Desertification poses a severe threat in the West African state of Mauritania, and Mohamed Yahya Lafdal is on the front lines of fighting the scourge.
Mangroves, it could be said, have perfected the art of multi-tasking. Found along tropical coastlines, these trees and shrubs may prevent soil erosion, while their roots create breeding places for various marine species. So, when a particular mangrove forest is shown to have been reduced by two thirds in less than 20 years, there is major cause for concern.
No more grass for livestock to graze on. No more water, either. More than 50 stock animals dead. For farmer Samba Diallo, staying in Burkina Faso was no longer an option.
Kompienga, in eastern Burkina Faso, is the country's most verdant province - but for how long?
"You can grow anything here," says 76-year-old Mohamed Ahmed, spreading his arms wide to point to the cascading bougainvilleas and an orchard of mango trees drooping with fruit. But, "When I first came here, there was nothing here but sand and more sand."
Water resources are unevenly distributed throughout the countries of Southern Africa. The region boasts of some of the world’s largest lakes and rivers, but is also a land of vast deserts.
It is a paradox of note: the fact that while Nigerians live in the world's sixth-largest oil producer, most of them still rely on wood for their fuel.
Dardy Saint-Jean gazes at the rock-strewn river coursing through his village and shakes his head in disgust.
Two years ago, several West African states found themselves in the grip of severe food shortages - with some three million people affected in Niger alone. Children died, aid officials wrung their hands, people marched in Niger's capital, Niamey, to demand food...But were lessons learned - really learned - to ensure that the crisis does not recur?
In reviewing the literature on soil erosion, references to the "loss of protective vegetation" occur again and again. Over the last half-century, we have removed so much of that protective cover by clearcutting, overgrazing, and overplowing that we are fast losing soil accumulated over long stretches of geological time.
Sogbéné Soro claims to be able to treat a variety of ailments: leprosy, diarrhea and ringworm to name a few. But, this traditional healer is finding it increasingly difficult to ply his trade. "I am faced with a shortage of certain plant species that have medicinal properties," he told IPS.
For 'newTree-nouvelarbre', a non-governmental organisation (NGO) that works largely in Burkina Faso, good fences don't only make good neighbours - they also make a line of attack against land degradation.
Nigeria and Niger, in West Africa, are neighbouring states. But the two countries have more than a border in common; they are also share a number of river basins that are under threat, and the responsibility for conserving them.
For South African author Leonie Joubert, global warming is a grass roots issue - literally.
Water is not the stuff of business, it is a basic human right. Hama Arba Diallo, outgoing executive secretary of the Convention of the United Nations to Combat Desertification (UNCCD), is convinced that the United Nations is about to formally recognise this principle, possibly by 2008.
In 1938, Walter Lowdermilk, a senior official in the Soil Conservation Service of the U.S. Department of Agriculture, traveled abroad to look at lands that had been cultivated for thousands of years, seeking to learn how these older civilisations had coped with soil erosion.
In the southern Togolese village of Yoto Kopé, Akoua Amouzouvi and several other women emerge from the bush with bowls of charcoal balanced on their heads - hands and faces smeared with black dust.
Years of working in West Africa have given agricultural technician Henri Girard many insights into what is needed to halt land degradation in the region.
In Côte d'Ivoire, the importance of a forest can go far beyond its environmental significance, as critical as this may be. Certain wooded areas are viewed as sacred.
With the World Day to Combat Desertification set to take place shortly (Jun. 17), efforts are gearing up to highlight the threats posed by land degradation in much of Africa - as well as initiatives to safeguard against desertification.
The return in 1996 of over a million Rwandans who had fled their country in the wake of genocide two years earlier, fearing persecution at the hands of Tutsi rebels who took control of Rwanda, was greeted with relief in many quarters.