
By DAVID INTROCASO
The Problem
From an anthropocentric perspective, the climate crisis is fundamentally a threat to human health and survival.
The US healthcare industry significantly contributes to this threat. US healthcare’s greenhouse gas emissions (GHG) annually account for over 600 million metric tons of carbon dioxide equivalents or ~10% of total US annual GHG emissions.[1] If US healthcare was its own country, it would rank ~12th worldwide in carbon pollution.
Tragically, the industry and the US Department of Health and Human Services (HHS), responsible for regulating the healthcare market, remain committed to climate breakdown.
The Solution
There was a sense of relief in 2020 when the National Academy of Medicine (NAM) announced its commitment to decarbonize the industry. The NAM’s silence had been difficult to understand in part because the National Academy of Sciences had recognized climate-related public health problems as early as 1966. That year, NAM President Dr. Victor Dzau launched the Academy’s Grand Challenge on Climate and Health. The initiative was defined by a scoping paper drafted by Dr. Don Berwick, a former CMS Administrator, and two colleagues. The authors wrote, “as the climate change public health catastrophe smolders, the US Healthcare system largely fiddles.” “Rather than ‘doing no harm,’ healthcare is fueling the carbon fire.” They recommended healthcare leaders “respond effectively to climate change,” by measuring “HEALTH outcomes as much by the environmental and public health impacts of our work as by the outcomes of particular patients.” “The healthcare sector must,” they concluded, “reduce its carbon footprint by 50%, in absolute terms, by 2030 compared to a 2010 baseline.” The recommendation aligned with a United Nations’ 2018 report that concluded reducing GHG emissions by this percent would provide a 50-66% chance that global warming would be limited 1.5°C above pre-industrial levels and thereby avoid irreversible climate tipping points.
In September 2021, Dr. Dzau announced a NAM and HHS co-chaired effort titled the “Action Collaborative on Decarbonizing the US Health Sector.” HHS was prepared because per an early 2021 White House Executive Order titled, “Tackling the Climate Crisis at Home and Abroad,” HHS Secretary Xavier Becerra had announced one month prior the creation of HHS’s Office of Climate Change and Health Equity (OCCHE). During his OCCHE press conference Becerra promised, “we’re going to use every tool at our disposal” to decarbonize the healthcare industry.
Motivations
There are several reasons why decarbonizing the healthcare industry has enormous significance.
With a market cap of upwards of $7.5 trillion, US healthcare, arguably the largest industry in the world’s largest economy, is exceptionally energy intensive being resource heavy in buildings, technology and labor. Equipment, lighting, strict ventilation, plug-in loads and high-occupancy mean hospitals are ovens even when outside temperatures are below freezing.
The industry is equally energy inefficient. The ten-year running average ending in 2025 of hospitals EPA Energy Star certified was 88, or less than 1.5% of an American Hospital Association-estimated 6,100. Operating rooms are particularly energy sinks accounting for ~50% of a hospital’s GHG emissions largely because of significant use of disposable medical supplies.
High entropy healthcare was nowhere near decarbonizing much less accounting for its GHG emissions. While total US GHG emissions decreased by ~5% between 2010 and 2018, healthcare’s increased by ~6%. Research published in 2022 concluded healthcare “lags far behind in terms of [climate] sustainability, management and disclosure,” because “there is no sector-wide push from academic or industry leaders, government . . . regulators . . . or payors.”
Fossil fuel combustion exposes everyone, everywhere to innumerable and unrelenting health harms. Effectively everyone worldwide breathes substandard air accounting for upwards of ~8 million deaths annually. A study published in 2018 concluded 58% of estimated excess US deaths are due to fossil fuel use. A study published in 2022 concluded an equal percent of infectious diseases are aggravated by climate-related hazards and pathways.
GHG emissions pose a meta-problem, an underlying problem about a problem. Absent their removal, every healthcare policy effort to improve access, equity, quality, spending, value and utilization are compromised.
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