IF no international agreement is reached to mitigate the effects of climate change, the cost for Latin America and the Caribbean could be equivalent to 137 per cent of the region’s current GDP by 2100, asserts the Economics of Climate Change in Latin America and the Caribbean.

The study, which outlines the economic impact of climate change in the region, was presented earlier this week during a side event of the XV Conference of the Parties to the United Nations Framework Convention on Climate Change (known as COP 15) taking place in Copenhagen.

The report forecast

that without international mitigation actions, by the end of this century, the region could suffer important losses in agriculture and biodiversity, strong pressures on infrastructure and a growing intensity of natural disasters. These accumulated losses would represent a significant proportion of current GDP.

The estimates are based on calculations for 15 nations: Argentina, Belize, Bolivia, Chile, Costa Rica, Ecuador,

El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Dominica Republic, and Uruguay.

The reports prepared by the Economic Commission for Latin America and the Caribbean with the collaboration of the governments of Germany, Denmark, Spain and the United Kingdom, as well as the European Union, the Inter American Development Bank (IDB), the Global Mechanism of the United Nations Convention to Combat Desertification, and a broad network of academic and research institutions.

Although Latin America and the Caribbean is the second region in the world with the lowest greenhouse gas emissions after Africa, it is nevertheless suffering the effects of global warming more than any other, says the report. This urgently demands technological and financial support from developed countries for the region’s efforts of adaptation

and mitigation.

The report stresses that the economic costs are very heterogeneous between countries and regions and will be unpredictable (non-lineal) throughout the century.

For example, some countries will experience temporary benefits in their agriculture sectors as a result of less than a 2 degrees celsius rise in temperature and changes in rainfall, although in the long run the negative effects will predominate. With a global temperature rise over 3 degrees celsius, some countries or regions could lose up to 30 per cent or 40 per cent of

their biodiversity.

Agricultural productivity in Argentina, Chile and Uruguay will benefit if the temperature increases between 1.5 degrees celsius and 2 degrees celsius during 2030-2050. However, if the temperature rises above that, the effects will

be negative.

By 2100, the proportion, of degraded land in Bolivia, Chile, Ecuador, Paraguay and Peru will range from 22 per cent to 62 per cent of their total territory. The availability of water will diminish as well, especially in South America.

Rising sea levels will lead to the displacement of populations and the loss of lands due to permanent flooding. Small Caribbean islands will be strongly impacted. Mangroves on lower coasts (Brazil, Colombia, Ecuador, French Guiana and Guyana) may disappear and the coastal areas of Rio de la Plata (River Plate) in Argentina and Uruguay may be seriously threatened.

A 3 degrees celsius in global temperature could lead to a sharp drop in precipitations in the Amazon region, causing a substantial deterioration of jungles that are home to one of the world’s largest concentrations of biodiversity.

Climate variations and extreme weather events will mean that by 2100, the cost of climate disasters will increase from an annual average of US$8.6 billion (2000-2008) to a maximum possible of almost US$250 billion.

In this context, ECLAC calls for designing a strategy for regional public policies that many reduce the most serious effects of climate change

based on:

* Preserving biodiversity and natural resources for future generations

* Acknowledging the need to revise lifestyles and promote cultural change

* Promoting technological innovation for sustainable development

* Ensuring the transition to low-carbon economics, recognising that the era of cheap, almost-limitless fossil energy is coming to an end, and adjusting relative prices in consequence.