This report suggests that a new and explicit goal of sustainable development to be agreed as a result of Rio+20 should be the reduction of the rate of land degradation to achieve land degradation neutrality, which we refer to as “Zero Net Land Degradation” or ZNLD.

Drylands have always been the subject to intra- and inter-annul fluctuations of climate conditions, with important consequences for ecosystem function and productivity.

It took scientists more than three decades to transform a perceived desertification crisis in the Sahel into a non-event. Looking beyond the Sahel, the chapters in this book provide case studies from around the world that examine the use and relevance of the desertification concept.

Dryland mountains are among the least-known environments in the world, and certainly one of the most overlooked by decision- and policy-makers. Dryland mountains have an outstanding strategic value. They act as water towers for surrounding dry lowland areas, as shown by the examples of the Rocky Mountains of North America, the Central Andes, the mountains of the Mediterranean Basin, the Sahara and Sub-Saharan Africa, West Asia, and Central Asia

The Action Against Desertification (AAD) project supports eight countries – Burkina Faso, Ethiopia, Fiji,
Gambia, Haiti, Niger, Nigeria and Senegal – in the Africa, Caribbean and Pacific Group of States in the
sustainable management and restoration of degraded land. Baseline assessments have been carried
out in each of these countries to establish a reference against which to monitor changes and project
impacts, as well as to better target project activities and inform other stakeholders and restoration
initiatives in the eight countries.

What’s the goal here? To sustainably manage forests, combat desertification, halt and reverse land degradation, and halt biodiversity loss. Two billion hectares of land on Earth are degraded, affecting some 3.2 billion people, driving species to extinction and intensifying climate change. Goal 15: Life on land Human life depends on the earth as much as the ocean for our sustenance and livelihoods. Plant life provides 80 percent of the human diet, and we rely on agriculture as an important economic resources.

Facts and Figures: ➡ Every minute, 23 hectares of arable land are lost due to drought and desertification. ➡ Over the last two decades, approximately 20 per cent of the Earth’s vegetated surface has shown persistent declining trends in productivity, mainly due to unsustainable land and water use and management practices. ➡ Every year, 13 million hectares of forest are lost that are home to more than 80 per cent of all land-based species and which provide livelihood to 1.6 billion people.

Ecosystems and Biodiversity Facts and Figures # The IPBES Report (5) stated that “around 1 million animal and plant species are now threatened with extinction, many within decades, more than ever before in human history”.

Life on Earth depends on healthy soils. The soil under our feet is a living system – home to many fascinating plants and animals, whose invisible interactions ensure our well-being and that of the planet. Soils provide us with nutritious food and other products as well as with clean water and flourishing habitats for biodiversity. At the same time, soils can help slow the onset of climate change and make us more resilient to extreme climate events such as droughts and floods. Soils preserve our cultural heritage and are a key part of the landscapes that we all cherish.

The Great Green Wall is one of the main vehicles for delivering the Sustainable Development Goals and the Rio conventions in the Sahel. Biodiversity is the foundation of the Great Green Wall in many ways, determining soil productivity and water cycles and providing the foundation for risk management and resilient ecosystems. The Great Green Wall can make a major contribution to achieving many of the Sustainable Development Goals.

‘Over the past three decades hundreds of thousands of farmers in Burkina Faso and Niger, on the fringes of the Sahara Desert, have transformed large swathes of the region’s arid landscape into productive agricultural land, improving food security for about three million people. Once-denuded landscapes are now home to abundant trees, crops, and livestock.'

The latest IPCC report highlights that a change in diets for richer nations, and smarter land use, could ensure food security and mitigation of potential climate impacts.

Land surface processes — agriculture, forestry and other land use — account for 28% of anthropogenic emissions. However, natural land processes absorb about a third of the emissions from fossil fuel burning and energy production.