Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. About 31% of Earth's land surface is covered by forests at present. This is one-third less than the forest cover before the expansion of agriculture, with half of that loss occurring in the last century. Between 15 million to 18 million hectares of forest, an area the size of Bangladesh, are destroyed every year. On average 2,400 trees are cut down each minute. Estimates vary widely as to the extent of deforestation in the tropics. In 2019, nearly a third of the overall tree cover loss, or 3.8 million hectares, occurred within humid tropical primary forests. These are areas of mature rainforest that are especially important for biodiversity and carbon storage.
A forest is an ecosystem characterized by a dense community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds in situ. It does not include land that is predominantly under agricultural or urban use." Using this definition, Global Forest Resources Assessment 2020 found that forests covered 4.06 billion hectares, or approximately 31 percent of the world's land area in 2020.
Illegal logging is the harvest, transportation, purchase, or sale of timber in violation of laws. The harvesting procedure itself may be illegal, including using corrupt means to gain access to forests; extraction without permission, or from a protected area; the cutting down of protected species; or the extraction of timber in excess of agreed limits. Illegal logging is a driving force for a number of environmental issues such as deforestation, soil erosion and biodiversity loss which can drive larger-scale environmental crises such as climate change and other forms of environmental degradation.
The environment of Sri Lanka exhibits a remarkable biodiversity.
Deforestation in Cambodia has increased in recent years. Cambodia is one of the world's most forest endowed countries, that was not historically widely deforested. However, massive deforestation for economic development threatens its forests and ecosystems. As of 2015, the country has one of the highest rates of deforestation in the world.
Deforestation in Haiti is a complex and intertwined environmental and social problem. The most-recent national research on charcoal estimates that approximately 946,500 metric tons of charcoal are produced and consumed annually in Haiti, making it the second-largest agricultural value chain in the country and representing approximately 5% of GDP.
Deforestation in Nigeria refers to the extensive and rapid clearing of forests within the borders of Nigeria. This environmental issue has significant impacts on both local and global scales.
The Amazon rainforest, spanning an area of 3,000,000 km2, is the world's largest rainforest. It encompasses the largest and most biodiverse tropical rainforest on the planet, representing over half of all rainforests. The Amazon region includes the territories of nine nations, with Brazil containing the majority (60%), followed by Peru (13%), Colombia (10%), and smaller portions in Venezuela, Ecuador, Bolivia, Guyana, Suriname, and French Guiana.
Malaysia faces several environmental issues. Malaysia's environment possesses megadiverse biological diversity, with globally significant endemism and biodiversity, but is threatened by several issues. Deforestation is a major issue in the country that has led to many species becoming threatened with extinction. As a major economic sector, palm oil production has had a substantial environmental impact. Air pollution is also a major issue, with the country one of the most affected countries by seasonal Southeast Asian haze. The country is also affected by climate change.
Rates and causes of deforestation vary from region to region around the world. In 2009, two-thirds of the world's forests were located in just 10 countries: Russia, Brazil, Canada, the United States, China, Australia, the Democratic Republic of the Congo, Indonesia, India, and Peru.
Deforestation in Indonesia involves the long-term loss of forests and foliage across much of the country; it has had massive environmental and social impacts. Indonesia is home to some of the most biologically diverse forests in the world and ranks third in number of species behind Brazil and the Democratic Republic of Congo.
Like other island nations, Antigua and Barbuda faces unique environmental issues created by its proximity to the ocean, and small size. These include pressures on water resources, natural ecosystems, and deforestation more generally.
The principal environmental issues in Peru are water pollution, soil erosion, pollution and deforestation. Although these issues are problematic and equally destructive, the Peruvian Environmental ministry has been developing regulation and laws to decrease the amount of pollution created in major cities and have been making policies in order to decrease the present deforestation rate in Peru.
Kenya's forests are fragmented across the country. Combined, forests cover over 37 million hectares. Out of those 37 million hectares, 2.1 million are woodlands, 24.8 million are bush lands and 10.7 are wooded grasslands. Kenya's forests are important at a global level as they host 1847 species of amphibians, birds, mammals, and reptiles of which 4% are only found in Kenya. Beyond its fauna, Kenya's forest also hosts 6505 types of vascular plants, with 4.1% only being found in Kenya. Today Kenya faces high rates of deforestation which endanger both its fauna and flora. It has been estimated that since Kenya's independence in 1963, the forest cover has dropped from 10% of the nation to 6%, losing approximately 12,000 hectares annually. These levels of deforestation have impacted Kenya as they rely on the forest for the storage of rainwater, the prevention of flooding, the fertility of the soil, and the regulation of climate conditions. The World War II period and its aftermath made it clear to British colonial administration that reform was needed to sustain Kenyan forests. One of the first steps for conservation took place with the 1941 revision of the Forest Ordinance that passed legislation to create forest reserves and create a committee with professionals on matters of conservation. By 1950, the forest department had gained control of 100,000 acres, but it had a difficult time sustaining the conservation of these areas; it required meaningful policy to meet the constant attention these areas needed.
As in other Southeast Asian countries, deforestation in the Philippines is a major environmental issue. Over the course of the 20th century, the forest cover of the country dropped from 70 percent down to 20 percent. Based on an analysis of land use pattern maps and a road map an estimated 9.8 million hectares of forests were lost in the Philippines from 1934 to 1988.
According to a report by the Food and Agriculture Organization of the United Nations, Myanmar lost 19%, or 7,445,000 hectares, of forest between 1990 and 2010. With forest covering as much as 70% of Burma at the time of independence, there were only slightly more than 48% forest cover left as of 2014. The deforestation rate of Myanmar has declined from 0.95% per year in the years 1990–2010 to about 0.3% per year and deforestation in Myanmar is now less than other countries of the region such as Indonesia or Vietnam, but still remains an important environmental issue. Three main factors contribute to continued deforestation: unsustainable and illegal logging, unresolved land rights and land disputes and extensive agricultural development.
Deforestation in Nepal has always been a serious issue, which has a severe effect on the lives of poor people. In the past, Nepal was a widely forested nation. However now with the requirement for the extension of rural areas, migration of hills people to the plains, the developing regional interest for timber, and the local residents dependence on firewood as the essential source of energy, less than 30% of the nation's forest cover remains. Due to the continuous deforestation in Nepal, many people and creatures are dying. Around 70 percent of the people in Nepal work in agriculture, even if it is difficult to farm in the prevailing unfavourable weather conditions.
The Global Forest Resources Assessment (FRA) reports on the status and trends of the world's forest resources. It is led by the Food and Agriculture Organization of the United Nations (FAO).
Forest cover is the amount of forest that covers a particular area of land. It may be measured as relative or absolute. Nearly a third of the world's land surface is covered with forest, with closed-canopy forest accounting for 4 - 5 billion hectares of land. Forests provide many ecosystem services that humans and animals cannot survive without, but anthropogenic actions and climate change are threatening global forest cover in potentially irreversible ways.
The Niger Delta swamp forests is a tropical moist forest ecoregion in southern Nigeria. It consists of freshwater swamp forests in the Niger Delta of the Niger River. This swamp forest is the second largest in Africa after the Congolian swamp forests. Although there are large cities just outside the ecoregion, the area has been relatively isolated by the difficulty of building roads across the swamps, although this is changing with development of oil and logging industries. Scientific surveys have only begun in recent years, and new species were being identified into the 1990s. Crude oil exploration and pollution has been a threat to forests in the Niger Delta region.
