The natural environment
comprises all naturally occurring surroundings and conditions in which living things grow and interact on Earth
. These include complete landscape
units that function as natural systems
without major human
intervention, as well as plants
, and natural phenomena
occurring within their boundaries. They also include non-local or universal natural resources
that lack clear-cut boundaries, such as air
The concept of the natural environment can be distinguished by components:
As human population numbers increase and as humans continue to evolve, human activity modifies the natural environment at a rapidly increasing rate, producing what is referred to as the built environment. The potential of the natural environment to sustain these anthropogenic changes while continuing to function as an ecosystem is an issue of major worldwide concern. Key environmental areas of interest include climate change, water supply and waste water, air pollution, waste management and hazardous waste, and land use issues such as deforestation, desertification, and urban sprawl.
A Tropical cyclone
is a storm system
characterized by a large low pressure
center and numerous thunderstorms
that produce strong winds and flooding rain
. Tropical cyclones feed on heat released when moist air
rises, resulting in condensation
of water vapor
contained in the moist air. They are fueled by a different heat mechanism than other cyclonic windstorms such as nor'easters
, European windstorms
, and polar lows
, leading to their classification as "warm core" storm systems. Studies have shown that global warming
may have increased the sea surface temperatures
, which intensify the frequency and intensity of tropical cyclone.
The term "tropical" refers to both the geographic origin of these systems, which form almost exclusively in tropical regions of the globe, and their formation in Maritime Tropical air masses. The term "cyclone" refers to such storms' cyclonic nature, with counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere. Depending on its location and strength, a tropical cyclone is referred to by many other names, such as hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, and simply cyclone.
Marjory Stoneman Douglas
(April 7, 1890 - May 14, 1998) was an eminent American
conservationist and writer.
She was most associated with battles to save the Florida Everglades from draining and over development, during which times she organized benefits and various marches. Her book The Everglades: River of Grass, written in 1947, has gone through numerous editions. It galvanized people to protect the Everglades. At the age of 78, she founded Friends of the Everglades, an organization which is still at the forefront of Florida conservation.
The Wildlife Trusts partnership, or simply The Wildlife Trusts, is a partnership of 47 local wildlife trusts in the United Kingdom plus the Isle of Man and Alderney.
Wildlife Trusts are local organisations of differing size, history and origins, and can vary greatly in their constitution, activities and membership. However, all wildlife trusts share a common interest in wildlife and biodiversity, rooted in a practical tradition of land management and conservation. Almost all county wildlife trusts are significant landowners, with many nature reserves. Collectively they are the third largest voluntary sector landowners in the UK. The partnership's member trusts, between them, look after 2,200 nature reserves covering 80,000 square hectares.
Wildlife Trusts are local organisations of differing size, history and origins, and can vary greatly in their constitution, activities and membership. However, all wildlife trusts share a common interest in wildlife and biodiversity, rooted in a practical tradition of land management and conservation. Almost all county wildlife trusts are significant landowners, with many nature reserves. Collectively they are the third largest voluntary sector landowners in the UK. They often have extensive educational activities, and programmes of public events and education. The Wildlife Trusts centrally and locally also lobby for better protection of the UK's natural heritage, by becoming involved in planning matters and by national campaigning through the Royal Society of Wildlife Trusts. The trusts rely heavily upon volunteer labour for many of their activities, but nevertheless employ significant numbers of staff in countryside management and education. Thanks to their work promoting the personal and social development of young people, the Wildlife Trusts is a member of The National Council for Voluntary Youth Services (NCVYS).
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