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

    As we move further away from the sea, the temperatures get warmer, until we reach the Fort Widley location at the top of Portsdown Hill in the north, where the temperatures are warmest. These results were collected in July, the height of the British summer months.

  2. Free essay

    Climatic Hazards (Atmospheric Circulation)

    the Atlantic Ocean picking up moisture and then crossing the UK which has a small land mass hence why we have a temperate climate, and also why coastal areas are warm in the winter and cool in the summer and in land areas are warm in the summer and cool

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

    However, the circulation can change and become more intense. Water is loss when it drains down the sinkhole and so the remaining swirl of water has a decreasing radius. The following is true C1*R1=C2*R2 given that C1 is circulation and R1 is radius for a wide/slow swirl and C2 and R2 refer to a intense vortex like swirl .

  2. To ehat extent is climate change a lot of hot air?

    The hockey stick graph is used by many people to prove that average global temperatures are rising at an exponential rate. The statistical methods used to create the hockey-stick graph were so devastatingly exposed, that the graph has become one of the most comprehensively discredited artifacts in the history of science.

  1. Global Warming

    Even if the earth's temperature has increased slightly, the increase is well within the natural range of known temperature variation over the last 15,000 years. Indeed, the earth experienced greater warming between the 10th and 15th centuries - a time when there were vineyards in England- this period is known

  2. Describe the characteristic features of a biome of one tropical region that you have ...

    a weaker, non-complexing (non-separating) acid which raises the soil pH to 5. Clays in the soils are broken down into silicates which at this pH have the highest solubility in water, whereas iron and aluminium are comparatively insoluble and as a result are not hydrated.

  1. Describe The Problem Of Global Warming

    Scientists have warned in their reports that most of the glaciers will disappear within a period of 15 to 25 years. It will create problems of drinking water and food grains in most of the North American countries. India is not unaffected from it.

  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