Intensive Care in a Changing Climate

While awareness of sustainability is growing, many clinicians still wonder where the environmental impact of intensive care actually comes from.

In this segment, prof Forbes McGain explores the main sources of carbon emissions and waste in the ICU—from energy-intensive equipment and single-use consumables to pharmaceuticals, diagnostics, and supply chains. Which aspects of intensive care contribute most to the carbon footprint, and where can meaningful reductions be achieved?

We also examine real-world examples of sustainability projects that have successfully reduced waste and emissions in healthcare settings. What actions have proven effective, and what lessons can be applied across different ICUs?

Perhaps most importantly, we address a common concern: will greener practices compromise patient care? Can sustainability initiatives improve efficiency without affecting outcomes, or are there trade-offs that healthcare professionals need to acknowledge?

Finally, we confront some of the uncomfortable truths surrounding environmental change. What changes will require us to rethink long-established practices? And how can the intensive care community balance its commitment to delivering the best possible care today while protecting the health of future generations?

Understanding the problem is only the first step. Real change happens when ideas become actions.

Professor Pedro Povoa shares his experience leading sustainability initiatives within his university hospital. Across the world, more hospitals are creating "green teams"—multidisciplinary groups dedicated to reducing waste, improving resource use, and embedding sustainability into everyday practice.

What does a successful green team look like? Who should be involved? Can environmental initiatives coexist with excellent patient care? And where should ICUs begin if they want to start their own sustainability journey?

Through practical examples and lessons learned, Prof Povoa demonstrates that meaningful change often starts with small, achievable steps.