Chapter 6: Technology, Energy and the Environemt
One consequence of industrialization and technological development
Is the destruction of the natural environment!
-- A ruined environment is its legacy!
-- It will sorsen as more nations use more industrial technologies
The United States:
5% of the world’s population used 30% of
the world’s resources !!!
-- The general trend is inescapable!
-- The use of coal, gas and oil by developing countries will TRIPLE
by the year 2020, intensifying the assault on the environment!
Two categories: pollution and depletion
-- Pollution: addition of harmful substances, resulting in a) polluted
skies, B) acid rain, C) contaminated water, D) possibly climate
-- Depletion: A) permanent loss of resources, B) de-forestation,
C) extinction of plant and animal species.
-- Sometimes the two go together: for example, in the mining of coal –
strip mining, then fouling the air and water with pollutants.
BUT … Technology can be part of the solution!
-- Fossil fuels (petroleum, coal and natural gas) gave the world great
energy, but polluted the environment with carbon compounds,
sulfur and oxides of nitrogen.
-- In 1995, 6,000,000,000 tons dumped into atmosphere – ONE TON
FOR EVERY PERSON ON EARTH!
-- Smog over our cities.
What’s more frightening is the creation of Carbon
Dioxide (CO2) !
This occurs when the carbon in gasoline, coal
or natural gas unites with the oxygen in the air during the process
BURNING ONE POUND OF GALOLINE CREATES THREE
POUNDS OF CO2!
-- CO2 is a clear, odorless gas; it itself it is not a threat; it is found in
carbonated drinks, BUT … along with the CO2, ozone, methane,
chlorofluocarbons and oxides of nitrogen cover the earth!
actually create a
greenhouse effect, trapping heat.
WE ARE FOULING OUR NEST!
-- It is suspected that our climate IS and WILL BE affected.
Scientists say thaqt the earth is 0.6 degrees centigrade
warmer than 100 years ago!
Man is responsible.
-- In some places they’re experiencing far warmer temperatures than
Dallas has 100 days of 90 degress plus!
If the trend
continues, Dallas could get 162 days!
-- It would influence air currents, rainfall patterns, leaving some areas
wetter, others drier.
Major crop areas are/could be affected.