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

Green House Effect Dinosaur Extinction case Study

Extracts from this document...


The Greenhouse Effect Another popular theory the greenhouse effect theory first proposed by Dewey McLean. He and many others believed that a intense period of volcanic eruption and small asteroid impact was the cause however Mclean believed this was a minor event and what followed was the result of the extinction of the dinosaurs. Mclean says that the asteroid that formed the Chicxulub crater happed 300,000 years before the death of the dinosaurs. According to Mclean the fateful dinosaur killer happed somewhere else on earth and is still yet to be discovered. ...read more.


They also contributed to erosion and the creation of soil. Also, since plants are stationary, they determine where plant-eating animals live. An example of a common plant would be a 'Horsetail' plant show on the left. If plants such as this on died then there would be no food to keep the Herbivores alive such as triceratops (Primary consumer). With dinosaurs such as these ones dieing their would have been no food for The Carnivores Like the T-Rex (Secondary Consumer) however in McLean's Opinion this was a minor incident he believes this was just the beginning at it was what followed this event that that ...read more.


Only a few degrees increase in the temperature can affect the fertility of an animal by affecting their ability to produce fertile sperm. Mclean Believes that this was the deciding factor that killed of that dinosaurs and not the asteroid. Dewey Mclean Dewey Mclean was famous scientist born is San Antonio Texas he later mover to California like Alvarez to study his profession Geology. He did not win a Noble prize but Won many other reward for his discovery's in both Dinosaurs and Global Warming. He linked to two together to make his theory. ...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 The Earth and Beyond 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 The Earth and Beyond essays

  1. Peer reviewed

    Global Warming - Is it man Made?

    Doubling the price of gasoline over the last few years has caused food costs to shoot up; fishermen and truckers to be put out of business; and many low income people to suffer. Now, Congress is debating to do the same thing to electricity prices.

  2. Science Case Study - Dinosaurs

    This extinction killed the dinosaurs that had been roaming the world for over 150 million years. What could have caused this mass extinction? What are the main theories of how and what killed the dinosaurs? There are two main theories of what natural changes in the environment that could have

  1. The Extinction of the Dinosaurs - reviewing 3 theories.

    as osmium, gold, platinum, nickel, cobalt, palladium and idium in the deep layer of rock, where the asteroid is thought to have landed. These elements are rarely found on Earth, but are often found in asteroids. This evidence suggests that an asteroid collided with Earth, supporting the asteroid impact theory.

  2. Free essay

    How did the Dinosaurs become Extinct?

    The Deccan Trapps were produced over a span of some 500,000 years by basaltic fissure flows, very similar to the eruptions that regularly occur in Iceland. Basalt has little trapped gas in it, and tends to erupt non-explosively; rather flowing smoothly, and sometimes nearly continuously, much like the current round of eruptions in Kilauea, Hawaii.

  1. Physics crater investigation

    Method: 1. I took one small marble, which was cleaned and analysed before the experiment to check for any faults. 2. I took a small tin of sand roughly 4x7 centimetres and checked for any faults or inaccuracies. 3. I then took the support stand, which then held the meter

  2. When one begins to study satellites he or she is bound to find out ...

    Solar energy comes from thermonuclear fusion reactions which occur in the sun. There are many different types of collectors which gather the solar energy. Photoelectric panels have been used to give power to satellites. By using photoelectric cells, or solar cells, solar energy can be changed into electricity.

  1. The Green House Effect

    Thus from this photosynthesis a lot of the CO2 was removed and oxygen was added.

  2. The greenhouse effect

    For example, many of the models cannot properly simulated the negative effects that increased cloud cover would have on the radiation balance of a warmer Earth. Increasing the Earth's temperature would cause the oceans to evaporate greater amounts of water, causing the atmosphere to become cloudier.

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