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01 / 05
Weekly Progress Roundup

Newsletter | Population Growth

Weekly Progress Roundup

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The history of Easter Island has long served as an environmental fable.

The popular “ecocide” theory claims that, during their escalating obsession with building the famous Moai statues, the native Rapa Nui people deforested their once-verdant island, creating an ecological crisis that led to population collapse, cannibalism, and a complete reordering of Rapa Nui society.

A new study raises serious doubts about this narrative. After analyzing the remains of 15 ancient islanders, researchers found no evidence of the drop in genetic diversity one would expect after a population collapse. In fact, the genomes suggest Easter Island’s population grew steadily until European contact. According to archaeogeneticists Stephan Schiffels and Kathrin Nägele, “the study concludes that there were never more than 3,000 people living on Rapa Nui — a number close to that observed by the first colonizers and far from a previous estimate of 15,000 inhabitants — implying that the hypothesized collapse was always a fantasy.”

Clearly Easter Island was deforested, but it seems the Rapa Nui adapted to that environmental change and continued to thrive for hundreds of years. Humanity has once again proven to be more resilient than we give ourselves credit for.

Malcolm Cochran, Digital Communications Manager


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Wall Street Journal | Health & Medical Care

Americans in Their 80s and 90s Are Redefining Old Age

“For a growing number of Americans, old age has undergone a profound transformation. Many are living to advanced ages in good health, with some even demonstrating improvements with the passing years.

A long-running study of older people in the greater New Haven, Conn., area found that most who had lost the ability to feed or bathe themselves recovered within six months, and often sooner. The Einstein Aging Study, which has followed people 70 or older from the Bronx since 1993, discovered a declining rate of dementia in successive age cohorts born after 1929. 

According to research at the Stanford Center on Longevity, older Americans report higher levels of emotional well-being and lower levels of negative emotions compared with young adults.”

From Wall Street Journal.

World Health Organization | Mental Health

Global Suicide Rate Dropped Significantly Since 2000

“Between 2000 and 2021, the global age-standardized suicide rate dropped by 35%. The decreases varied by WHO region: 3% in Africa, 26% in South-East Asia, 30% in the Eastern Mediterranean, 48% in Europe and 50% in the Western Pacific (Fig. 10). The only region with an increase was the Americas, where the age-standardized suicide rate rose by 17% in the same time period. The global rate also decreased for age-group specific suicide rates (i.e. 15-29 years, 30-49 years, 50-69 years, and 70+ years) in the same time period.”

From World Health Organization.

Blog Post | Food Production

More People, More Food: Why Ehrlich and Thanos Got It Wrong

Compared to 1900, we have 8.28 million fewer farmers today with 263.7 million more people. And we live 30 years longer.

In 1900, the U.S. Census recorded a total population of 76.3 million, including 11 million farmers. Today, with a population nearing 340 million, the number of farmers has dropped to just 2.72 million.

At the turn of the century, each farmer fed 6.94 people. Today, that number has risen to 125. While the U.S. population grew by 346 percent, farmer productivity soared by 1,702 percent. Each one percent increase in population corresponded to a 4.92 percent increase in farmer productivity.

In 1900, life expectancy was just 47 years. Today, it’s around 77. Medicine and sanitation played a role, but the abundance of food made possible by farmers discovering and applying new knowledge was a foundational driver of that gain.

So, who’s going to tell Ehrlich and Thanos they had it backwards? More life discovers more knowledge, which leads to better tools and more abundant resources.

Find more of Gale’s work at his Substack, Gale Winds.

BMC Health Services Research | Health Systems

Drone Deliveries Drastically Reduce Maternal Deaths in Ghana

The drone delivery company Zipline is transforming healthcare in Ghana by ensuring fast and reliable access to medical supplies. According to a recent study, healthcare facilities in Ghana’s Ashanti Region that gained access to Zipline’s drone delivery service saw maternal deaths fall by 56.4 percent.

From BMC Health Services Research.