Let's Know Things Podcast Por Colin Wright capa

Let's Know Things

Let's Know Things

De: Colin Wright
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A calm, non-shouty, non-polemical, weekly news analysis podcast for folks of all stripes and leanings who want to know more about what's happening in the world around them. Hosted by analytic journalist Colin Wright since 2016.

letsknowthings.substack.comColin Wright Política e Governo
Episódios
  • Super El Niño

    Super El Niño
    May 19 2026
    This week we talk about oceanic surface temperatures, trade winds, and global climate change.We also discuss the Polar Jet Stream, hurricanes, and climate models.Recommended Book: Kleptopia by Tom BurgisTranscriptUnder normal circumstances, the Pacific Ocean’s average surface temperature, the distribution of heat across its vast expanse, is moderated by trade winds that blow east to west along the equator, which help move warm water from South America over toward Asia.Those winds are called trade winds because, back during the European age of Exploration, they helped ships from Europe head west toward Asia and the Americas. And these winds form in part because of the Earth’s rotation, the Coriolis effect funneling air toward the equator, where it is then more concentrated and thus potent, which is useful if you’re trying to move a ship with sails, but also serves the purpose of moving warm water from one part of the ocean to another part of the ocean.As those warmer surface waters are shifted from the Americas to Asia, water is pulled up to the surface from lower down in the ocean as part of a process called upwelling. This process results in cooler temperatures on the surface, because lower down, oceanic water is colder, and that lower-down water is also more rich in nutrients, which has the knock-on effect of stimulating more biological activity along these cooling surface waters.That’s the normal state of things in the Pacific Ocean.There are sometimes deviations in this norm, however, that result in very different outcomes; these deviations are broadly called the El Niño Southern Oscillation Cycle, and that cycle consists of opposite El Niño and La Niña climate patterns.During La Niña patterns, trade winds are more powerful than usual and they shove a lot more of that warm surface water to Asia than is typical, and that has the net impact of moving more deep-down cold, nutrient-rich, ocean water to the surface.This, in turn, nudges the Polar Jet Stream, which is a channel of fast-moving, westerly winds that lives about 30,000 ft or just over 9000 meters up in the sky, and which crosses both warmer, mid-latitudes and far colder Arctic latitudes, further north. The Polar Jet Stream is responsible for moderating or intensifying weather patterns around the world, and like the trade winds, it’s influenced by the spin of the planet, but it’s also adjusted by surface systems, like the temperature of the Pacific. So the arrival of a La Niña pattern pushes the jet stream further north, and as a result, weather patterns change, and in North America, we tend to see drought in the southwest, heavier rains and flooding and in the Pacific Northwest and Canada, warmer winters in the South, and cooler winters in the North.La Niñas also tend to result in more severe hurricane seasons in the Atlantic basin, while suppressing hurricane activity in the central and eastern Pacific basins.El Niño, in contrast, results from weaker trade winds, which, because these winds don’t pack as much of a punch, means less warm water is being shoved from South America to Asia, and thus the surface temperature of that part of the Pacific is warmer, lacking that upwelling of cold water to replace the warm water that would otherwise be displaced over to Asia.El Niño also adjusts the location of the jet stream, but in the opposite direction, pulling it south of its usual spot. That then causes more heat and dryness across the northern US and Canada, but makes the southern US and Gulf Coast a lot wetter, leading to more flooding.What I’d like to talk about today are predictions about an anticipated upcoming El Niño climate pattern, and why some climate scientists are warning that it could be a doozy.—Climate scientists with the US’s National Oceanic and Atmospheric Administration, the NOAA, released new model forecasts in mid-May, and one of those models indicated that an El Niño pattern could form in the Pacific as soon as June.The NOAA puts together and releases new models on a regular basis, as the variables influencing these massively complex patterns are always changing, and the trend over the past three months has been increasing certainty about the formation of this El Niño pattern, but also an increasing likelihood that this potential El Niño would be very strong, perhaps historically so.There have been a total of 27 El Niños since 1950, when we started officially tracking such things, and we get one every three or four years, on average. The last one occurred from the summer of 2023 into spring of 2024.The current models show that we could see another one of these systems as soon as next month, then, and there’s currently a nearly 60% chance that this particular El Niño would become strong—and that’s an official designation, by the way, a strong El Niño being one that sees an ocean surface temperature increase of between 1.5 and 2 degrees Celsius—and a one-in-three chance that it could ...
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    14 minutos
  • 2026 UK Local Elections

