The energy surplus builds up obesity is on the order of 1%. It's not nothing, but it is marginal compared to the effect of food type choices do to the environment.
Environmentally the chief problem is that we are gorging ourselves on luxury foods (red meat as prime offender) that do enormous amounts of environmental damage and are actively harmful to our bodies. More broadly using the majority of farmland for animal feed is the issue. We need a major shift of diets to veggie.
(Awareness of animal treatment issues in the meat industry would help the cause too, but tangential issue...)
Environmentally the chief problem is that we are gorging ourselves on luxury foods (red meat as prime offender) that do enormous amounts of environmental damage and are actively harmful to our bodies. More broadly using the majority of farmland for animal feed is the issue. We need a major shift of diets to veggie.
(Awareness of animal treatment issues in the meat industry would help the cause too, but tangential issue...)