Some technological advances can have an enormous social impact. Let’s debate: “Do you think...
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Transcript of Some technological advances can have an enormous social impact. Let’s debate: “Do you think...
Some technological advances can have an enormous social impact.
Let’s debate:
“Do you think engineers would be able to do their work as quickly and efficiently if they didn’t have computer graphic tools?”
Introduction
Humans use technology as a tool.
However, many of these advances also cause problems.
Introduction
COLEGIO DE FOMENTOMONTEAGUDO-NELVA
CENTRO BILINGÜE
Mobile phones: use
them too much,
distracting or annoyingComputer
games: extreme
violence or discrimination
Genetical modified foods can have an
impact on health
Computer piracy
Do you know more?
Human evolution has led to an unstoppable environmental degradation.
All technological activity will alter the environment to some extent.
After the Industrial Revolution
we began to extract natural
resources and fuels very quickly.
Introduction
COLEGIO DE FOMENTOMONTEAGUDO-NELVA
CENTRO BILINGÜE
Three major problems
COLEGIO DE FOMENTOMONTEAGUDO-NELVA
CENTRO BILINGÜE
1. Pollution and waste.
2. Depletion of energy resources.
3. Disappearance of plant and animal species and habitats.SOLUTION
S
R R R
1. Make a poster with images of forest fires, erupting volcanoes, smoking chimneys and as many other sources of pollution as you can think of.
Label each image with the pollutants it produces.
2. Write a definition of desertification with your own words. What’s the effect of desertification on the soil?
ACTIVITY
ALTERNATIVE SOURCES OF ENERGY
An energy source that can be used instead of fossil fuels
It is usually a renewable source of energy that could be used should fossil fuels run out
Why is there a need for alternative sources of energy? 90 per cent of the worlds energy supply’s come
from fossil fuels. Because they are fossil fuels they DO have a life
expectancy. Burning fossil fuels has increased atmospheric
pollution. Vehicle exhausts contribute to acid rain more so
than power stations burning coal. The carbon stored in fossil fuels is released as
carbon dioxide when they are burnt – this leads to the green house effect and global warming
So what are the alternative energy sources to fossil fuels?A. Nuclear Power: (They are trying to avoid this type, IS NOT
RENEWABLE) The nuclear power was seen as the answer. Huge
amounts of power could be produced from a small amount of uranium
However, it was not well known that it produced radioactive waste
The waste is dangerous to health and life for hundreds of years
There is no secure place for storage. Public confidence has also been shattered by the
explosion at Chernobyl in 1986
C) Wind Power: Energy from the wind.
Can be used for mechanical tasks, e.g. pumping water
Can be used for generation of electricity for direct use or storage in batteries
F) Biomass Energy: Biomass Energy is defined by any organic materials that can be burned and used as a source of fuel.