The doctrine of "first, do no harm" is the basis of the Hippocratic Oath, one of the world's oldest codes of ethics. It governs the work of physicians -- but climate and health campaigner Shweta Narayan says it should go further. In this essential talk, she highlights the interdependence of environmental and human health and emphasizes the necessity of placing health at the heart of all climate solutions.

Shweta Narayan: It's impossible to have healthy people on a sick planet

It's impossible to have healthy people on a sick planet

Air pollution causes seven million premature deaths annually—13 deaths every minute, overshadowing COVID's toll by summer 2021.

The health sector, a key player in tackling climate crises, ironically contributes to 5% of global greenhouse gas emissions.

A shift in metrics from wealth to health is urged, highlighting a global need for ethical decision-making in business and policy.