Although it is widely held that infections and eating difficulties are hallmarks of advanced dementia,25 there are few prospective data on the incidence of these complications. Over the course of 18 months, more than half of the residents in our study had infectious episodes, and 86% had eating problems.
So 10 billion people is the uppermost population limit where food is concerned. Because it's extremely unlikely that everyone will agree to stop eating meat, Wilson thinks the maximum carrying capacity of the Earth based on food resources will most likely fall short of 10 billion.
The IEA notes that since 2012, China has been the country with the largest installed power capacity, and it has increased this by 14% since then to reach 1,245 GWe in 2014, or 21% of global capacity, slightly ahead of the United States (20%).