• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Is there a relationship between the frequency of natural hazards and climate change?

Extracts from this document...


Is there a relationship between the frequency of natural hazards and climate change? Mrs Blair By Max Winborne Is the frequency of hurricanes and related storm types increasing? Globally, there is an average of about 90 tropical storms every year. According to the 2007 Fourth Assessment Report of the Intergovernmental Panel on Climate "there is no clear trend in the annual numbers [i.e. frequency] of tropical cyclones." However, in the North Atlantic there has been a clear increase in the frequency of tropical storms and major hurricanes. From 1850-1990, the long-term average number of tropical storms was about 10, including about 5 hurricanes. For the period of 1998-2007, the average is about 15 tropical storms per year, including about 8 hurricanes. This increase in frequency correlates strongly with the rise in North Atlantic sea surface temperature, and recent scientific studies link this temperature increase to global warming. There is an ongoing scientific debate about the link between increased hurricane activity(and related storm types) and global warming. The 2007 report of the Intergovernmental Panel on Climate Change rates the probability of such a link as "more likely than not". Most agencies around the world today tend to agree that there is a increase in storms that cause hurricanes and other ...read more.


Gustav avoided directly striking major population centers in the U.S. but caused severe flooding and wind damage in more rural areas. * Hurricane Hanna briefly attained category 1 strength but spent most of its life as a strong tropical storm. It struck Haiti on September 1, dropping heavy rains and causing severe flooding and landslides that killed more than 500 people. Hanna was the deadliest tropical storm in the Atlantic so far this year. On September 6, Hanna made landfall in the U.S. near the South Carolina-North Carolina border and caused severe flooding in several states as it moved northward along the Atlantic Coast. * Hurricane Ike made landfall in the Bahamas and Turks and Caicos islands as a category 4 hurricane, causing devastation on some of the islands. Later, Ike made landfall as a category 3 hurricane in Haiti and Cuba, where it killed at least 82 people (mostly in Haiti). On September 13, Ike made landfall in Galveston, Texas, as a strong category 2 hurricane. Galveston and other coastal towns were devastated by wind and storm-surge damage. Wind damage was also severe in nearby Houston, where windows were blown out of downtown skyscrapers. ...read more.


El Ni�o and La Ni�a are both a normal part of the earth's climate and there is recorded evidence of their having occurred for hundreds of years. Is global warming generating other types of severe weather? Global temperature has increased and precipitation patterns have changed over the 20th century as a result of human-induced global warming, resulting in some increases in extremes of temperature and precipitation. According to the IPCC, "increases in the amount of precipitation are very likely in high-latitudes, while decreases are likely in most subtropical land regions," and "it is very likely that hot extremes, heat waves, and heavy precipitation events will continue to become more frequent." Basically increasing sea temperatures caused by global warming lead to it a higher likelihood that the set of conditions required for a hurricane to form are met more frequently seen around the world - El Ni�o just exacerbates this problem as an already unusually hot ocean is just warmed even further...... you can think of global warming as an event that's causing permanent El Ni�o conditions in areas of the world that are unprepared to deal with a large hurricane disaster, so its interesting for us to study El Ni�o as an model for a future global climate ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Atmosphere & Weathering section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Atmosphere & Weathering essays

  1. Identify the conditions which lead to the formation of an intense tropical low pressure ...

    also stir up the waters of coastal estuaries, which are typically important fish breeding areas. Tropical cyclone destruction spurs an injection of investment - greatly increasing local property values after economic regeneration has taken place. Hurricane Katrina provides a good example for the varying impacts that intense low tropical systems cause.

  2. Free essay

    Climatic Hazards (Atmospheric Circulation)

    .E.g. Wales is wetter than London because it is more western and also mountainous. There is also Land and Sea which has an affect on climate zones, simply because the sea is more transparent than the land and is capable to heating up to a depth of 10m.

  1. Acid rain study

    The decline of trees in areas such as Scandinavia and Brazil have resulted in nutrients such as Magnesium and Calcium being washed away as there is no canopy to protect the undergrowth. This has now led to soil erosion and loss of humus in soils.

  2. Extreme Weather Event: Tropical Cyclones in Bangladesh

    -People physically injured. -Smell of dead corpses. -People lose a lot of food in the storm. -When the farmer's animals die, they cannot sell any food to other people. -The storm brings all the sea life nearer to the land. Long Term -Homes are destroyed. -People get diseases. -Families die.

  1. In the experiment mimicking extratropical cyclones, how does the apparatus represent the atmosphere of ...

    As follows, the equation for the circulation as the radius decreases is C2=(C1xR1)/R2. If R2 is a smaller value than the circulation would be at a higher intensity, thus a smaller radius has a tremendous effect. Like in the sink experiment, hurricanes have an initial angular momentum: the Coriolis effect, or the rotation of the Earth.

  2. Climate in different cities around the world

    Brazil can experience heavy rainstorms because of its tropical climate; this will affect transportation and many tourists will not choose to visit Brazil when this season occurs. During the summer season, a lot of tourist will choose to visit Brazil because of the ideal holiday weather.

  1. The aim of this project was to investigate what differences exist in temperatures in ...

    to find shade to obtain the air temperature, and, on Saturday, the clouds provided the shade. I was also able to obtain the temperatures at roughly the same time in each test, and in a satisfactorily short amount of time, so that time of day was not a major factor in the expected temperature variation.

  2. Explain why many scientists believe that human rather that natural causes may be more ...

    Other theories that scientists have proposed include sunspots which are variations in solar output, making darker areas of the sun have an increased output on an 11 year cycle, and also the impacts volcanic eruptions releasing particles into the atmosphere that absorb infrared radiation, heating up the earth?s surface.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work