A forest is a large area of land covered with trees or other woody vegetation. Hundreds of more precise definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing and ecological function. According to the widely used United Nations Food and Agriculture Organization definition, forests covered an area of four billion hectares (15 million square miles) or approximately 30 percent of the world's land area in 2006.
Forests are the dominant terrestrial ecosystem of Earth, and are distributed across the globe. Forests account for 75% of the gross primary productivity of the Earth's biosphere, and contain 80% of the Earth's plant biomass.
Forests at different latitudes form distinctly different ecozones: boreal forests near the poles tend to consist of evergreens, while tropical forests near the equator tend to be distinct from the temperate forests at mid-latitude. The amount of precipitation and the elevation of the forest also affects forest composition.
4 Forests is another experimental album by Brian Dougans under the alias Part-Sub-Merged from 2007 which was released on The Future Sound of London's digital download website. It is the soundtrack to a short film made by the duo called "Part-Sub-Merged" to be released on FSOLdigital.com at some point in the near future. The music is darker than his "Polemical " work with analogue techno beats and synth ambience.
Composed, produced by Brian Dougans
The year 2011 was declared the International Year of Forests by the United Nations to raise awareness and strengthen the sustainable management, conservation and sustainable development of all types of forests for the benefit of current and future generations.
Forests are an integral part of global sustainable development. According to World Bank estimates, more than 1.6 billion people depend on forests for their livelihoods with some 300 million living in them. The forest product industry is a source of economic growth and employment, with global forest products traded internationally is estimated at $327 billion.
The UN’s Food and Agriculture Organization (FAO) estimates that every year 130,000 km² of the world's forests are lost due to deforestation. Conversion to agricultural land, unsustainable harvesting of timber, unsound land management practices, and creation of human settlements are the most common reasons for this loss of forested areas.
According to the World Bank, deforestation accounts for up to 20 percent of the global greenhouse gas emissions that contribute to global warming. FAO data estimates that the world's forests and forest soil store more than one trillion tons of carbon – twice the amount found in the atmosphere. The World Bank estimates that forests provide habitats to about two-thirds of all species on earth, and that deforestation of closed tropical rainforests could account for biodiversity loss of as many as 100 species a day.