Illegal construction (also known as illegal building or illegal housing) is construction work (or the result of such) without a valid construction permit. Besides the potential technical hazards on uncontrolled construction sites and in finished buildings, illegal building activity can be a major environmental violation when the works encroach upon preserve areas like nature reserves. Likewise, illegal building can have serious political implications when it is practiced as landgrabbing or for illegal settling in foreign territories (see e.g. International law and Israeli settlements).
Illegal building can be the consequence of a combination of urbanization, overpopulation, homelessness and poverty in which case expanding slums, Shanty towns or similar will result. On the other hand, illegal building activity may be due to profitable speculation with and exploitation of valuable real property. Demand for mass tourism accommodation (hotels, etc.) as well as its counterpart, individualistic luxury retreats for the very rich are visible drivers of such speculation. Similar motivation may come from incentives connected with the illegal construction of great shopping malls or similar on greenfield land.[ citation needed ]
Even construction works with apparently valid permits can be a result of bribery.[ citation needed ]
In some cases it can be observed that legal or tolerated settlements are later declared illegal by governmental institutions in order to make room for more lucrative investments or simply for political demonstration purposes (see e.g. Operation Murambatsvina) sometimes under the pretext of beautification.[ citation needed ]
An infamous example of organized illegal construction can be found in the so-called Sack of Palermo.
Increased landslide risk has been found to be associated with illegal building in hillside regions of densely populated urban areas in Italy [2] and Bosnia and Herzegovina, [3] because of loss of stabilizing vegetation by deforestation, etc.. Due to uncontrolled increase in impervious surface, the role of illegal construction has also been discussed in connection with flash floods (see 2011 European floods#Italy).
In addition to human observation, large-scale screening for illegal building (activity) can also rely on remote sensing technology using satellite imagery (e.g. from EROS B, IRS-P5,...) and geospatial information systems. [4]
A ghost town, deserted city, extinct town, or abandoned city is an abandoned settlement, usually one that contains substantial visible remaining buildings and infrastructure such as roads. A town often becomes a ghost town because the economic activity that supported it has failed or ended for any reason. The town may have also declined because of natural or human-caused disasters such as floods, prolonged droughts, extreme heat or extreme cold, government actions, uncontrolled lawlessness, war, pollution, or nuclear and radiation-related accidents and incidents. The term can sometimes refer to cities, towns, and neighborhoods that, though still populated, are significantly less so than in past years; for example, those affected by high levels of unemployment and dereliction.
A flood is an overflow of water that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding. Examples for human changes are land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees. Global environmental issues also influence causes of floods, namely climate change which causes an intensification of the water cycle and sea level rise. For example, climate change makes extreme weather events more frequent and stronger. This leads to more intense floods and increased flood risk.
A natural disaster is the highly harmful impact on a society or community following a natural hazard event. Examples of natural hazard events include floods, droughts, earthquakes, tropical cyclones, volcanic activity, wildfires. A natural disaster can cause loss of life or damage property, and typically leaves economic damage in its wake. The severity of the damage depends on the population's disaster preparedness and on the existing infrastructure. Scholars have been saying that the term natural disaster is unsuitable and should be abandoned. Instead, the simpler term disaster could be used, while also specifying the category of hazard. A disaster is a result of a natural or human-made hazard impacting a vulnerable community. It is the combination of the hazard along with exposure of a vulnerable society that results in a disaster.
Stormwater, also written storm water, is water that originates from precipitation (storm), including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil (infiltrate) and become groundwater, be stored on depressed land surface in ponds and puddles, evaporate back into the atmosphere, or contribute to surface runoff. Most runoff is conveyed directly as surface water to nearby streams, rivers or other large water bodies without treatment.
Land development is the alteration of landscape in any number of ways such as:
Sand mining is the extraction of sand, mainly through an open pit but sometimes mined from beaches and inland dunes or dredged from ocean and river beds. Sand is often used in manufacturing, for example as an abrasive or in concrete. It is also used on icy and snowy roads usually mixed with salt, to lower the melting point temperature, on the road surface. Sand can replace eroded coastline. Some uses require higher purity than others; for example sand used in concrete must be free of seashell fragments.
