prompt: Write an article explaining the causes of pollution, its consequences and how we can take steps to overcome it.
chosen.role: system
chosen.content: A chat.
chosen.role: user
chosen.content: Write an article explaining the causes of pollution, its consequences and how we can take steps to overcome it.
chosen.role: assistant
chosen.content: Since the industrial revolution, in the eighteenth century, people all over the world have been burning fossil fuels in large quantities, in power stations and factories. This has filled the air with pollutants. Some of these pollutants react with other gases in the air. Do they form dangerous chemicals?
  
  Firstly, fossil fuels (coal, oil and gas) are formed from decaying matter, compressed underground thousands of years ago. A piece of coal is, therefore, not a harmless black stone, but it contains sulphur. As sulphur burns it changes to a gas called sulphur dioxide. When this fuel is burnt in the power station, gas escapes through the chimneys into the atmosphere and harms the quality of the air. It dissolves and falls as acid rain, which harms plants, kills small mammals and wears away concrete paths and statues.
  
  As a result of driving in a vehicle powered by petrol or diesel, we are not only gaining a carbon footprint but contributing to the pollution in the environment. When petrol and air enter a car engine, a chemical reaction takes place. Exhaust fumes are produced and these emissions contain harmful chemicals, including two called nitrogen monoxide and nitrogen dioxide. If there are high levels of chemicals in the air we breathe, there will be an increase in chronic health issues, like asthma or chest infections.
  
  Therefore, we must take urgent steps to stop these pollutants from contaminating our world. One possible solution is that power stations use a process called lime (calcium oxide and water) to remove sulphur dioxide from the waste gases before they escape from the power station chimneys. Alternatively, people could consider purchasing an electric, hybrid or biodiesel car, which will be cleaner for the environment. It may be essential to use renewable resources, harnessing the power of the sun and the wind... wind farms, solar power, hydropower and geothermal energy to run our industry, power our appliances and heat our homes efficiently.
  
rejected.role: system
rejected.content: A chat.
rejected.role: user
rejected.content: Write an article explaining the causes of pollution, its consequences and how we can take steps to overcome it.
rejected.role: assistant