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  1.

    Did AI researchers let AI hallucinations into scientific papers?

    Investigating a claim that 100 made-up claims were found in AI papers

  2. Did 35,000 Americans die building the Panama Canal?

    We fact check a claim made by Donald Trump about the world famous canal

  3. Did 20 million votes really go missing in the US election?

    We investigate a viral graph that suggests turnout was drastically lower than in 2020

  4. Detecting Bad Science with Data

    Uncovering fraud, malpractice and incompetence in science

  5. Dementia, inflation and shark deaths

    Health risks for presidential hopefuls, falling inflation, shark deaths and salary claims

  6. Delta cases, blue tits and that one-in-two cancer claim

    Should we worry about the Delta variant? Plus how much do blue tits eat?

  7. Degrees of Debt

    We look at the numbers behind the increase in the cap on undergraduate tuition fees in...

  8. Defence Spending, Rare Earths and Trunk Truths

    The numbers behind Ukraine’s rare earth worth and the UK’s defence spending ambitions.

  9. Deciding when to suspend a vaccine

    Weighing up the risk of unproven side effects with stopping Covid 19.

  10. Debunking the Liverpool FC Conspiracy Theory

    We debunk spurious rumours that Liverpool FC use asthma medication to enhance performance

  11. Debunking the claim that migrants will get half of new homes

    Tim Harford investigates migration and housing, Welsh literacy, and bond market drama

  12. Debt, students, shark and chips

    What is the government’s rule on debt? Do 90% of chip shops sell shark and chips?

  13. Debate, Reform, tax evasion and ants

    Fact-checking the leaders' debate, tax evasion savings and the weight of ants.

  14. Deaths, taxes and missing cats

    We investigate claims about gun crime, the UK tax burden, and the number of missing cats.

  15. Deaths at Home, Supermarket Infections and the Cobra Effect

    Where are people catching Covid-19?

  16. Deaths at home, supermarket infections and the Cobra effect

    Where are people catching Covid-19?

  17. Death, Tax and Dishwashers

    Why is estimating the number of unvaccinated people so tricky? And how deadly is 2021?

  18. Death Penalty abolition

    The story behind the countries that have not executed anyone for 10 years

  19. Day light saving time and heart attacks

    Does the sudden loss of an hour of sleep raise the risk of having a heart attack?

  20. Data, extreme weather and climate change

    The role data plays in climate attribution - and why we don’t always have it

  21. Data in the time of cholera

    A journey back to the birth of epidemiology

  22. Data for India

    Changing India in numbers: what type of country will the next administration lead?

  23. Cybermetrics and Groundhog Day

    Can you measure your popularity – or that of anyone or anything – by the number of...

  24. Covid, HGV driver shortages and protest costs

    Has Brexit caused a fall in lorry drivers? Plus policing Extinction Rebellion

  25. Covid-19 fatality rate

    Why don't we know how dangerous Covid -19 really is?

  26. Covid vaccines and false claims about miscarriage

    We debunk viral claims that incorrectly link covid-19 vaccines with a risk of miscarriage

  27. Covid trends, face mask use, and the universal credit cut

    A coronavirus check-in, our daily mask use measured, and the universal credit cut.

  28. Covid testing capacity, refugee numbers, and mascara

    Confusing claims on lab capacity, the UK’s record on asylum, and the volume of eyelashes.

  29. Covid plasma therapy

    Claims about a Covid-19 treatment, breast cancer screening, and 18th century sex workers.

  30. Covid misconceptions and US deaths

    How many of us believe the myths about coronavirus?

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