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Bjorn Lomborg Profile picture
@BjornLomborg
Sep 1, 2021 • 8 tweets • 5 min read • Read on X
Scrolly
You're being lied to:

Report claims disasters 5x over past 50 years

But because of better reporting

How do we know?

Take well-measured US tornados:

WMO thinks they've 𝗶𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝟭𝟯𝘅
In reality, 𝗵𝗮𝗹𝘃𝗲𝗱
library.wmo.int/doc_num.php?ex…
bbc.com/news/science-e… Image
Incompetent WMO report tells you that disasters 5x over past 50 years

But because of better reporting

How do we know?

Take well-measured US hurricanes:

WMO thinks they've 𝗶𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝟰𝘅
They haven't increased at all

library.wmo.int/doc_num.php?ex…
bbc.com/news/science-e… Image
You're being lied to:

Report claims disasters 5x over past 50 years

But because of better reporting

How do we know?

Take well-measured US tornados:

WMO thinks they've 𝗶𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝟭𝟯𝘅
In reality, 𝗵𝗮𝗹𝘃𝗲𝗱
library.wmo.int/doc_num.php?ex…
bbc.com/news/science-e… Image
Using EMDAT data to falsely suggest that catastrophes are increasing is simply dishonest

Increase is from better reporting, data does *not* support claims that # catastrophes are increasing

This lie has been exposed *so* many times

When will media stop misrepresenting better reporting as worse climate outcomes?

@MattMcGrathBBC — looking at you — will you update your story to highlight that this is simply better reporting?

bbc.com/news/science-e… Image
Maybe instead, the media could find some time to point out that societal vulnerability to climate-related disasters has *dramatically* dropped over the past century:

deaths dropped by more than 96-98% (while global population quadrupled)

facebook.com/bjornlomborg/p… Image
Here is my long twitter-thread from last year, when another UN organization disgracefully made the same bad report
Here are all the main categories from the disaster database — *all* increase dramatically

If you with this data wrongly want to claim climate change makes more weather disasters

you also have to wrongly argue climate makes more derailings and volcanos

public.emdat.be Image

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More from @BjornLomborg

Bjorn Lomborg Profile picture
Jul 3
Less Global Fire

Halfway through 2026, the world has burned at record-low levels

Every continent is below average, and Africa, Americas, and Europe are at record lows

Media only shows when stuff is burning, leaving us badly informed on climate change

gwis.jrc.ec.europa.eu/apps/gwis.stat…Image
Less Global Fire

Halfway through 2026, the world has burned at record-low levels for more than three months

Every continent is below average, and Africa, Americas, and Europe are at record lows

Media only showing stuff burning leaves us badly informed

gwis.jrc.ec.europa.eu/apps/gwis.stat…Image
2026 Fire in Europe at record lows

Halfway through 2026, Europe has burned less than in any year 2012-25

Every continent is below average, and Africa and the Americas are at record lows

Media only showing stuff burning leaves us badly informed

gwis.jrc.ec.europa.eu/apps/gwis.stat…Image
Read 10 tweets
Bjorn Lomborg Profile picture
Jun 25
Every year, Europe lets 10,000s of its citizens die from heat because of its ideological rejection of the century-old technology of air conditioning

With US-level air conditioning, Europe could prevent about 26,000 deaths in a year like 2022

rogerpielkejr.substack.com/p/europes-dead…Image
EU: Lowest use of air conditioning

Highest rate of heat deaths

With US-level AC, it could save about 26,000 lives a year

Europe is rich and has, by latitude, fewer hot days than most inhabited regions

Its aversion to air conditioning is entirely because of an energy-degrowth ideology

rogerpielkejr.substack.com/p/europes-dead…Image
@RogerPielkeJr Although we may think that everyone would have AC in the warmest countries, they don't

Even in hot Greece, one-third of homes don't have air conditioning Image
Read 4 tweets
Bjorn Lomborg Profile picture
May 12
Dementia risk down by two-thirds over past 40 years

