Definition of "megatonnes" [megatonnes]

• Plural form of megatonne. (noun)

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• "Mt CO2 eq refers to megatonnes of carbon dioxide equivalent, which is the standard international unit of measurement for reporting GHG emissions."
• "From microbes to megatonnes the chances of something cataclysmic happening are approaching statistical unity."
• "On the basis of its international bunker fuel sales, UK shipping emissions for 2006 – the last figures available – were around seven megatonnes of carbon dioxide (7 MtCO2)."