1. Healthcare sector contributes 4-5% of global CO2 emissions.
2. Earth Overshoot Day marks the date resources are depleted, occurring earlier each year.
3. EyeSustain promotes sustainability in ophthalmology.
4. Aravind Eye Care System reduces surgical emissions significantly.
5. Mahatma Eye Hospital streamlined operations to cut electricity use.
6. Global collaborations are increasing for sustainable healthcare practices.