Global and country-level prevalence of atheism in 2020

My previous post examined trends in religious belief and irreligion (non-religious and atheism) over the last 40 years using data from the World Values Surveys (WVS) and European Values Study (EVS) [1-4]. There is considerable interest in the prevalence of atheism, particularly from Americans, and a variety of quite different statistics are quoted, and have been written about in various media. In this post, I present my estimates of global prevalence of atheism for the year 2020 and discuss the various other sources of international statistics and the definitional issues. But first, here is my global map based on data from the WVS/EVS (see here for details of analysis).

And here is a closer view of the map for Eurasia. Further below in this post, I have included a more detailed country-level plot of all the religiosity categories (practicing religious, non-practicing religious, non-religious, atheist) for 2020.

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Is religious belief in decline and atheism on the rise?

Ronald Inglehart has recently published an article in Foreign Affairs called “Giving up on God: the global decline of religion” in which he uses data from the most recent wave of the World Values Surveys (WVS) to claim that between 2007 and 2019, the importance of religion has declined in most countries [1]. This is based on a single question on the importance of God in the respondent’s life on a 10-point scale. The average importance declined in 39 countries and increased in only 5.  Apart from the fact that this is based only on a single question on the importance of God, it also does not tell us how regional or global average ratings have changed. Depending on the relative populations and scale shifts in different countries, it could potentially even be consistent with a global average increase.

I’ve taken a closer look at trends in religious belief and practice using data from the World Values Survey and European Values Study [2-5] which have interviewed over 630,000 people in 110 countries in seven waves of the surveys over the period 1981 to 2020. These surveys include a direct question on whether you believe in God (Yes/No/Don’t know), but also “Are you a religious person” (Religious, Non-religious, Confirmed Atheist) and questions on frequency and type of religious practices, and on the importance in your life of religion and God. Of the 105 countries, 76 have data for years in range 2017-2020, and another 17 have data on or later than 2010.

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Anaximander – the first scientist

Recently I discovered Carlo Rovelli, an Italian physicist and best-selling popular science writer and noticed he had written a book on Anaximander, an early Greek philosopher who lived around 150 years before Socrates in the sixth century BC. Though I read some of the Greek philosophers when I was younger, I don’t recall coming across Anaximander. I thoroughly enjoyed reading his book and so here is a review.

Anaximander (c. 610 – c. 546 BC), lived in Miletus, a city of Ionia (in modern-day Turkey) and was a student of Thales. Nothing but a few quotations and descriptions of his work survive in the works of later philosophers, but from this sparse information, Rovelli mounts a persuasive argument that Anaximander was the first true scientist, the first to suggest that order in the world was due to natural forces, not supernatural ones.

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The twin pandemics and the second wave

Today, I took another look at the second wave of the Covid-19 pandemic using data on confirmed new cases per day. The first figure shows four countries where the second wave has peaked and is coming down. Australia is somewhat unique in that its second wave peaked considerably higher than the first. Croatia and likely Spain will join that club.

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Variations and trends in cultural values across 105 countries, 1980 to 2020

I’ve long been interested in the relationship between the stages of development of the individual (whether stages of moral development, psychological development, or consciousness) and the stages of development of human societies and civilizations. With the increasing prominence of fundamentalist religion in some regions of the world, the rise of science denialism and “post-truth” popularist politics, differences in human values are of huge importance and can literally become life and death matters for people. More generally, it seems fairly clear that people’s beliefs play a key role in economic development, the emergence and flourishing of democratic institutions, the rise of gender equality, and the extent to which societies have effective governments.

So I have taken an interest in results from the World Values Survey over the last two decades, and last month learnt that data from its most recent wave was being released in late July. There have now been seven waves of the World Values Survey (WVS), the first in 1980-1982 and the seventh underway since 2017. There have also been five waves of the European Values Study (EVS), which includes many of the same items as the WVS, and whose most recent wave covers the period 2017-2020. With the release of the WVS 7th wave data for 48 countries in July 2020, the WVS plus the EVS now include data for 117 countries or territories and over 638,000 respondents, covering the period 1981-2020.

Data from previous waves of the World Values Survey were used by political scientists Ronald Inglehart and Christian Welzel to identify two major dimensions of cross cultural variation across the world. They refer to these as Traditional values versus Secular-rational values and Survival values versus Emancipative values. Traditional values emphasize the importance of religion, parent-child ties, deference to authority and traditional family values in contrast to secular-rational values. Survival values place emphasis on economic and physical security. It is linked with a relatively ethnocentric outlook and low levels of trust and tolerance. Emancipative values are associated with gender equality, relative acceptance of divorce, abortion, and homosexuality and rising demands for participation in decision-making in economic and political life. Inglehart and Welzel used factor analysis to estimate where each country lies on these two dimensions are constructed what they called a “culture map”.