In 1984, nearly 1 in 3 people in their late 80s had dementia

By 2024, it’s down to just 1 in 10

Data for US, but similar in Sweden, the Netherlands, the UK, and France

jamanetwork.com/journals/jama/…, free: pmc.ncbi.nlm.nih.gov/articles/PMC12…Image
Dementia risk down by two-thirds over past 40 years

Possible explanations, smoking⬇️ and education⬆️, along with better nutrition and better management of hypertension, cholesterol, and depression

jamanetwork.com/journals/jama/…, free: pmc.ncbi.nlm.nih.gov/articles/PMC12…Image
Dementia risk down by two-thirds over past 40 years

— with no slowdown at the end of the 40-year period

So when you hear that the future will bring a tsunami of dementia because there will be many more old people, it ignores that each person will likely be less at-risk

(A bit like the 1970s worried about a tsunami of cancer, but age-adjusted death risks are down)

jamanetwork.com/journals/jama/…, free: pmc.ncbi.nlm.nih.gov/articles/PMC12…Image
Read 4 tweets
Bjorn Lomborg Profile picture
May 2
Textbook climate deception:

Lancet report blames climate for tens of thousands of European heat deaths

But hides that increase almost entirely due to an aging population

And ignores cold deaths, which are down much, much more

Refs and documentation in 🧵Image
Textbook climate deception:

Lancet report blames climate for tens of thousands of European heat deaths

But the increase is almost entirely due to an aging population

thelancet.com/journals/lanpu… ihmeuw.org/7jat, population.un.org/wppImage
Textbook climate deception:

Lancet report blames climate for 39,000 European heat deaths

But increase almost entirely due to an aging population

Real scientists show you the age-adjusted risk

(unlike scare-mongering campaigners)

thelancet.com/journals/lanpu…, ihmeuw.org/7jagImage
Read 7 tweets
Bjorn Lomborg Profile picture
Oct 30, 2025
Climate professor Michael Mann claims “There is no greater threat to developing nations than the climate crisis”

His claim is wrong in many ways

1) Intuitively wrong. Poor parents across the world worry about hunger, poverty, disease, insecurity, bad education. When your kid could die tonight from an easily curable disease, your priority is not a 0.1°C temperature reduction in a century

Mann quote: edition.cnn.com/2025/10/28/bus…Image
WRONG: Climate professor Michael Mann claims “There is no greater threat to developing nations than the climate crisis”

2) Leaders in low- and middle-income countries find education, employment, peace, and health are at the top of their development priorities, with climate at 12th of 16 issues

docs.aiddata.org/ad4/pdfs/Liste…Image
WRONG: Climate professor Michael Mann claims “There is no greater threat to developing nations than the climate crisis”

3) World Bank’s own surveys show that climate is not high on most countries’ agenda

On average, less than 6% of countries have climate in their top 3 priorities
Image
Read 5 tweets
Bjorn Lomborg Profile picture
Sep 2, 2025
The world is burning less, not more

That's contrary to the climate narrative

2025 has seen dramatically less fire in Africa, the Americas, Asia, and Europe

On this trajectory, 2025 could become the lowest-burn year in the 21st century

Did you see this reported anywhere?

Data: from satellites circling the planet 24/7 (MODIS), modis.gsfc.nasa.gov/data/dataprod/…

2025 data from Jan 1-Sept 2 shows 80% as much burned area as normally for same period 2012-24 from Global Wildfire Information System, gwis.jrc.ec.europa.eu/apps/gwis.stat…

Light blue data shows extrapolation on current trajectory to full 2025Image
In 2025, the world is burning less, not more

That's contrary to the climate narrative

2025 has seen extraordinarily little fire in Africa, much less than average, and even less than the minimum, from 2012-24

Did you see this reported anywhere?

Data from Global Wildfire Information System gwis.jrc.ec.europa.eu/apps/gwis.stat…Image
In 2025, the world is burning less, not more

That's contrary to the climate narrative

2025 has seen extraordinarily little fire in the Americas, much less than average, and even less than the minimum, from 2012-24

Did you see this reported anywhere?

Data from Global Wildfire Information System gwis.jrc.ec.europa.eu/apps/gwis.stat…Image
Read 7 tweets

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