How it all started

In 1979, the inception of today's modern day climate programme began, and the first world climate conference was held in Geneva, Switzerland. This conference was the first to recognize climate change as a serious problem. The mainly scientific gathering explored how climate change might affect human activities in the future. It also endorsed plans to establish a World Climate Programme (WCP) under the joint responsibility of the World Meteorological Organization (WMO), the United Nations Environment Programme (UNEP) and the International Council of Scientific Unions (ICSU). It also led to the creation, by WMO and UNEP, of the Intergovernmental Panel on Climate Change (IPCC) in 1988.

During the late 1980s and early 1990s awareness of the issue of climate change was beginning to develop and a number of intergovernmental conferences took place and, together with increasing scientific evidence, these conferences helped to raise concern about the issue. Gradually the issue of global warming and its potential impact on life on earth began to move up the political agenda.

The Intergovernmental Panel on Climate Change (IPCC) released its first Assessment Report in 1990. Approved after a painstaking peer review process, the Report confirmed the scientific evidence for climate change. This had a powerful effect on both policy makers and the general public at its release and provided the basis for negotiations on the United Nations Framework Convention on Climate Change (UNFCCC), which was adopted at the "Rio Earth Summit" in 1992, and entered into force on March 21, 1994.

The United Nations Framework Convention on Climate Change (UNFCCC) is the foundation of global efforts to combat global warming. The Convention on Climate Change attempts to set an overall framework for intergovernmental efforts to tackle the challenge posed by climate change. It recognizes that the climate system is a shared resource whose stability can be affected by industrial and other emissions of carbon dioxide and other greenhouse gases. The ultimate objective of the treaty is to stabilize greenhouse gas concentrations in the atmosphere at a level that will prevent human interference with the climate system. The Convention enjoys near universal membership, with 192 countries (the parties) having ratified but contains no enforcement mechanisms and in that sense is considered non-legally binding. In reality the fact that it was not binding probably helped its universal membership.

Since the UNFCCC entered into force, the parties have been meeting annually in the Conference of the Parties (COP) to assess progress in dealing with climate change, and beginning in the mid-1990s to negotiate the Kyoto Protocol. The Kyoto Protocol, which was adopted in 1997 and entered into force in 2005, has 184 Parties of the Convention having ratified its Protocol. The major feature of this Protocol is that it sets binding targets for 37 industrialized countries and the European Community to reducing their emissions by an average of five per cent by 2012 against 1990 levels. The major distinction between the Protocol and the Convention is that while the Convention encouraged industrialized countries to stabilize Green House Gas emissions (GHG), the Protocol commits them to do so.

The Protocol also recognizes that industrialized countries are principally responsible for the current high level of GHG in the atmosphere due to 150 years of industrial activity and is based on a cap and trade mechanism. So the Protocol also places a heavier burden on developed nations under the principle of "common but differentiated responsibilities", which were listed and identified in Annex 1 of the UNFCCC and thereafter referred to as Annex 1 countries.

Signatories to the UNFCCC are split into three groups, Annex 1 (Industrialized countries) Annex 2 (countries that have a special obligation to provide financial resources and facilitate technology transfer to developing countries, these include the 24 original OECD members plus the European Union) and Annex 3 (developing countries not expected to de-carbonize their economies unless developed countries supply enough funding and technology). So far 137 developing countries (including India and China) have ratified the Protocol but none of these nations are obliged to reduce emissions.

Under the treaty, countries must meet their targets through national measures. However the Kyoto Protocol offers them an additional means of meeting their targets by way of three market-based mechanisms. They are:

Emissions trading schemes (ETS)

Known as "the carbon market", emissions trading is a market-based scheme for environmental improvement that allows parties to buy and sell permits for emissions or credits for reductions in emissions of certain pollutants.

Clean development mechanism (CDM)

A Clean Development Mechanism (CDM) allows Annex 1 countries to buy carbon credits by investing in sustainable projects in developing countries, such as energy from waste power plants or wind farms, which will reduce GHG emissions in those countries. These credits can then be counted towards an industrialized country's emissions targets. Understandably the CDM has proved to be highly controversial as an easy way out for industrialized countries without tackling the problems at home.

Joint implementation (JI)

Any Annex I country can invest in emission reduction projects (referred to as "Joint Implementation Projects") in any other Annex I country as an alternative to reducing emissions domestically. In this way countries can lower the costs of complying with their Kyoto targets by investing in greenhouse gas reductions in an Annex I country where reductions are cheaper, and then applying the credit for those reductions towards their commitment goal.

The aim is for these mechanisms to help stimulate green investment and help parties meet their targets in a cost effective way.

However, the Kyoto Protocol was not without problems as the United States, at the time the world's largest emitter, would have been required to reduce its total emissions by an average of seven per cent below 1990 levels, however neither the Clinton nor the Bush administration sent the Protocol to Congress for ratification. The Bush administration explicitly rejected the Protocol in 2001.

While the Kyoto agreement accomplished little in terms of slowing emissions it has however been successful in making the heads of 90 per cent of the world's governments acknowledge that climate change is a real problem. The Kyoto Protocol is set to expire in 2012 and in Denmark the COP 15 will attempt to hammer out the details and construct a final agreement for the period 2012 to 2020 to be signed in Copenhagen. This needs to be done by December in order to allow national governments time to prepare for implementation beyond 2012. The signs of achieving this however do not look positive.