Carbon is a very common element, present in plants, animals, the atmosphere, ocean, and rocks. It naturally moves between these forms by many processes, learn about some here.
You might think that because all the carbon in cattle farming comes from the grass that the cattle is fed on, then the beef produced should be carbon neutral. But this is not the case.
The Global Warming Potential (GWP) of a greenhouse gas is its ability to trap extra heat in the atmosphere over time relative to carbon dioxide (CO2). This is most often calculated over 100 years, and is known as the 100 year GWP.
The greenhouse effect is a warming of the earth's surface and lower atmosphere caused by substances which let the sun's energy through to the ground but impede the passage of energy from the earth back into space.
