It’s also worth putting the amount of carbon involved in having a Christmas tree in context. The Carbon Trust estimates that a 2m-tall (6.6ft) Christmas tree burnt after use emits only 3.5kg carbon dioxide equivalent (CO2e) – roughly 0.2% of the emissions from a return flight from London to New York. A tree of the same size that ends up in landfill has a carbon footprint of 16kg of CO2e – equivalent to 1% of that return flight, or roughly two hamburgers.
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