The phrase "a proportion of humanity" is correct and usable in written English.
It can be used when discussing a specific segment or fraction of the human population in various contexts, such as social issues, demographics, or philosophical discussions.
Example: "A proportion of humanity struggles with access to clean water, highlighting the need for global initiatives to address this crisis."
Alternatives: "a segment of the population" or "a fraction of mankind."
This idea has penetrated deep into the collective consciousness: the idea that poverty is somehow inevitable, ineluctable, a given condition for a significant proportion of humanity.
"His achievements have made it possible to treat infertility, a medical condition afflicting a large proportion of humanity, including more than 10% of all couples worldwide," it said.
"His achievements have made it possible to treat infertility, a medical condition afflicting a large proportion of humanity including more than 10% of all couples worldwide," the Nobel Committee wrote, noting that approximately 4 million children have been born following IVF.
A Facebook future is one in which a significant proportion of humanity's data sits, not on the open web, but on the closed social network.
A large proportion of humanity enjoys playing with at least one of them from time to time.
All past ideas of utopia were unrealistic, because it was assumed that Malthus was right and there would never be enough physical resources for more than a tiny proportion of humanity to live in comfort.
For example, a significant proportion of humanities and social sciences faculty of color specialize in research related to race, ethnicity, difference or intersectionality.
It is true that 1.2 billion people still live below the $1.25 threshold, but the proportion of humanity in that desperate condition is lower than it was.
According to a statistical survey that Fuller made some years ago for Fortune, the proportion of all humanity enjoying the benefits of the highest technology had risen from less than six per cent in 1914 to twenty per cent in 1938.
Cereal crops provide a significant proportion of the calories consumed by humanity (http://faostat3.fao.org/) so maintaining and improving upon current production levels will be critical to provide food security for a growing world population.
