Bushfire

Hot, burning and destructive.

  • A bushfire is an out of control fire, which may have been deliberately lit, accidentally lit, or started by a natural cause.
  • Other names for  bushfires are wildfires, brush fires, forest fires, desert fires, grass fires, hill fires, vegetation fires and veldfires.
  • Bushfires occur on every continent except Antarctica.
  • In the United States of America, 60,000 – 80,000 bushfires typically occur every year.
  • The major natural bushfire starters are lightning, volcanic eruptions, rockfall sparks or, plainly, self heating.

Bushfire, Wildfire, Forest Fire, Fire, No leaves, trees, Ten Random Facts, Free Stock Photos

Bushfire
Image courtesy of Free Stock Photos
  • Bushfires are fuelled from vegetation which could be above or below the surface.
  • People help prevent bushfires spreading by clearing debris and vegetation.  A common form of clearing is back burning, where a controlled fire is burnt towards the fire threat to reduce the fuel load.
  • The smoke from bushfires normally contain carbon monoxide, sulphur dioxide and formaldehyde.
  • According to the Inquirer News, bushfires kill 339,000 people every year.
  • The worst bushfire recorded in the last 150 years was the Peshtigo fire in Wisconsin and Michigan in the US, killing at least 1200 people.
Bibliography:
Wildfire 6 December 2012, Wikipedia, <http://en.wikipedia.org/wiki/Wildfire>

Floods

Floods are real bad!

  • Floods are the world’s deadliest natural disaster and happens when water overflows its usual gathering place.
  • The deadliest known flood in history was the China flood in 1931, which killed 2.5 – 3.7 million people.
  •  Flash floods are floods that appear quickly and are short and destructive and normally take place on slopes and mountains.
  • Flooding brings diseases and chemicals to towns which can kill many people.
  • The most common ways people die due to floods, are when people try to cross flood waters, or are trapped in their house.

2010 -2011 December - January Warwick Floods, Queensland Australia floods, Condamine river, Ten Random Facts, Broken road, bridge

  • Sometimes the government purposely floods other areas to avoid mass destruction of  high populated areas.
  • Sloped flood barriers, normally steel or plastic, sand bags, walls and bridges are used to help defend flood waters.
  • When evacuating from floods, boats are typically used, although sometimes people are air lifted via helicopter.
  • People should not enter flood waters due to the dangers of diseases, underground hazards or sea animals, including sharks.
  • People use computers and 3D maps to help predict where floods will appear and there extent, as well as flood likeliness in a particular area.
Bibliography:
Mason, P 2011, Floods, Macmillian Library, Australia
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