article_snippet: In a radical move which will be studied in other European capitals like London, French Socialists said everything had to be done to make air cleaner.
article_snippet: These are created by cars and lorries, heating and heavy industry, and can potentially cause serious health problems. '
article_snippet: Paris area is confronting an increasingly troubling air pollution problem, caused by vehicles, heating and heavy industry .
article_snippet: Paris area is confronting an increasingly troubling air pollution problem, caused by vehicles, heating and heavy industry.
highlights_snippet: French Socialists said everything had to be done to make air cleaner .
  