As our global population rises; so does our appetite for protein. Our meat consumption habits take a serious toll on the environment, causing environmental problems. Of the issues listed; which one is not of great concern?

Environmental impacts of increased protein consumption

Explanation:

Protein is a major macronutrient that helps in body building and present more in animal sources. Hence increase in population raises the demand for more protein based foods. So, there is a huge increase in animal farming.  

Animal farming directly impacts the environment as it is one of the major causes of global warming and environmental pollution.

Grazing is a common feeding method for farming animals and this reduces the greenery of vast lands which can store more carbon. Thereby these animals affect the carbon footprint.

Next, farm animals release a lot of methane in their waste products. Methane is one of the major greenhouse gases and increases global warming.  

Moreover, animal waste effluents pollute the surrounding natural land and water sources with contaminants including harmful pathogens.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".