The MeenachilRiver or Meenachilaar, also known as Kavanar, Valanjar, is a river in Kerala. It is one of the most treacherous rivers in Kerala due to its flash floods, heavy undercurrents and woods and debris it carries from the mountains. It flows through the heart of Kottayam district, Kerala state in southern India. 78km long, originates in the Western Ghats main tributaries are Theekoy aaru from Vagamon hills, Poonjar Aaru and Chittar, flowing westward through the city of Kottayam and other towns like Poonjar, Teekoy, Erattupetta, Bharananganam, Pala, Mutholy, Cherpunkal, Kidangoor and Kumarakom before emptying into the Vembanad Lake on the shore of the Indian Ocean.
Geoscience Australia is an agency of the Australian Government. It carries out geoscientific research. The agency is the government's technical adviser on all aspects of geoscience, and custodian of the geographic and geological data and knowledge of the nation.
In geography, statistics and archaeology, a settlement, locality or populated place is a community of people living in a particular place. The complexity of a settlement can range from a minuscule number of dwellings grouped together to the largest of cities with surrounding urbanized areas. Settlements include hamlets, villages, towns and cities. A settlement may have known historical properties such as the date or era in which it was first settled, or first settled by particular people. The process of settlement involves human migration.
Baikunthapur is a Terai forest region in the western part of the Dooars in West Bengal, India, south of the Himalayan foothills, between the Mahananda River to the west and Teesta River to the east. The main towns in the area are Siliguri and Jalpaiguri. The forests are partly in the Darjeeling district and partly in the Jalpaiguri district.
UN-SPIDER is a platform which facilitates the use of space-based technologies for disaster management and emergency response. It is a programme under the auspices of the United Nations Office for Outer Space Affairs (UNOOSA).
Flood control methods are used to reduce or prevent the detrimental effects of flood waters. Flooding can be caused by a mix of both natural processes, such as extreme weather upstream, and human changes to waterbodies and runoff. Flood control methods can be either of the structural type and of the non-structural type. Structural methods hold back floodwaters physically, while non-structural methods do not. Building hard infrastructure to prevent flooding, such as flood walls, is effective at managing flooding. However, best practice within landscape engineering is more and more to rely on soft infrastructure and natural systems, such as marshes and flood plains, for handling the increase in water.
The economy of Saskatoon has been associated with potash, oil and agriculture resulting in the moniker POW. Saskatoon's other nickname, the "Hub City," refers its ideal central location for distribution and logistics. Various grains, livestock, oil and gas, potash, uranium, wood and their spin off industries fuel the economy. The world's largest publicly traded uranium company, Cameco, and the world's largest potash producer, Nutrien, have corporate headquarters in Saskatoon. Nearly two-thirds of the world's recoverable potash reserves are located in the Saskatoon region.
Lead-based paint was widely used in the United States because of its durability. The United States banned the manufacture of lead-based house paint in 1978 due to health concerns.
A hazard is a potential source of harm. Substances, events, or circumstances can constitute hazards when their nature would potentially allow them to cause damage to health, life, property, or any other interest of value. The probability of that harm being realized in a specific incident, combined with the magnitude of potential harm, make up its risk. This term is often used synonymously in colloquial speech.
The European Severe Storms Laboratory (ESSL) is a scientific organisation that conducts research on severe convective storms, tornadoes, intense precipitation events, and avalanches across Europe and the Mediterranean. It operates the widely consulted European Severe Weather Database (ESWD).
A boomtown is a community that undergoes sudden and rapid population and economic growth, or that is started from scratch. The growth is normally attributed to the nearby discovery of a precious resource such as gold, silver, or oil, although the term can also be applied to communities growing very rapidly for different reasons, such as a proximity to a major metropolitan area, huge construction project, or attractive climate.
Permit-to-work (PTW) refers to a management system procedure used to ensure that work is done safely and efficiently. It is used in hazardous industries, such as process and nuclear plants, usually in connection with maintenance work. It involves procedured request, review, authorization, documenting and, most importantly, de-conflicting of tasks to be carried out by front line workers. It ensures affected personnel are aware of the nature of the work and the hazards associated with it, all safety precautions have been put in place before starting the task, and the work has been completed correctly.
A flooded mine is one of the direct results of a mine's closure procedure. When a mine stops operating, its maintenance systems also stop, in which the dewatering systems are included. Without these systems the mine will get flooded by water that naturally occurs in rock formations in the ground.
Sand smuggling is the cross-border environmental crime of illegal transportation of often illegally extracted natural sand and gravel. While sand smuggling and illegal mining are global concerns, they are especially acute in Asia, where continuing urbanization and the region’s large construction boom are driving the increasing demand for sand. The consequences of excessive sand mining and smuggling, which are strongly connected, range from environmental degradation to geopolitical tension.