Domestic waste

The category /home/waste contains CO₂ emissions factors associated with disposal of a variety of household waste products and disposal methods.

The data incorporates CO₂ emissions associated with treating and transporting of waste as well as the emissions which are potentially mitigated where future resource and energy consumption is reduced (e.g. recycling). Depending on the disposal method selected, therefore, the disposal of some waste types results in a negative value for CO₂ emissions within CarbonKit - these values represent CO₂ emissions saved. All data represents the aggregate global warming effect of six greenhouse gases (CO₂, CH4, N2O, PFC's, HFC's, CFC's) expressed as CO₂ equivalents (CO₂e).

To use this category select the type of waste using drill downs, then enter the quantity of waste and a disposal method. If no disposal method is entered CarbonKit will return a value associated with landfill disposal.

Disposal methods should be selected and entered as follows:

• landfill: this calculates the CO₂e emissions associated with the disposal of waste in landfill sites.

• recycling: this calculates the net CO₂e emitted in the recycling of waste material (including potential emissions savings where future production is mitigated).

• thermal: this calculates the CO₂e emitted in the combustion of waste products.

• embodied: these data represent the total CO₂e emissions which are embodied within specific waste materials. These values therefore reflect the unit CO₂ emissions of future production for a given material and can be considered to represent the CO₂ emissions which are saved by choosing not to dispose of a particular waste product.

This data is sourced from the Waste Strategy for England 2007 Annex A (DEFRA). Users should note that, while the absolute values are the same, the signs (+/-) of values in CarbonKit are the opposite of those within the source document. Thus, a net CO₂e emission is positive (+) within CarbonKit (in line with all other categories) while a CO₂e saving is negative (-).