The evidence for climate change is overwhelming. It has been reconfirmed by successive international studies and reports over the last two decades. Catastrophic climate change, which will threaten our entire ecosystem as we know it, is possible, though not yet probable. It is likely to happen if we do not change course and continue to ignore the evidence before our eyes: escalating temperatures will cause a big rise in sea level and the release of methane from the tundra will take us towards a tipping point where living creatures are unable to adapt to the changes fast enough.

The threat posed by rising sea levels has been the centrepiece of climate change negotiations, the main issue emphasized by Small Island Developing States, also known as the SIDS. The poorer countries flanked by large bodies of water -- who have contributed the least to global warming, including rapid sea-level rise -- now find themselves at the precarious mercy of the historical polluters.

Despite the fact that Latin America and the Caribbean have the largest freshwater resources per capita, a third of the region's population is cut off from sustained access to drinking water. Up until a few years ago, freshwater problems had been generally characterized as a result of inequitable natural distribution, lack of adequate financing for water infrastructure, poor freshwater governance, or a combination of the three.

About 99 per cent of climate change casualties take place in the developing world. While economic growth and development are priorities in all countries, the needs in developing and least developed countries are on a different scale altogether. Developing countries are constrained by their particular vulnerability to the impacts of fickle weather and climate. The poor in these countries are at a higher risk to future climate change, given their heavy dependence on agriculture, strong reliance on ecosystem services, rapid growth and concentration of population and relatively poor health services.

How does Africa intend to deal with climate change and how can it help shape a better future for itself in the face of the coming environmental catastrophe? As concerns grow, the continent will for the first time negotiate under one umbrella in Copenhagen.

I saw at one time a leaflet that asked people to come together in stopping climate change. It seems that many are not aware that the climate changes all the time and that the change is not stoppable. Climate changes, however, differ in their timing and magnitude and are a result of many factors, such as the distance between the sun and the equator, which contributes to the heat budget of the Earth, and the difference in the temperature of the equator from that of the cooler poles due to deviations in Earth's orbit, or variations in solar radiation.

Loss of habitat is the greatest threat to biological diversity, and 85 per cent of the species on the 2006 Norwegian red list are threatened by changes in habitat. Highly-specialized species appear to be the most vulnerable. The polar bear is one such species, and the extent and sustainability of sea ice is essential for its survival. The global population of polar bears consists of roughly 20,000-25,000 individuals spread between 19 sub-populations.

When it comes to the subject of energy in the Middle East, we instinctively think of oil -- the black gold that has been the source of stable and healthy economies in the region. Nevertheless, this is about to change. With the lead up to the United Nations Climate Change Conference in Copenhagen, Governments are realizing the imminent threat of climate change, and that there is no choice but to act fast.

Renewable energy is expensive -- we cannot afford it. I have heard this argument many times over. But those who bring it up are wrong. The costs of renewable energy are not higher than those for conventional energy. Instead people confuse costs with prices and need to be better aware that the market price of conventional energy does not tell the truth.

The four of us, which included Staffan de Mistura, were standing on that blue line that separates southern Lebanon from Israel and that is overseen by the United Nations. The distant throbbing of engines from vehicles driven by the Blue Helmets could be heard over the subtle fluttering of the blue UN flag flapping in the wind. It was dusk. In silence we stared out over the horizon formed by this border under surveillance, in the reassuring harmony of the pink and blue pastel shades of evening that illuminated our faces.