Preview

Four Corners: Global Dimming

Good Essays
Open Document
Open Document
1008 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Four Corners: Global Dimming
Questions to answer from video Four Corners: Global Dimming

• How does the film start? The film starts by talking about the green house effect and the natural disasters and also the terrorist attacks aftermath.

• Who was Gerald Stanhill? – What was his occupation? – Why was he measuring solar radiation in the 1950s? – In which country did he take his measurements? – What did he find 20 years later? – Did anyone believe him? He is a English immigrant, a trained biologist. -Gerry got a job helping to design irrigation schemes. His task was to measure how strongly the sun shone over Israel. -Because there was a staggering 22% drop in the sunlight, and that really amazed him. A 22% drop in solar energy was simply massive. If it was true surely Israelis should be
…show more content…

In the polluted air billions of man-made particles provided ten times as many sites around which water droplets could form. So polluted clouds contained many more water droplets, each one far smaller than it would be naturally. Many small droplets reflect more light than fewer big ones. So the polluted clouds were reflecting more light back into space, preventing the heat of the sun getting through. This was the cause of Global Dimming.
• Why is global dimming thought to be linked to drought in the Sahel?
The Sahel's lifeblood has always been a seasonal monsoon. For most of the year it is completely dry. But every summer, the heat of the sun warms the oceans north of the equator. This draws the rain belt that forms over the equator northwards, bringing rain to the Sahel.
Polluted clouds stopped the heat of the sun getting through. That heat was needed to draw the tropical rains northwards. So the life giving rain belt never made it to the Sahel.
Global dimming could have been behind this drought.

• What is the most convincing evidence of the effect of particles on reducing


You May Also Find These Documents Helpful

  • Good Essays

    Which of the following areas is characterized by rain throughout the year and is associated with tropical rain forests?…

    • 1102 Words
    • 5 Pages
    Good Essays
  • Better Essays

    GKE 1 Task 1

    • 1001 Words
    • 5 Pages

    The location of the river added convenience, which aided agricultural abilities helping to boost civilization. Farmers used the water for irrigation since most of Egypt is dry. During the long rainy season, the Nile would flood. When the flood occurred it would drop deposits of silt, a rich soil ideal for growing crops. The farmers would then spend long, laborious hours cultivating and preparing the land for planting. They also spent time making dikes and ditches to retain the water for irrigation uses throughout the rest of the year. This allowed for the harvesting of abundant crops.…

    • 1001 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    John Harrison Quiz

    • 366 Words
    • 2 Pages

    C) He made a clock that would help to solve the longitude problem but it was never tested.…

    • 366 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Geography: Guided Reading

    • 2177 Words
    • 9 Pages

    10. Indus River - is a major river which flows through Pakistan. It also has courses through western Tibet (in China) and Northern India.…

    • 2177 Words
    • 9 Pages
    Good Essays
  • Satisfactory Essays

    The River Nile flooded every year between June and September, in a season the Egyptians called akhet. This fact is supported in Document B which states “waters receded but Nile high enough to fill irrigation canals; crops planted and tended”. Melting snow and heavy rains In the Ethiopian Mountains sent water causing the banks to overflow. The fresh water, minerals, and silt turned the land black, which allowed the farmers to harvest crops.…

    • 298 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    It seemed like it was something out of a movie but on that dark day on September 11 lives were lost when the twin towers came down. The lasting effect of that day brought a change in…

    • 629 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The movie is truly an eye opener. It tells us that while we have not yet suffered the same fate as those in the movie, we can still try to prevent and hopefully remedy the situation. We can start with ourselves and maybe move on to the larger communities. Big businesses play a big role in our environment. If they were to pollute, expect pollution to come out in huge amounts. But if they were to become responsible and take the fate of the world into account, if they were to do their best to fight pollution and go green, we may actually see concrete…

    • 364 Words
    • 2 Pages
    Good Essays
  • Good Essays

    The movie starts with a Dr. Michael Burry, who decodes the housing market in the USA to find out that there is a bubble in the market and anticipates the market to crash in the second quarter of 2007. Not only that, he also foresees a way to gain profit form this event by shorting housing bonds and buys credit default swaps from several banks. While Burry…

    • 717 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    How the World Was Made

    • 458 Words
    • 2 Pages

    As it dried, it grew dark so they got the sun and set in a track to go around everyday at a specific time. They took the sun, but it was really hot so they pushed it a little further until it was the right temperature for them to look around.…

    • 458 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    On my adventurous Journey around the world, I took a visit to Sub-Saharan Africa. The first country I came to was Somalia.While staying in Somalia, there is mostly plateaus, plains and highlands. Far north are the Karkaar Mountains, near the Gulf of Aden coastline. The whole country is as well slightly smaller if you compare it to Texas. Also, the terrain is mostly flat, and includes deserts. In this country , the climate varies throughout some months such as in December to January it is moderate temperature in the North and hot in the South. Then, temperatures begin to change in May to October and being hot and have some rainfall in the South and experiencing a Southwest Monsoon in the North which includes dry temperatures and chances of increased…

    • 468 Words
    • 2 Pages
    Good Essays
  • Good Essays

    It is said that Mother nature has given many responsibilities to the trees. Without the trees in the rainforest, it could have global implications not just on life but the quality of life to all living things. Trees in the rainforest improve the quality of the oxygen that all creatures breathe by trapping carbon and other particles produced by pollution. Trees also determine rainfall and replenish the atmosphere. As more water is able to be put back in the atmosphere, clouds form and provide another way to block out the sun’s heat. Trees are what cool and regulate the earth’s climate in conjunction with other such valuable services as preventing erosion, landslides, and making the most infertile soil rich with life (Connor, 2009).…

    • 975 Words
    • 4 Pages
    Good Essays
  • Better Essays

    An excellent example of the water cycle is the Amazon Rainforest. While some locations of the Amazon rainforest close to Iquitos, Peru do not appear to have a very articulate wet and dry season, most locations of the rainforest do. “Dry seasons are usually defined as a month where there is fewer than four inches of rainfall in a certain month”(Kricher, 1997). The rainy season changes throughout the tropics with respect to the month in which begins, the period of the season and the intensity. During the rainy season the days are usually cloudy with ceasing rain throughout the day, the heaviest rains, happens in the late afternoons and evenings. In the dry season the sun can shine for up to ten hours a day, even though there is sometimes a shower in the afternoon. “Rainforests take in so much of the earth’s carbon dioxide that scientists call them carbon sinks, and the biggest carbon sink in the world today is the Amazon Basin Rainforest Ecosystem (ABRE), and deforestation is changing the carbon dioxide absorbing capabilities of the ABRE” ("Project Amazonia: Characterization - Abiotic - Nutrient Cycles", 2002). These growing temperatures have a broad effect on the…

    • 1317 Words
    • 6 Pages
    Better Essays
  • Better Essays

    What is Light Pollution?

    • 671 Words
    • 3 Pages

    Light pollution occurs when outdoor lights are aimed upwards and sideways; the light scatters in the atmosphere and reflects back to the ground. As a result the sky glows. Particles responsible for air pollution, in the atmosphere, emphasize light pollution by enhancing the amount of light scatter.…

    • 671 Words
    • 3 Pages
    Better Essays
  • Good Essays

    The rainy season is the most important and useful season in our country. Agriculture which is the life blood of our economy depends on this rain.…

    • 830 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Environmental Crisis

    • 1565 Words
    • 7 Pages

    The Sahel is a strip of land that extends for more than 6000 kilometres across…

    • 1565 Words
    • 7 Pages
    Good Essays

Related Topics