Life cycle assessment (LCA)
Compilation and evaluation of the inputs, outputs and the potential environmental impacts of a product system throughout its life cycle

Carbon Dioxide (CO2)
A naturally occurring chemical compound at standard temperature and pressure and exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039 per cent by volume. As part of the carbon cycle, plants, algae, and cyanobacteria use light energy to photosynthesize carbohydrate from carbon dioxide and water, with oxygen produced as a waste product. 

Carbon dioxide equivalent (CO2e)
Calculated mass for comparing the radiative forcing of a greenhouse gas to that of carbon dioxide. The carbon dioxide equivalent is calculated by multiplying the mass of a given greenhouse gas by its global warming potential 

Global warming potential (GWP) 
Characterization factor describing the mass of carbon dioxide that has the same accumulated radiative forcing over a given period of time as one mass unit of a given greenhouse gas 

Greenhouse gas (GHG) 
Gases constituent of the atmosphere, both natural and anthropogenic, that absorbs and emit radiation at specific wavelengths within the spectrum of infrared radiation emitted by the earth’s surface, the atmosphere, and cloud. Water vapour and ozone are anthropogenic as well as natural greenhouse gases but are not included as recognized greenhouse gases due to difficulties, in most cases, in isolating the human-included component of global warming attributable to their presence in the atmosphere