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June 16, 2025

“The Global Fertility Crisis is Worse Than You Think”

The title of today’s post comes from an excellent recent talk in London given by my AEI colleague (and University of Pennsylvania professor), Jesús Fernández-Villaverde. Today I look at the simple math of population projections to clarify the nature of the “crisis” — which is indeed worse than I thought. On X/Twitter, JFV summarized his talk as follows: The…

June 4, 2025

What is a “Worst Case” Climate Scenario?

The implausibly extreme and hugely popular climate scenario RCP8.5 made it into President Trump’s executive order last week on “Restoring Gold Standard Science.” Ironically, the Trump administration’s characterization of RCP8.5 did not quite reach the “gold standard,” and maybe not even a “bronze standard. “ The EO states: [Federal a]gencies have used Representative Concentration Pathway…

Tesla and SpaceX CEO Elon Musk, from left, Republican presidential nominee former President Donald Trump and Republican vice presidential nominee Sen. JD Vance, R-Ohio, attend a campaign event at the Butler Farm Show, Saturday, Oct. 5, 2024, in Butler, Pa. (AP Photo/Alex Brandon)

June 3, 2025

The Politicization of Intelligence, Part 2

In Part 1 of this two-part series I discussed the National Intelligence Council (NIC) and its role iin synthesizing and summarizing intelligence from across the U.S. government’s intelligence gathering agencies. Today, in Part 2 I take a broader look at the challenges of securing reliable intelligence in an environment characterized by ever-present politics. Intelligence in decision making “includes…

May 30, 2025

A Bitter Pill to Swallow: American Drug Shortages

While drug pricing has been a consistent focus for policymakers concerned about access to medicine, another significant barrier to care has grown: drug shortages. Drug shortages have become more prevalent, with causes ranging from problems at manufacturing facilities, compliance with regulation to unpredictable demand. An insufficiently profitable market, particularly for complex generic medicines, discourages investment…

May 23, 2025

Heavy Metal

More than 7,000 years ago, humans first began mining copper. Since then, humans have mined more than 700 million tonnes. According to a fascinating study of the metals requirements of a net zero energy transition, the world will need to produce another 700 million tonnes of copper over the next 22 years. The study, by Simon Michaux of the…

May 19, 2025

Ten Provocative Graphs

The figures and data below are all hot of the press and shared to help get your weekend off to an intellectually stimulating start. Enjoy! The Earth is Darkening In a new posting, climate scientist James Hansen calls our attention to a “BFD”: Earth’s albedo (or reflectivity) is the portion (percent) of incoming solar radiation that…

April 17, 2025

The New Rules for Experts

My friend and AEI colleague Tony Mills — director of the AEI Center for Technology, Science, and Energy — has been on a tear lately. Today, I share four of Tony’s essays published in the past month on public trust in science, reform of NIH, COVID’s long-term costs, and how virologists lost the gain-of-function debate. Enjoy, and see you…

April 14, 2025

The Strange New Politics of Science

Amid the familiar lines of political division in America—immigration, abortion, taxes, regulation, and the like—a new divide has emerged over trust in science. Concerns about the politicization of science and the “scientization” of politics can be traced back decades. But more recent trends indicate that we are entering a new era in the politics of science,…

April 8, 2025

Does Testosterone Make Men?

Does biology determine destiny, or is society the dominant cause of masculine and feminine traits? In this spirited exchange, the psychologist Cordelia Fine and the evolutionary biologist Carole Hooven unpack the complex relationship between testosterone and human behaviour. Fine emphasises variability, flexibility and context – seeing gender as shaped by social forces as much as…

April 3, 2025

The New NIH Director Has His Work Cut Out For Him

In the wake of Covid, trust in scientific and medical experts has eroded and become starkly polarized, threatening the ability of science agencies to sustain broad public support. The National Institutes of Health in particular has become a lightning rod, due to the controversial roles of Anthony Fauci and Francis Collins during the pandemic as…