Obesity is not only a health issue but also an environmental one. According to a recent study by The Obesity Society, people who are overweight produce significantly higher CO2 emissions than those who are of normal weight. This is due to their higher metabolic rate, which is largely dependent on body weight. In addition, the production and distribution of food and drinks for overweight individuals also contribute to increased CO2 emissions. The transportation of heavier individuals also leads to increased fossil fuel consumption, resulting in additional CO2 emissions.
The study found that global obesity causes an additional 700 megatons of CO2 emissions annually, which is approximately 1.6% of all anthropogenic emissions. This exacerbates the effects of climate change. The authors of the study emphasize that these findings should not lead to further stigmatization of overweight individuals, who are already subject to negative attitudes and discrimination. However, the study highlights the high cost of untreated obesity, not only to the health of affected individuals but also to the environment.
To assess the impact of obesity on the environment, the researchers used standardized definitions of obesity (a body mass index of 30 or higher) and normal weight (a body mass index below 25). They calculated the additional emissions of greenhouse gases (carbon dioxide, methane, and nitrous oxide) resulting from the increased oxidative metabolism, food production and consumption, and increased fuel consumption for transportation of overweight individuals. Compared to a person of normal weight, the researchers found that a person with obesity produces an additional 81 kg of CO2 per year due to increased metabolism, an additional 593 kg of CO2 per year due to increased food and drink consumption, and an additional 476 kg of CO2 per year due to auto and air travel. Overall, obesity is associated with approximately 20% higher greenhouse gas emissions than people of normal weight.
In conclusion, the study highlights the need for effective treatment of obesity, not only for the health of individuals but also for the environment. It is important to address this issue without further stigmatizing overweight individuals. The findings of the study should be used to inform policies and interventions aimed at reducing the environmental impact of obesity.
