Table 7: Carbon footprint of different methods.
|
Carbon footprint/eye, kgCO2e |
Study group
|
Bilateral control group |
UK Eye 2013 |
NZ NZMJ 2021 |
UK BMJ 2020 |
NZ BMJ 2020 |
|
Electricity consumption |
46,93 |
65,7 |
65,7 |
1,8 |
|
|
|
Travel |
|
|
|
|
|
|
|
Patient |
12,8 |
12,8 |
12,8 |
11,4 |
|
|
|
Personal |
3,93 |
5,5 |
5,5 |
11,4 |
|
|
|
Procurement |
|
|
|
|
|
|
|
medical equipment |
30,55 |
59,2 |
59,2 |
116,5 |
|
|
|
pharmaceuticals |
32,7 |
32,7 |
32,7 |
10,5 |
|
|
|
Waste disposal |
|
|
|
|
|
|
|
waste emissions |
1,76 |
3,4 |
3,4 |
0,2 |
|
|
|
Total |
128,67 |
181,8 |
181,8 |
151,9 |
67 |
123 |
|
Potential saving in kgCo2e-producion, kg (%) |
53,13 (29,22)
|
|
|
|
|
|
|
Carbon neutrality |
|
|
|
|
|
|
|
trees needed to implant / 1000 eyes |
171 |
242 |
|
|
|
|