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Moringa Tree And Its Role In Green Economy
Written by Cyrus Gachanja
Trees have played a critical role in maintaining safe levels of oxygen and carbon dioxide (CO2) in the atmosphere and providing food to animals for millions of years. Trees remove and store CO2 from the atmosphere as they grow. In our entire lifetime, trees play an important role in addressing climate change and enhancing Sustainable Development for Agriculture in the Global context.
At present the world is covered by approximately 30% forest or less than 4 billion hectares. This is at least one third less than before the dawn of agriculture.
Global deforestation continues at around 13 million hectares per year. Mankind needs to replant the earth to restore balance.
Trees quite literally form the foundations of many natural systems. They help to conserve soil and water, control avalanches, prevent desertification, protect coastal areas and stabilize sand dunes.
Forests are the most important repositories of terrestrial biological biodiversity, housing up to 90 per cent of known terrestrial species.
Trees and shrubs play a vital role in the daily life of rural communities. They provide sources of timber for fuel, wood, food, fodder, essential oils, gums, resins and latex, medicines and shade. Forest animals have a vital role in forest ecology such as pollination, seed dispersal and germination.
Carbon in forest biomass decreased in Africa, Asia and South America in the period 1990–2005. For the world as a whole, carbon stocks in forest biomass decreased annually by 1.1 Gigatonne of carbon (equivalent to 4 billion 25kg sacks of charcoal).
The loss of natural forests around the world contributes more to global emissions each year than the transport sector. Curbing deforestation is a highly cost-effective way to reduce greenhouse gas emissions.