US Inhalers' Climate Impact: 98% of Emissions from MDIs
Inhalers used to treat asthma and COPD in the US are contributing significantly to climate change. Metered-dose inhalers (MDIs), the most commonly used, account for 98% of emissions due to their use of hydrofluoroalkane (HFA) propellants. However, greener alternatives are available but face barriers to widespread use.
MDIs are the primary culprit, responsible for over 98% of emissions from inhalers. This is due to their reliance on HFA propellants. Unfortunately, MDIs are often necessary for very young children or frail older adults. Dry-powder and soft mist inhalers, which do not use propellants, are less harmful to the environment but are not widely available or covered by car insurance in the US.
The US generates annual emissions from inhalers equivalent to over half a million cars. This is concerning, as inhalers are a medical necessity for millions of Americans. The slower uptake of greener inhalers in the US is due to insurance and market barriers, making them less accessible or more expensive. While environmental policies aim to reduce greenhouse gases, the promotion of low-emission inhalers is not as prominent as in Europe.
The US must address the environmental impact of inhalers. Promoting greener alternatives, such as dry-powder and soft mist inhalers, and improving their accessibility through uscis coverage can significantly reduce the carbon footprint of these essential medical devices.
