"population crisis" is a correct and usable phrase in written English.
It refers to a situation where a population is facing significant challenges or issues, often due to overpopulation or rapid population growth. Example: "The world is facing a population crisis as the global population continues to grow at an unsustainable rate."
The population crisis in Russia is well-documented.
Says that 1,371 papers were delivered, many alluding to the world population crisis and possible massive starvation.
Russia today is facing a real population crisis as young people emigrate, those who stay have fewer children and the life expectancy of men is falling.
Beyond those numbers and the science are people and their journey, starting with a population crisis and continuing today with an energy crisis.
There is a population crisis — not in America, but on a planet that is rapidly losing its ecological integrity and facing a new age of human-caused extinction.
The population crisis is especially acute in Africa, as Eugene Linden writes in the accompanying article, but it spans the globe, from Central America to Asia.
Since property owners constituted a minority of the population, crises of underconsumption and retarded production could occur.
Here, of course, is a way that man may take if he really desires a world in which there are no wars, no population crises, no Dostoyevskian agonies.
The U.S. Agency for International Development pushed condom use in developing countries to help solve the "world population crises": by 1970 hundreds of millions of condoms were being used each year in India alone.
Instead, they exhibit behaviours and life history traits (e.g. tameness, loss of flight, large size, low fecundity) that predispose them to population crises when predatory animals are introduced [10], [11], suggesting that they are evolutionarily 'trapped' [12], [13].
Together we can help to put an end to our nation's animal over-population crisis.
