At present time, little doubt remains that the world's climate is changing. Anthropogenic greenhouse gas emissions unbalance climatic and ecological equilibriums causing the so-called Global Warming.
This Global warming is the increase in the average temperature of the Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Global surface temperature increased during the last century. The Intergovernmental Panel on Climate Change (IPCC) concludes that most of the observed temperature increase since the middle of the 20th century was caused by increasing concentrations of greenhouse gases resulting from human activity such as fossil fuel burning and deforestation
Global warming directly threatens ecosystems and economies. The biodiversity loss and the current melting of the polar ice caps already testifies the influence of a warmer atmosphere and oceans. It also affect the international community as a whole, posing a grave problem for developing countries without the infrastructure and financial resources to address and adapt to rising oceans and diminishing water resources.