Pollution levels worldwide are growing at a faster pace than expected, and climates are changing accordingly. What do you think are the causes of pollution? What are its impacts on the environment?

It is undeniable that damage to the environment is increasing at an alarming rate that leads to changing climates. There are several causes of
this
worrying tendency and I would like to argue that it has serious negative consequences for the earth. Two of the biggest threats to the environment are toxic emissions and waste.
Firstly
, gas emissions from factories and exhaust fumes from vehicles lead to global warming, which may have a devastating effect on the planet in the future.
Secondly
, as the human population increases, we are
also
producing ever greater quantities of waste. It contaminates the earth by polluting water sources
such
as rivers and oceans. The reason why is that people do not appear fully aware of the importance of treating industrial sewage and wastewater before releasing it into the environment. Environmental effects have been disastrous. Nutrient pollution due to untreated sewage and fertilizers in runoff often leads to algal blooms in fresh and salt water. Large algal blooms deplete the dissolved oxygen in the water, leading to dead zones in aquatic systems.
Besides
, pollutants in soil put animals and plants in danger. Soil polluted by chemicals eventually becomes infertile and unable to support crops and other plant life.
This
hinders food production and can lead to
malnourishment
in native animals.
Moreover
, soil pollutions results in habitat loss, and manifold endangered species now face extinction In conclusion, it is clear to me that environmental pollution exerts negative impacts on nature and various measures can be taken to address the problem.

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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:
  • fossil fuels
  • greenhouse gas emissions
  • industrial activities
  • deforestation
  • urban expansion
  • soil pollution
  • ecosystems
  • biodiversity
  • climate change
  • extreme weather conditions
  • respiratory diseases
  • food security
  • aquatic life
  • contamination
  • crop production
  • food chain
  • health hazards
  • toxic
  • sustainability
  • conservation
  • renewable energy
  • carbon footprint
  • eco-friendly
  • sustainable development
  • recycling
  • biodegradable
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