    2026 UK Local Elections
    May 12 2026
    This week we talk about Keir Starmer, Labour, and the Reform UK party.We also discuss Tories, the Lib Dems, and two-party systems.Recommended Book: Peak by K. Anders Ericsson and Robert PoolTranscriptFor more than 100 years, the British political system has been dominated by two parties: Labour and the Conservative Party, often called the Tories.In practice, that means these two parties, which are center-left and center-right in their leanings, respectively, have tended to shape the direction of British politics and the Overton Window of thinkable proposals—things that might actually happen because they get the requisite support from politicians and the public.These two parties have usually had to work with other, smaller parties in order to get anything done, because the UK has a parliamentary system that often leaves the party with the most representatives lacking enough support to run a functioning government, solo. As a consequence, the Liberal Democrats, which is a fairly centrist party, the Green Party, which focuses on environmentalism and more left-wing concerns, Plaid Cymru (plied KUM-ree), which is the Welsh nationalist party, and the Scottish National Party, which is exactly what it sounds like, have long influenced Labour and the Tories, aligning their votes with whomever gives them a seat at the table. This has given some influence to smaller groups that might otherwise lack representation, though that influence has typically been moderate to meager, at best—the folks in Labour and the Conservative party have run things in the UK, and that’s been the case for generations.Things started to shake up a bit in the 20-teens, however, when anti-immigration and EU-skepticism in Britain led to the creation of the far-right Brexit Party, which was co-founded by politician Nigel Farage, who was the leader of the UK Independence Party in the early 2000s and 20-teens, and who was previously a Tory, and Catherine Blaiklock, a politician and hotelier who stepped down from her position as party leader the year after the Brexit Party was founded after anti-Islamic and racist comments she’d previously made online were rediscovered.The Brexit Party existed, almost exclusively, to push for a no-agreement exit from the European Union by the UK, which was considered to be a fairly fringe ideology back then, but which gained a lot of steam as other populists began to add their support to the general concept.Both the government and the existing political structure of the UK was then caught flat-footed, by all indications very surprised by the eventual success of that push, and the UK left the EU on January 31, 2020, after a whole lot of skepticism that it would ever happen, even after a vote in favor of Brexit took place. This represented a serious come to Jesus moment for British politicians, but also British society, and there’s been quite a lot of self-reflection and naval gazing in the years since, as the Brexit pullout from the EU has caused quite a lot of economic and diplomatic damage, while also shining a spotlight on numerous simmering issues that were previously overlooked or unaddressed, including the bubbling resentment and at times outright xenophobia felt by a significant portion of the British electorate, and persistent economic issues faced by folks at the middle and lower rungs of society.What I’d like to talk about today is the recent 2026 UK Local Elections, and what they seem to tell us about how things are going in British politics, and what they portend for the current Labour-run administration.—On May 7, 2026, the UK held local elections for 5,066 councillors, 136 local authorities, and six directly elected mayors. Some of these elections were postponed in 2025 to allow for government restructuring, but most of these positions were last up for election in 2022.This election was generally seen as an unofficial referendum on the governing Labour Party, and in particular the current Prime Minister, Keir Starmer, who has been in office for just under two years, and who stepped into the role of PM after the role was held by the Conservative Tories for 14 years; five different Prime Ministers taking the reins during that period, including David Cameron, Theresa May, Boris Johnson, Liz Truss, and Rishi Sunak.All that changing in leadership is indicative of the chaos the UK government was experiencing at the time, the May 2010 general election leading to a period of significant austerity—the government cutting tons of social programs in order to reduce spending—which then fed into more support for Brexit when some members of the party positioned the economic issues people were facing as the consequence of EU-related immigration, and shortly thereafter, the world succumbed to the Covid-19 pandemic.There was a lot of truly significant political change from about 2010 onward, then, and a lot for the general population to be upset about. The Conservatives held onto power despite it ...
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    14 minutos
  • Child Mortality

