Desertification is taking its toll worldwide.

And this is the region most closely associated with desertification.

That's the kind of forced migration that desertification can lead to.

With the gradual desiccation of the Sahara, they headed south.

And so you get desertification creeping, creeping, creeping as the last of the trees are cut down.

Reforestation gets at one of the root causes of desertification and is not just a treatment of the symptoms.

In our accelerated media culture, desertification is simply too slow to reach the headlines.

Much of the non desert portions of the country are threatened by periodic drought and desertification.

Examples include World Tuberculosis Day, Earth Day, and the International Year of Deserts and Desertification.

We get droughts, increased desertification, crashing food systems, water scarcity, famine, forced migration, political instability, warfare, crisis.

It is well suited to semi arid lands and can contribute to slow down desertification, according to its advocates.

In the southern Sahara though, the drying trend was soon counteracted by the monsoon, which brought rain further north than it does today.

According to the National Plan to Combat Desertification PNCD, which defines desertification as land degradation in arid, semi arid and dry sub humid areas resulting from various factors such as climate change, human activities and excessive use of soil without moderation.

c. 5600 BC Beginning of the desertification of North Africa, ultimately leading to the creation of the Sahara desert.

The more vegetation we lose, the more that's likely to exacerbate climate change and lead to further desertification.

Water activity can be described as a ratio of the vapor pressure of water in a solution to the vapor pressure of pure water.

Desertification might sound similar to desert, but there is a fundamental difference between the two while deserts are one of nature s wonderful formations, desertification is a process of degradation that lands go through after they are affected by climate change, human activities, and natural forces until they eventually become deserts.

The cork oak is a tree species native to Portugal and plays an important role in retaining CO2, in preserving biodiversity and in combating desertification.

At this time, the term already alluded to the future consequences these plantations would have on the environment, including desertification, erosion, the elimination of biodiversity and human displacement.

And yet desertification is a major threat on all continents, affecting some 110 countries and about 70 percent of the world's agricultural drylands.

The municipality of San Fernando is inserted into the area susceptible to desertification in Very Serious category, as well as the entire region Seridó where it is inserted.

By contrast, Spain seems to be moving south, figuratively if not literally (witness the desertification affecting some parts of Andalusia).

At the same time desertification contributes to climate change by releasing to the atmosphere carbon stored in dryland vegetation and soils.

Little consideration, if any at all, has been given to the great problems facing the island regions of the Union whose shortcomings as regards infrastrucutres structure, transport, communication and energy has resulted in their gradual depopulation.

People are also being driven away from their homes, as blogger Miguel Angel Alvarado from El Salvador explains about the president s home needing to be moved because of desertification

Desertification is a real, issue, says Batjargal Zamba, a meteorologist and advisor to Mongolia s Environment Ministry. And according to the global warming, the arid area in Mongolia will expand.

And with desertification, sandstorms, the Gobi Desert, the Ogaden, we are finding increasing difficulty of a hectare to produce as many calories as it did even 15 years ago.

Everything is there in extreme form desertification, mass movements of populations, and, yes, genocidal violence but also the hope for new forms of economic growth, if not new modes of governance.

Current environmental degradation concerns include deforestation, soil erosion, desertification, air pollution in Beirut from vehicular traffic and the burning of industrial wastes, and pollution of coastal waters from raw sewage and oil spills.

The area has many environmental problems, including pollution, logging, the plundering and loss of flora and fauna and finally, desertification.

Really the Sahara Forest Project is a model for how we could create zero carbon food, abundant renewable energy in some of the most water stressed parts of the planet as well as reversing desertification in certain areas.

Many localized areas are subject to human made pollution of the air and water, acid rain and toxic substances, loss of vegetation (overgrazing, deforestation, desertification), loss of wildlife, species extinction, soil degradation, soil depletion, erosion, and introduction of invasive species.

And this animation, this shows photosynthetic activity over the course of a number of years, and what you can see is that the boundaries of those deserts shift quite a lot, and that raises the question of whether we can intervene at the boundary conditions to halt, or maybe even reverse, desertification.

Farmers were protesting in favor of an agreement between the government and the organization Articulação do Semi Árido Brasileiro (ASA) (Brazilian Semi Arid Network), which leads the project constructing cisterns for rainwater catchment and storage for beneficiary families, in the subregion of Brazil with the greatest problem with desertification.

Its governor was raised to the rank of consularis in 320, and the province remained one of the seven provinces of the diocese of Africa until the invasion of the Vandals in 428 AD, which began its slow decay, accompanied by desertification.

Although the influence of climate change on desertification has not been fully understood yet, according to GreenFacts, it is known that higher temperatures resulting from increased carbon dioxide levels can have a negative impact through increased loss of water from soil and reduced rainfall in drylands.

A retrospective on 40 years shows that if we had accounted for these costs the cost of loss of topsoil, the cost of loss of waterways, the lost productivity, the loss to local communities as a result of all these factors, desertification and so on those costs are almost twice as much as the market price of timber.