r/science • • 1d ago

AMA AMA: I'm Prof Ollie Jay, and I lead the Lancet Countdown’s work on the health impacts of climate change. I'll be answering your questions on 3 Nov at 7:30am EST / 13:30 CET.

32 Upvotes

https://profiles.sydney.edu.au/ollie.jay

The Lancet Countdown on Health and Climate Change has just launched its 10th anniversary report, highlighting the latest evidence on how climate change is affecting human health around the world.

I’m Prof Ollie Jay, and I lead the Lancet Countdown’s work on the health hazards, exposures and impacts of climate change. Our work looks at how climate change is affecting:

  • Extreme heat and heat exposure
  • Heat-related labour loss
  • Wildfire exposure
  • The transmission of infectious diseases
  • Drought, extreme rainfall, and food security

… and what these mean for our health.

I’ll be here to answer your questions about the findings of our latest report, what the evidence tells us about the health risks of climate change, and what can be done to protect people and communities.

Please submit your questions and join me on November 3 2026, from 07:30–09:30 EST / 13:30–15:30 CET when I'll be answering them.

Find out more about the report here: http://lancetcountdown.org/2026-report/

AMA!

Username: u/TheLancetCountdown


r/science • • 4h ago

Psychology Six future Trump officials (Vance, Rubio, Gabbard, Hegseth, Patel, RFK Jr.) wrote books before taking office. Researchers counted 2,074 metaphors in them: about 91% were about threats, and war was the top theme by far. Fear showed up in about 95% of passages, while hope-themed ones made up under 10%

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8.3k Upvotes

r/science • • 2h ago

Psychology People who favor science over religious dogma are surprisingly open to believing in ghosts and magic. These findings suggest that the modern shift toward rationality does not eliminate enchantment but redirects it away from organized institutions.

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1.7k Upvotes

r/science • • 6h ago

Psychology Childhood abuse is linked to distinct brain differences depending on age, sex, and type of maltreatment

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424 Upvotes

r/science • • 19h ago

Health People who deactivated Facebook and Instagram for six weeks before the 2020 election reported substantial improvement in measures of happiness, depression, and anxiety (relative to controls who deactivated for just the first of those six weeks).

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4.9k Upvotes

r/science • • 1d ago

Psychology Men who blend emotional openness and progressive gender attitudes into their sense of manhood appear to be less reactive when their masculinity is called into question. Findings suggest that how men react to challenges to their gender status depends in part on how they define manhood for themselves.

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9.9k Upvotes

r/science • • 5h ago

Neuroscience Large consortium finds no meaningful association between behavioral and neural measures of emotion regulation, raising questions about what it means to regulate emotions effectively.

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156 Upvotes

r/science • • 1d ago

Health Splitting a workout into 3 quick 1-minute sets of 20 squats spread across the day built about the same strength as doing all 60 squats in one go, an 8-week study of 45 young weight lifters found. The bonus: people who did these bite-sized 'exercise snacks' actually enjoyed their workouts a lot more.

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13.5k Upvotes

r/science • • 19h ago

Economics Store robberies are passed through to consumers in the form of higher prices. In the aftermath of a robbery or burglary, prices at victimized stores are 1.7-1.8% higher and 1.5% higher at nearby stores. Crime results in a substantial "hidden" tax, primarily born by consumers.

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1.8k Upvotes

r/science • • 18h ago

Psychology People in interracial relationships tend to be more politically liberal, a US study of 12,600 young adults finds. They had 37% higher odds of liberal views. The link is stronger for women and unmarried people, but it's unclear if dating across races shifts politics or liberals just date more widely.

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1.4k Upvotes

r/science • • 3h ago

Epidemiology Repeated importations are driving Japan's measles resurgence, spreading among young adults with gaps in their vaccination history. Vaccinated people who catch it often have a mild, easily missed form.

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79 Upvotes

r/science • • 21h ago

Environment Smoke from LA fires exposed millions of people to high levels of toxic heavy metals. During the peak of the 2025 Los Angeles fires, approximately 7 million residents were exposed to airborne lead concentrations over 24 hours that exceeded 80 times the normal background level

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1.3k Upvotes

r/science • • 53m ago

Psychology A new study found that individuals with antagonistic narcissism are more likely to support violent extremism on both sides of the US abortion debate, using the cause to satisfy personal needs for aggression rather than moral conviction.

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• Upvotes

r/science • • 20h ago

Psychology Research in the U.S found that partisan media operations spent millions of dollars on social media ads ahead of key elections to promote pink slime websites masquerading as local news sources to sway voters with their content.

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953 Upvotes

r/science • • 14h ago

Cancer A study using breast tissue samples from 13 women found that exposure to mixtures of bisphenols, chemicals found in everyday plastics and food packaging, disrupted normal breast tissue development and produced molecular changes resembling those seen in certain breast cancers.

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296 Upvotes

r/science • • 11h ago

Economics The rural-urban political divide is rooted in protectionism and uncompetitive agriculture. The divide is negligible in regions with a comparative advantage in agriculture. Rural voters support protectionist parties and policies when the local agriculture is uncompetitive.

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164 Upvotes

r/science • • 1d ago

Environment California could lose up to 75% of its beaches by 2100, new climate assessment finds

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1.5k Upvotes

r/science • • 5h ago

Health A new study suggests that mechanical clot removal can improve functional recovery for certain stroke patients up to 72 hours after symptom onset, provided they have salvageable brain tissue, but the procedure carries a significantly higher risk of brain bleeding and death.

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47 Upvotes

r/science • • 1d ago

Neuroscience Your brain quietly gets rid of billions of faulty neurons around the time you are born: scientists studied over 2,300 brain cells and found over 1 in 4 neurons in fetuses had huge chunks of chromosomes missing or duplicated, but only about 6% did after birth, so only the healthiest ones get to stay.

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1.7k Upvotes

r/science • • 21h ago

Medicine Financial Anxiety Makes Medical Procedures Feel More Painful

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415 Upvotes

r/science • • 1d ago

Psychology Very religious Americans read the Bible's message on helping the poor differently depending on their income: those earning under $50k say it means building a fairer society, while those earning $100k+ say it means personal charity. Among less religious people, income made no real difference.

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13.1k Upvotes

r/science • • 23h ago

Biology Geothermal amoeba discovered that can survive and even reproduce at the highest temperature ever recorded, 63°C (145°F)

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367 Upvotes

r/science • • 21h ago

Health Study of 2,546 men aged 42–60 found that higher animal protein intake was associated with lower testosterone levels (1.2 nmol/L lower), while higher plant protein intake was associated with higher levels (1.1 nmol/L higher), though the findings don’t establish causation

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261 Upvotes

r/science • • 20h ago

Neuroscience A study of 36 clinical trial participants found that ketamine and MDMA treatments were associated with DNA methylation changes in hundreds of genes, including those linked to brain plasticity and immune regulation, suggesting possible molecular mechanisms behind their psychiatric effects.

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225 Upvotes

r/science • • 2h ago

Health Metabolic sensor Gpr35 links dietary lipids to itch mediating neural circuits: the breakdown product from a commonly consumed fat can bind to a receptor associated with psoriatic itch and inflammation

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9 Upvotes