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<p>The UK Greenhouse Gas Inventory publishes an annual assessment of greenhouse gas
emissions by source and removals. Fireworks are listed under the Waste Incineration
sector (5C) according to Intergovernmental Panel on Climate Change Common Reporting
Format sector classifications.</p><p>Greenhouse gas emissions from fireworks used
in public displays are not included in the UK Greenhouse Gas Inventory as they have
been judged not to be a significant source of greenhouse gases in the UK. It is estimated
that 10-20 thousand tonnes of fireworks are typically used in the UK each year. Even
assuming the fireworks are entirely made of carbon and entirely oxidised, the greenhouse
gas emissions from this level of activity would be less than 100kt CO<sub>2</sub>e
(carbon dioxide equivalents). This is below the threshold of significance for including
a source of greenhouse gas emissions in the inventory. The threshold was set by the
United Nations Framework Convention on Climate Change as being both less than 500kt
CO<sub>2</sub>e and 0.05% of the total national greenhouse gas emissions (which is
236kt CO<sub>2</sub>e for the UK).</p>
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