I set out to replicate this analysis with the full WVS+EVS dataset including the latest wave [1-4]. I decided to use a different statistical approach (item response theory) to estimate the two dimensions. I have posted a more technical summary on my professional website to give details of this analysis. In brief, I used structural equation modelling to estimate two latent variables. The survival-emancipative variable was derived from data for three questions of gender equality (jobs, politics, education) and three questions on acceptance of homosexuality, abortion, and divorce. The traditional-secular values variable was derived from data for three questions on sources of authority (nation pride, government, parents) and three questions on religion (importance, belief, practice. The values for countries with data for years 2005 or later were used to extrapolate values for year 2019. The following “culture map” shows the location of 105 countries based in these two variables.

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A pandemic out of control

Over the last two days, I’ve been assessing the coronavirus situation across the world. I’ve posted a regional analysis of trends in new cases on my professional site (an-out-of-control-pandemic-in-most-world-regions).

I reproduce a graph of regional trends below. The dramatic difference in trajectories for Western Europe and the Americas is obvious. While levels are lower in most developing regions, this is mostly due to much lower levels of testing. But confirmed new cases in all regions apart from Europe and East Asia and Pacific are rising.

North America has the most out-of-control epidemic, and that is all due to the USA. I plotted trends for blue and red states in the USA. There is a dramatic difference, with most of the recent rise in new cases occurring in red states (that voted for Republican presidents in most of the recent presidential elections). In the week ending July 5, there were an average 226 new cases per 1 million population in red states compared to 88 per million in blue states.

In a second post which-countries-are-succeeding-and-not-succeeding, I have shown country-specific plots for selected examples of three groups of countries: (1) those that are beating Covid-19, (2) those that are nearly there, and  (3) those that need to take action.  The experiences of the first two groups of countries show that (a) it is important to act early, not wait till there a hundreds of deaths in the country, (b) it only takes about 5-7 weeks of strong interventions to get rid of the majority of cases and (c) half measures don’t work.

COVID-19: light at the end of the tunnel for some countries

Tomorrow, Switzerland will relax its social distancing regime. Classroom teaching at primary and lower secondary schools will again be permitted. Shops, markets, museums, libraries, gyms and restaurants will be able to reopen under strict compliance with precautionary measures. Switzerland has had the 10th highest death rate per million people but has been one of the few high death rate countries to successfully control the epidemic. See the plot for Switzerland below.

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COVID-19 short-run projections

Its now one month since my earlier post on the coronavirus pandemic    A lot has changed since then. We have gone from 24,392 deaths globally on March 26 to 206,915 on April 26th. And recent analysis of total registered deaths by week in February and March, compared to the same periods in the previous year, suggest that the reported deaths (mostly hospital deaths) are only about 70% of the actual deaths. The proportion of deaths reported in developing countries without good death registration (including most of Africa, and much of Asia) will be even lower.

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COVID-19: the big picture

Today Switzerland became the country with the highest rate of confirmed cases of corona virus per million population. Well, that is if you ignore some micro-populations such as the Vatican City, San Marino, Andorra and Faeroe Islands. Why?  It is landlocked with Italy, France and Germany around it. It did not close the border between Ticino and Italy for cross-border workers and many live in Italy were the virus spread rapidly. Also, it was the height of the ski season and alpine resorts were crowded with skiers from all over Europe, Britain and beyond. Here is a graph I did yesterday comparing confirmed cases per million population  for the thirty leading countries (excluding small countries with population less than one million. Data are from worldometers.com at 13.11 GMT on March 24. A this point Switzerland had not yet overtaken Italy.

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Becoming Human Part 1

Our understanding of the evolution of us modern humans has changed dramatically in the last few years as ancient genomes are decoded and we discover that humans, Neanderthals and Denisovans interbred, and also in the remote past interbred with previously unknown “superarchaic” human groups.  Scientists are also discovering new species of extinct hominids, and no doubt will continue to shed further light on our origins. Just to try to sort out the big picture in my own mind and to put these various discoveries in context, I’ve tried to summarize what we think we know, or at least what the evidence available to date suggests. This will no doubt continue to change.

This is the first of two posts and summarizes the evolution of pre-human species from the first monkeys around 35 million years ago (Mya) to the appearance of the first human species around 2 Mya. A following post will summarize the evolution of humans from the appearance of the first human species Homo habilis 2 Mya to the appearance of anatomically modern Homo sapiens sapiens around 250 thousand years ago and  mitochondrial Eve, who lived around 178,000 years ago.

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