Grammar in Focus (Units 1-5) Complete with the correct form of the word in brackets or choose the correct word. "Carbon neutral' is the word which 1)(give) to a person or business that produces zero carbon dioxide. Carbon dioxide is one of the greenhouse gases and one of the 2)(big) contributors to global warming. Scientists 3) (record) carbon dioxide levels rising in the atmosphere 4) decades. Unless the production of greenhouse gases is brought under control 5) governments,we 6)(not stop) global warming or prevent the ice caps from 7)(melt). Those who are carbon neutral are not solving the problem, but at least they are not adding to it 8)(they).​

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