Many people are optimistic about the 21st century and expect scientists to make positive changes to the world. TO what extent do you agree or disagree with their optimism? What changes do you like to see in your new century?

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For the time being, alterations made by
scientists
Use synonyms
of the 21st century have never failed to provoke controversial debates among people. Some claim that we should be positive regarding the favourable modifications in science to the planet. I would contend that their optimistic statements are completely reasonable and some possible variations have kindled my interest. Obviously, the 21st century has positively marked a significant milestone in aspects related to science, especially healthcare because of the innovative medicines. Specifically, the COVID-19 pandemic has widely spread all over the world, challenging authorities to take prompt measures in order to control the breakdown of the casualties.
However
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, an eclectic mix of chemists as well as governments has made a joint effort in order to perform a steady stream of scientific research with a view to coming up with a cure-all remedy to
this
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serious problem.
For instance
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, by allocating a colossal cost in inventing a wealth of different vaccines
such
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as Pfizer or AstraZeneca for the law-abiding citizens to utilize, a high death toll resulting from the Covid-19 pandemic has deteriorated.
Therefore
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, it is understandable for settlers to hold a cheerful perspective of alterations made by
scientists
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in the upcoming decades. Despite the aforementioned developments in science, there is a wide range of pressing issues regarding the environment that ought to be resolved utterly to reverse the damage done to the planet.
Although
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researchers from internationally acclaimed medical companies have conducted plenty of scientific research in developing waste treatment systems, they
also
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need to create environmentally-friendly technology so as to alleviate environmental problems
such
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as the inexorable increase in global temperature and the deterioration in air quality. To be specific, by using renewable energy
instead
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of fossil fuels, people would significantly reduce carbon footprints, and
this
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would have a positive environmental impact on our entire planet.
Consequently
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, it is compulsory that
scientists
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implement a variety of scientific investigations to curb environmental issues. In conclusion, even though it is reasonable for dwellers to believe in advantageous modifications made by
scientists
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in the healthcare system of the 21st century, researchers should put efforts into creating green technology with a view to alleviating the severe environmental problems.
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Include an introduction and conclusion

A conclusion is essential for IELTS writing task 2. It is more important than most people realise. You will be penalised for missing a conclusion in your IELTS essay.

The easiest paragraph to write in an essay is the conclusion paragraph. This is because the paragraph mostly contains information that has already been presented in the essay – it is just the repetition of some information written in the introduction paragraph and supporting paragraphs.

The conclusion paragraph only has 3 sentences:

  • Summary
  • Restatement of thesis
  • Prediction or recommendation

Example:

To summarize, a robotic teacher does not have the necessary disciple to properly give instructions to students and actually works to retard the ability of a student to comprehend new lessons. Therefore, it is clear that the idea of running a classroom completely by a machine cannot be supported. After thorough analysis on this subject, it is predicted that the adverse effects of the debate over technology-driven teaching will always be greater than the positive effects, and because of this, classroom teachers will never be substituted for technology.

Start your conclusion with a linking phrase. Here are some examples:

  • In conclusion
  • To conclude
  • To summarize
  • Finally
  • In a nutshell
  • In general

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Topic Vocabulary:
  • Breakthroughs
  • Incurable diseases
  • Rapid development
  • Vaccines
  • Technological advancements
  • Automation
  • Efficiency
  • Cautious optimism
  • Ethical issues
  • Artificial intelligence
  • Renewable energy
  • Climate change
  • Collaboration
  • Global issues
  • Wealth disparity
  • Innovative
  • Economic policies
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