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

Does Global Warming exist?

Extracts from this document...


Does Global Warming exist? Evidence For: Evidence Against: * Methane Increasing Levels of atmospheric methane, a powerful greenhouse gas, have risen 145% in the last 100 years. Methane is derived from sources such as rice paddies, bovine flatulence, bacteria in bogs and fossil fuel production. * Peculiar Weather Recently, young people in Vietnam noticed strange white stuff covering the fields. They had never seen snow before. It is the coldest spell in the country for 20 years. * Carbon Dioxide Increasing in Atmosphere The atmospheric levels of the greenhouse gas carbon dioxide, have increased since pre-industrial times from 280 part per million (ppm) to 360 ppm, a 30% increase. Carbon dioxide concentrations in the atmosphere are the highest in 160,000 years. ...read more.


Kenya (In Kenya) has lost 40% of its mass during the period 1963-1987 or at a much faster clip than during 1899-1963. - Greenland's glaciers are moving more rapidly to the sea, caused, perhaps, by melt water lubricating the base of the glaciers. * Climatic Forcings Many scientists have suggested that other factors are responsible for rising temperatures, such as natural changes in the number and size of volcanic eruptions or an increase in the sun's output. Such phenomena are referred to as climate forcings. This would mean that humans are not responsible for the increase in temperature over the last 140 years. * Tropical Diseases Spreading A recent study by New Zealand doctors, researchers at the Wellington School of Medicine's public health department said outbreaks o f dengue fever in South Pacific islands are directly related to global warming. ...read more.


Cold periods have had the opposite effect. * Forest Fires In Australia, where it is summer, forest fires are the worst for 50 years. 400 homes have been destroyed, and the fires almost reached the capital. * Animal Behaviour Many butterflies and birds are moving to the colder north to escape rising temperatures. The golden toad in Costa Rica has become extinct because its habitat got too warm. * Melting Arctic Sea Ice The Arctic, with an area about the size of the United States, is seeing average temperatures similar to the Antarctic, almost 5 degrees Fahrenheit warmer than the planet as a whole. * Early Starters Flowers are blooming, frogs are mating, and birds are migrating - 2.3 days earlier on average each decade. These changes are what you would expect if spring temperatures were rising. African Floods In March 2000, Mozambique's floods caused 180,000 people to flee. Many died. Warmer temperatures cause more evaporation, and result in heavier rains. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Physical Geography 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 GCSE Physical Geography essays

  1. What Is a Glacier? Types Of Glaciers

    all that is left is a steep, pointed peak with sharp, ridge like aretes leading up to the top. Fjords are long, narrow coastal valleys that were originally carved out by glaciers. They have steep sides and rounded bottoms. Because of glacial erosion on the below sea level land surface, when glaciers finally disappear, sea water covers the valley floor.

  2. Global Warming Newspaper

    continuing to put legislation and policies in place to meet their commitments; a carbon market has been created; and more and more businesses are making the investment decisions needed for a climate-friendly future. The Protocol provides the essential architecture for any new international agreement or set of agreements on climate change.

  1. Is global warming human induced or is it a natural phenomenon?

    Now I want to look at the arguments from the people who think global warming is fully, if not, mostly natural. Firstly, many of the leading scientists believe that the gases we are emitting are not enough to cause climate change.

  2. The structure of the Earth and the impact of volcanic eruptions.

    Then the pressure would be released in a sudden release of the plate which causes an earthquake. Earthquake - MEDC Kobe, Japan: When - 17th January 1995 Where - Southern Japan Why - The Philippines Plate shifted beneath the Eurasian plate, and the collisions led to an earthquake on the Nojima fault.

  1. Comparison between Cambridge park and candie gardens

    The second chart indicates traffic flow at 5:30 pm, I chose this time as it was a very typical rush hour as most people finish work then. The map below indicates where the experiment took place, the crossroads are marked with a red marker.

  2. Global warming

    This would mean that London, for example, would be submerged. Even if Greenland's ice sheet was to melt partially and the sea level was to rise just one metre, countries such as Bangladesh and the Maldives would be substantially submerged.

  1. An Essay Upon Global Warming

    The governments of certain LEDCs, such as India and China, claim that is unfair that they should not be allowed to develop just as the MEDCs did, but there is also resistance from MEDCs. There are three main reasons for this: 1.

  2. Plannng an expedition to an extreme environment.Svalbard. Glaciers as an attraction and under threat.

    2: The ice moves at the rate of 241 metres every year from 1983 to 2003. The map shows the glacier melted the most in 1983 to 2003, the gap between 1900 to 1916 is smaller therefore I can say that less ice receded then.

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