21.   Their purpose is to encourage countries to ratify the Kyoto protocol on reducing carbon emissions.

22.   These will all reduce emissions from fossil fuels and so help combat global warming and acid deposition.

23.   This crust prevents odours escaping and hence reduces odour emission.

24.   The talks will centre on the problem of reducing emissions of greenhouse gases.

25.   The new plan focused on reducing carbon dioxide emissions by cutting energy consumption.

26.   Reducing emissions not only makes good sense environmentally, it can also yield cost savings.

27.   In the USA, the Clean Air Act requires modified motor fuels, which may help reduce carbon monoxide emissions from cars.

28.   The paint industry, breweries, aerosol manufacturers, and even bakeries would have to install equipment to reduce noxious emissions.

29.   Compliance with other countries in reducing emissions of greenhouse gases is also urged.