The importance of greenhouse gases (GHG) on climate change means that, currently, there are different initiatives for their calculation, absorption of CO2 or compensation:
- Voluntary verification and Inventory of Greenhouse Gas Emissions (GHG) according to ISO 14064,
- GHG Protocol (Greenhouse Gas Protocol),
- ISO 14067 Requirements and guidelines for quantification,
- PAS 2050 Specification for the assessment of the life cycle greenhouse gas emissions of goods and services,
- International Wine Protocol,
- Among others.
Besides, there are state initiatives such as the footprint registry, compensation and CO2 absorption projects following Royal Decree 163/2014, whose objective is to promote the calculation and reduction of the carbon footprint of Spanish organisations and promote projects that improve the sink capacity of Spain.
There are even more ambitious global initiatives, such as those related to Type III Environmental Declarations (UNE-EN ISO 14025: 2010), Environmental Product Declaration (UNE-EN 15804: 2012 + A1: 2014) or Corporate Environmental Footprint and Product Environmental Footprint, where the GHG calculation is fundamental.
