Tag: Nash equilibrium

At the end of two weeks of often acrimonious wrangling between representatives from 193 countries, an agreement – of sorts – was reached at the climate change summit in Copenhagen. What was this agreement? It was an ‘accord’ brokered by the USA, China, India, Brazil and South Africa.

This Copenhagen Accord contains three elements. The first is a recognition of the need to prevent global temperatures rising by more than 2 degrees Celsius above pre-industrial levels. The second is a commitment by developed countries to give $30bn of aid between 2010 and 2012 to developing countries for investment in green technology and to mitigate the effects of climate change. In addition, a goal was set of providing $100bn a year by 2020. The third is for rich countries to give pledges on emissions reductions and for developing countries to give pledges on reducing emissions increases. Developed countries’ pledges will be scrutinised by the UN Framework Convention on Climate Change, while developing countries will merely be required to submit reports on their progress in meeting their pledges.

But this is only an accord. It has no legal status and was merely ‘recognised’ by the countries at the conference. What is more, the target of limiting temperature rises to 2C does not contain a date by which temperature rises should peak. Also, as countries are not required to submit targets for emissions until February 2010, it is not clear how these targets will be kept low enough to meet the temperature target and there is no identification of penalites that would apply to countries not meeting their pledges.

Not surprisingly, reactions around the world have been mixed. The following podcasts and articles look at these reactions and at the economic mechanisms that will be required to meet the 2C limit

Podcasts and videos

Recriminations after Copenhagen summit (video) BBC News, David Loyn (21/12/09)
Copenhagen special: Climate change talks end in failure Guardian podcast (19/12/09)
Where do we go after Copenhagen? BBC Today Programme (21/12/09)

Articles

What was agreed and left unfinished in U.N. climate deal Reuters of India Factbox (20/12/09)
Copenhagen deal: Key points BBC News (19/12/09)
Copenhagen deal reaction in quotes BBC News (19/12/09)
Copenhagen climate summit fails green investors BBC News, Damian Kahya (22/12/09)
Why did Copenhagen fail to deliver a climate deal? BBC News (22/12/09)
Copenhagen climate accord: Key issues BBC News (19/12/09)
Harrabin’s Notes: After Copenhagen BBC News, Roger Harrabin (19/12/09)
Copenhagen climate conference: Who is going to save the planet now? Telegraph, Louise Gray (21/12/09)
Copenhagen’s One Real Accomplishment: Getting Some Money Flowing New York Times, James Kanter (20/12/09)
Copenhagen climate summit: plan for EU to police countries’ emissions (including video) Telegraph, James Kirkup, and Louise Gray (19/12/09)
The road from Copenhagen Guardian, Ed Miliband (UK Secretary of State for Energy and Climate Change) (20/12/09)
Carbon Prices Tumble After ‘Modest’ Climate Deal Bloomberg, Mathew Carr and Ewa Krukowska (21/12/09)
Copenhagen deal causes EU carbon price fall BBC News (21/12/09)
Have the hopes of environmentalists been dashed? Financial Times, Clive Cookson (21/12/09)
EU reflects on climate ‘disaster’ Financial Times, Joshua Chaffinin (22/12/09)
China not to blame on climate China Daily, Zhang Jin (23/12/09)
Selling a low-carbon life just got harder Times Online, Jonathon Porritt (21/12/09)
Better than nothing The Economist (19/12/09)
Copenhagen has given us the chance to face climate change with honesty Observer, James Hansen (27/12/09)

Questions

  1. What incentives exist for countries to agree to tough pledges to reduce emissions?
  2. Was the very limited nature of the Copenhagen Accord a Nash equilibrium? Explain.
  3. Is the carbon price a good indicator of the effectiveness of measures to curb emissions?
  4. Must any agreement have verifiable targets for each country of the world if it is to be successful in curbing carbon emissions?
  5. Is a cap-and-trade system the best means of achieving emissions reductions? Explain.