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seat on the street 10

Welcome to Seat on the Street.

PR: Hello

Please identify yourself

PR: I’m Pam Rutherford, BBC Science Reporter

Q1: Explain what we mean by pollution?

PR: Pollution is when foreign substances or contaminates are introduced into the natural environment or ecosystem. these can be chemicals or gasses in the air, ground, or water. But it can also be in the form of energies so light, heat and noise are all problem polluters.

Q2: Is all pollution caused by human beings?

PR: Most pollution is manmade but not all. Volcanoes produce vast amounts of the greenhouse gas carbon dioxide. They spew out 100 million tonnes of the gas every year. That’s still only one percent of the total emissions produced by man.

Q3: What different kinds of pollution are there?

PR: There are many different kinds of pollution. Air pollution from cars is the one you most commonly think of but farming and industry can also cause water pollution where their waste products end up in rivers and waterways. Big airports can cause noise pollution and also big cities can cause light pollution making it harder for astronomers to see distant stars. Radioactivity is another source of pollution which can have long-term effects.

Q4: Has there always been pollution?

PR: Pollution has been more significant in the last 150 years. This is because of the industrial revolution, the invention of pesticides and the development of nuclear science. But archeologists who found soot on the rooves of caves from thousands of years ago believe this is evidence of pollution from indoor cooking.

Q5: Is it worse in some parts of the world?

PR: The most polluted places are in the developing world. This is because in wealthier countries there are more political, economic and legal driving forces to discourage polluters. But wealthier countries are a big contributor to global pollution. The United States, for example, produces a quarter of the world’s entire waste.

Thank you for taking part in Seat on the Street

PR: Thank you