asiign 90

First part you have to answer each question and each answer should be about one page.

Answer both of the following questions. You are not required to write a formal essay for each one, but please ensure that your meaning and interpretation (and writing!) are clear. Each question is worth a possible FIVE marks.

Questions

1

. Throughout this course, we have looked at a number of turning points or thresholds in the historical development of humanity. These include (a) our emergence as a separate species of hominid 400,000-250,000 years ago; (b) our departure from Africa and subsequent migration across the world c. 50,000-10,000 years ago; (c) the shift from a nomadic, hunter-gatherer form of subsistence to a more sedentary, agricultural base 10,000 years ago; (d) the rise of larger, more complex agrarian civilizations 5000 years ago; (e) the global impact of the so-called Columbian Exchange 500 years ago; and (f) the process of industrialization that began c. 250 years ago.

Over the past four weeks, I have argued that the 20th century marked a similar threshold or turning point in the evolution of humanity, possibly the most important yet. With specific and detailed reference to at least FIVE of the following terms or concepts, explain why the 20th century should be regarded as
either
(a) an age like no other, in which the dominant environmental concerns and challenges were unprecedented or (b) a continuation and extension of problems that have been evident over the past 250 years.

1. Population 6. Pollution

2. Urbanization 7. Fossil fuel

3. Disease 8. Climate change

4. Inequality of wealth 9. Energy consumption

5. Longevity (lifespan) 10. Slums

2. What do you understand by the phrase ‘tipping point’? Give THREE examples of possible environmental tipping points that are likely to occur in the 21st century. Finally, briefly giving reasons, in what THREE ways is the global environment of 2100 likely to be different to that of 2000?

Second part these three questions have three examples of their answers try to answer each question and you can use the answer provided or you can rephrase it. The answers are provided to understand what is required exactly and just say your opinion.

1.

 

To what extent and in what ways was it inevitable that the 20th century would result in record levels of pollution?

 

Due to population growth I think it only makes sense that pollution would raise especially when our population has grown more than 4 billion people since 1950 and still continues to grow. I think another huge impact is that we have gone from a rural to more of an urban society. Meaning less people are focused on agriculture and on manufacturing, which creates more pollution with things like factories. As well as the invention of automobiles and our reliance on them to get us everywhere has added to pollution. Since 1950 human economic activity has raised by 8 times, which was once impossible. With the help of technology we still may be able to protect our environment in the future.

 

2.
 
What, in your opinion, is the single greatest threat of human-made pollution facing us in the 21st century?

 

After watching the video in class last week, I feel that plastic has become the biggest human-made pollutant in the 21st century.

 

3.
 
If global population growth and economic growth are set to continue at least until 2050, what — in your opinion — is one way that overall pollution levels might still be reduced, even taking into account Sach’s six conditions?

 

I think that technology shall play a big role in reducing pollution, we recently have been trying to become more environmentally friendly by recycling, putting up solar panels, wind turbines, electric cars. And these are just a few examples. I feel if we continue to make changes like this and further develop technology we will be able to decrease the amount of pollution caused.

1

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