    Child Mortality
    May 5 2026
    This week we talk about industrialization, antibiotics, and child mortality rates.We also discuss corruption, instability, and progress.Recommended Book: Empire of Silence by Christopher RuocchioTranscriptDemographic transition is a social sciences theory that posits, based on all sorts of modern historical data, that societies tend to change, demographically, as they transition from a largely agrarian, low-industrial society, to that of a less-agrarian, high-industrial society.Most modern, post-hunter-gatherer societies have started out plowing the vast majority of their labor into bare subsistence, human beings spending their days, throughout their whole lives, working the land in order to produce enough food to live. All sorts of social and economic systems arose around this base-level fact, including those that tied laborers to the land, allowing for the rise of a leadership or ruling class, regional militaries, and other sorts of specialists. But until relatively recent history, the majority of people in a given society labored to produce raw essentials, and that was just the shape of things.This began to change with the dawn of the industrial revolution, and in some areas a bit before that, as precursor technologies allowed societies to produce more food and other essentials with less manual labor and using fewer foundational resources, like land. These technologies, as they became more widely distributed, more effective and efficient, and cheaper to deploy and operate, allowed more people to do more sorts of things, leading to a ballooning of industry and commerce in industrializing regions, and that allowed said regions to invest in other things, including medical knowledge, education, and so on.Life wasn’t exactly a cakewalk in these industrializing areas, and all sorts of new abuses and issues, including long hours at factories and problems related to pollution, arose and became common. But because these sorts of societies required professionals with new types of knowledge and know-how, and because they were able to sustain an increasing number of specialities beyond working the land to generate food and other bare necessities, keeping people alive, longer, and ensuring more people had the specialized knowledge required to do all those things, became more of a priority, and one that could actually be addressed because of the concomitant ability to feed and clothe and house and address more of the needs of more people.There were gobs of other spiraling forces in the mix, of course, including religion, politics, and so on, but that general tendency to shift away from raw subsistence into more complex and diverse economic systems was a driving factor behind a lot of what happened from around 1800 until, well, now.What I’d like to talk about today is a specific data point, or collection of data points, that arguably, more than any other such data points, show the benefits of the industrialized, modern society we’re living in, today, despite all the accompanying downsides.—So most societies, at this point, have undergone significant changes as a result of our widespread application of technologies that allow human beings to get more done with the same amount of effort.We’re able to generate more value, of all kinds, than our ancestors, and though it’s possible to criticize the change in priorities and focus on all the negative knock-on effects of these changes—and there are many such negative knock-on effects, like large-scale military conflicts and rampant pollution and climate change—it would be difficult to argue that there haven’t been some fairly significant upsides for humanity, as well.One key upside is related to that demographic transition I mentioned. As societies shift and it becomes better for everyone if more people know how to do more things, and it thus becomes a priority for more people to live long enough to use the knowledge and know-how they acquire, it has increasingly made more sense for governments to invest in our overall longevity and survivability.We can’t just say, I’d like everyone to live longer, and then snap our fingers and make that happen. But we can, and have, invested in technologies and systems that make longer lives more likely, and from 1800 onward that’s generally been the trend, with a huge upswing arriving in the mid-20th century, when a bunch of new tools and technologies, including things like modern antiseptics and early antibiotics, first arrived on the scene, dramatically reducing the mortality rate associated with all kinds of medical procedures.Arguably the most significant social gain during this period, though, has been the bogglingly large reduction in child mortality rates.Child mortality refers to the death of children under the age of five, and this figure is, today, usually expressed as the likelihood of a child under five dying, per 1000 children in an area. So you might say in India, the child death rate is 92 in 1000,...
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    15 minutos
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