Greta needs to see what these two professors are doing. Fatties produce too much Co2
The total impact of obesity may be extra emissions of ~700 megatons per year of carbon-dioxide, which is about 1.6% of worldwide greenhouse gas emissions
On a global scale, obesity contributes to an extra GHG emissions of ~49 megatons per year of CO2 equivalent from oxidative metabolism due to greater metabolic demands, ~361 megatons per year of CO2eq from food production processes due to increased food intake, and ~290 megatons per year of CO2eq from automobile and air transportation due to greater body weight.
A challenge for reducing total GHG burden may be the size of the average person on the planet and the increasing number of people with excess body weight.
We used data on GHG emissions from various sources and estimated that obesity is associated with ~20% greater GHG emissions compared with the normal‐weight state. we used our estimate of the “extra” GHG emissions in CO2eq for a single person with obesity compared with a person of normal weight (see text) and inferred the total additional burden of obesity in absolute terms, based on global and regional obesity prevalence rates and the size of the population (for adults); we then calculated the total additional burden of obesity in relative terms, based on global and regional CO2 and GHG emission data.
Inasmuch as obesity is an important contributor to global GHG burden, strategies to reduce its prevalence should prioritize efforts to reduce GHG emissions.
Accordingly, reducing obesity may have considerable benefits for both public health and the environment.
Source: The Environmental Foodprint of Obesity ;
Published in Obesity (the peer-reviewed journal of The Obesity Society); vol 28 no 1 (Dec 20, 2019)
Faidon Magkos, Inge Tetens, Susanne Gjedsted Bügel, Simon Rønnow Schacht, Arne Astrup: Department of Nutrition, Exercise and Sports (NEXS), University of Copenhagen, Copenhagen, Denmark
Claus Felby: Section for Forest, Nature and Biomass, Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark
James O. Hill: Department of Nutrition Sciences, The University of Alabama at Birmingham, Birmingham, Alabama, USA
Eric Ravussin: Nutrition Obesity Research Center, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.