The danger of underplaying world’s weightiest problem

The danger of underplaying world’s weightiest problem

Photo by CHUTTERSNAP on Unsplash

Originally published 30 November 1992

The books we read as chil­dren stay with us all our lives.

Among the books in my par­ents’ library were the pop­u­lar works of Hen­drik Willem van Loon, pub­lished in the years between the World Wars. Those books made an indeli­ble impres­sion on my mind.

Van Loon was a man of ency­clo­pe­dic inter­ests. The vol­umes in our house includ­ed The Sto­ry of Mankind, Van Loon’s Sto­ry of Art, and Van Loon’s Geog­ra­phy. With folksy wit and a genius for sim­pli­fi­ca­tion (all too often, over­sim­pli­fi­ca­tion), van Loon reduced eons of his­to­ry to pithy para­graphs, illus­trat­ed with his own charm­ing, slight­ly loony drawings.

Recent­ly, the Geog­ra­phy fell into my hands from a library shelf and it all came flood­ing back — those rainy Sat­ur­day after­noons near­ly half a cen­tu­ry ago, curled up in a chair with van Loon’s cutesy con­den­sa­tions of history.

Page one has a draw­ing of a pack­ing crate tee­ter­ing on the brink of the Grand Canyon. Van Loon writes: “If every­body in this world of ours were six feet tall and a foot and a half wide and a foot thick, then the whole of the human race (and accord­ing to the lat­est avail­able sta­tis­tics there are now near­ly 2,000,000,000 descen­dants of the orig­i­nal Homo sapi­ens and his wife) could be packed into a box mea­sur­ing half a mile in each direc­tion.” He issued a chal­lenge: “If you don’t believe me, fig­ure it out for yourself.”

I remem­ber accept­ing the chal­lenge. I knew just enough arith­metic then to scrib­ble out the cal­cu­la­tion. It came out exact­ly right. All of the peo­ple in the world would fit into a box that could be tipped into the Grand Canyon.

In Van Loon’s draw­ing, the box looks tiny, tee­ter­ing on the brink of the chasm. It was easy for the boy in the chair (and pre­sum­ably oth­er read­ers) to imag­ine that the human impact on the plan­et was slight, reversible, and man­age­able. In the first illus­tra­tion of his Geog­ra­phy, van Loon under­played the most impor­tant geo­graph­i­cal prob­lem of our time.

The explod­ing human population.

Today, world pop­u­la­tion stands at 5.5 bil­lion, near­ly three times what it was in 1932, the year Van Loon’s Geog­ra­phy was pub­lished. At the present rate of growth, the pop­u­la­tion will dou­ble by the year 2025, and again by the year 2050. With­in a cen­tu­ry, there will be 100 bil­lion peo­ple on Earth.

A hun­dred bil­lion peo­ple would fill a box almost two miles on a side. If the box were placed in the Grand Canyon, it would tow­er over the rim.

A hun­dred bil­lion peo­ple is about two per­sons for every square mile of the Earth­’s land sur­face, includ­ing those parts of the land that are present­ly cov­ered with ice, moun­tains, forests, and deserts.

It is prob­a­bly fair to say that most sci­en­tists find these num­bers alarm­ing. It is dif­fi­cult to grasp how the plan­et can sus­tain so many peo­ple. Our nat­ur­al resources — top­soil, ice-age ground­wa­ter, fos­sil fuels, and min­er­al resources — are being rapid­ly deplet­ed. With more and more peo­ple com­pet­ing for few­er and few­er resources, social con­flicts are sure to arise. New tech­nolo­gies and sources of ener­gy will be invent­ed, but at what cost to the environment?

In 1973, when he was a mem­ber of the US House, George H. W. Bush wrote: “In a world of near­ly 4 bil­lion peo­ple, increas­ing by…80 mil­lion more, every year, pop­u­la­tion growth and how to restrain it are pub­lic con­cerns that com­mand the atten­tion of nation­al and inter­na­tion­al lead­ers.” It was clear, he said, that curb­ing the world’s fer­til­i­ty would be one of the major chal­lenges of the 1970s.

As Pres­i­dent, George Bush has giv­en no sign that the world’s fer­til­i­ty com­mands his atten­tion. In a procla­ma­tion announc­ing World Pop­u­la­tion Aware­ness Week in 1991, he expressed the opin­ion that pop­u­la­tion growth, in and of itself, is a neu­tral phe­nom­e­na: “Because peo­ple are pro­duc­ers as well as con­sumers, pop­u­la­tion growth can also be a sign and a source of strength.” If over­pop­u­la­tion is a pal­pa­ble cause of human mis­ery in unde­vel­oped parts of the world, the Pres­i­dent sug­gest­ed that the prob­lem is due in large part to the fail­ure to adopt mar­ket-ori­ent­ed policies.

Ah, yes. Thank you, Mr. Bush, for the eco­nom­ic equiv­a­lent of van Loon’s draw­ing of the half-mile box tee­ter­ing on the rim of the canyon — sim­plis­tic, triv­i­al­iz­ing, and just plain wrong. It remains to be seen if the Clin­ton admin­is­tra­tion will do better.

Grow­ing pop­u­la­tion con­tributes to prob­lems as diverse as famine, air and water pol­lu­tion, ozone deple­tion, glob­al warm­ing, the destruc­tion of rain forests, extinc­tion of species, and epi­demics such as AIDS. Fer­til­i­ty con­trol is not for the Third World alone. Devel­oped, mar­ket-ori­ent­ed coun­tries use most of the plan­et’s resources and do most of the polluting.

There are no sim­ple solu­tions to the prob­lems of pop­u­la­tion growth. Gov­ern­men­tal efforts to check fer­til­i­ty run counter to indi­vid­ual free­dom, to our nat­ur­al desire for chil­dren, to the reli­gious beliefs of many peo­ple, and — in some respects — to the imper­a­tives of a mar­ket econ­o­my. But to pre­tend the prob­lem does­n’t exist, as our gov­ern­ment has done for the past 12 years, is sheer lunacy.

For all his half-baked sci­ence, chau­vin­is­tic pol­i­tics, and loony illus­tra­tions, Hen­drik Willem van Loon knew, even in 1932, that unchecked pop­u­la­tion growth and deple­tion of nat­ur­al resources were seri­ous prob­lems, demand­ing seri­ous solu­tions. His Geog­ra­phy ends with a plea for “plan­e­tary-plan­ning” that sounds remark­ably rel­e­vant to our time.

As a boy, I quick­ly for­got van Loon’s last-page plea for wis­dom and restraint. It was the first-page draw­ing of the tee­ter­ing box that all these years has stuck in my mind, a draw­ing that min­i­mized the dan­gers of unchecked fer­til­i­ty. That’s what’s wrong with sim­plis­tic for­mu­la­tions of com­plex prob­lems: they tend to dis­tract us from the dif­fi­cult work at hand.


As of 2020, the pop­u­la­tion of the world has climbed to an esti­mat­ed 7.8 bil­lion humans. ‑Ed.

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