In 2015, food-system emissions amounted to 18 Gt CO2 equivalent per year globally, representing 34% of total GHG emissions. The largest contribution came from agriculture and land use/land-use change activities (71%), with the remaining were from supply chain activities: retail, transport, consumption, fuel production, waste management, industrial processes and packaging.
That’s fair the numbers indeed don’t add up, my graphic uses CO2 while nature.com uses:
“estimating greenhouse gas (GHG; CO2, CH4, N2O, fluorinated gases) emissions” comparing apples to oranges.
But even in the nature.com study my original stance still stands, eating meat does not contribute to 2/3 of emissions. Yes it is an important factor but so is insulation & transportation.
Food = total GHG emissions * 0.34
Agriculture = Food * 0.71
(supply chain activities: retail, transport, consumption, fuel production, waste management, industrial processes and packaging) = Food * 0.29
Learn to read
I know how to: .71 * 18 = 12.78 Gt, which is more than double what your graph ascribes to agriculture.
Also, there’s no need to be rude, even if I had been wrong.
That’s fair the numbers indeed don’t add up, my graphic uses CO2 while nature.com uses: “estimating greenhouse gas (GHG; CO2, CH4, N2O, fluorinated gases) emissions” comparing apples to oranges.
But even in the nature.com study my original stance still stands, eating meat does not contribute to 2/3 of emissions. Yes it is an important factor but so is insulation & transportation.
0.34 * 0.71 ≠ 0.66