 December 1993. The United States is the only UN member state which has not ratified the Convention. It has two supplementary agreements, the Cartagena Protocol and Nagoya Protocol.
The United Nations Framework Convention on Climate Change (UNFCCC) is the UN process for negotiating an agreement to limit dangerous climate change. It is an international treaty among countries to combat "dangerous human interference with the climate system". The main way to do this is limiting the increase in greenhouse gases in the atmosphere. It was signed in 1992 by 154 states at the United Nations Conference on Environment and Development (UNCED), informally known as the Earth Summit, held in Rio de Janeiro. The treaty entered into force on 21 March 1994. "UNFCCC" is also the name of the Secretariat charged with supporting the operation of the convention, with offices on the UN Campus in Bonn, Germany.
The convention's main objective is explained in Article 2. It is the "stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic [i.e., human-caused] interference with the climate system". The treaty calls for continuing scientific research into the climate. This research supports meetings and negotiations to lead to agreements. The aim is to allow ecosystems to adapt to climate change. At the same time it aims to ensure there are no threats to food production from climate change or measures to address it. And it aims to enable economic development to proceed in a sustainable manner. The UNFCCC's work currently focuses on implementing the Paris Agreement. This agreement entered into force in 2016. It aims to limit the rise in global temperature to well below 2 °C (3.6 °F) above levels before the Industrial Revolution, and even aiming to hold it at 1.5 °C (2.7 °F). The Paris Agreement superseded the UNFCCC's Kyoto Protocol which had been signed in 1997 and ran from 2005 to 2020.
The 2023 United Nations Climate Change Conference or Conference of the Parties of the UNFCCC, more commonly known as COP28, was the 28th United Nations Climate Change conference, held from 30 November to 13 December at Expo City, Dubai, United Arab Emirates. The COP conference has been held annually (except for the year 2020 due to the COVID-19 pandemic) since the first UN climate agreement in 1992. The event is intended for governments to agree on policies to limit global temperature rises and adapt to impacts associated with climate change.
The conference was originally scheduled to end on 12 December, but had to be extended following Saudi objections on the final agreement. On 13 December, the conference president, Sultan Al Jaber announced that a final compromise agreement between the countries involved had been reached. The deal commits all signatory countries to move away from carbon energy sources "in a just, orderly and equitable manner" to mitigate the worst effects of climate change, and reach net zero by the year 2050. The global pact, referred to as the UAE Consensus, was the first in the history of COP summits to explicitly mention the need to shift away from every type of fossil fuels, but it still received widespread criticism due to the lack of a clear commitment to either fossil fuel phase-out or phase-down. China and India did not sign the pledge to triple their output of renewable energy and committed to coal power instead.