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Bjorn Lomborg Profile picture
@BjornLomborg
Jul 6 • 4 tweets • 3 min read • Read on X
Today, the Great Barrier Reef is better than ever

But 12 years ago, we were told about the "Great Reef Catastrophe"

and how the reef would be almost gone today

Moral of the story: Don't always believe the scare stories

Refs in🧵
Here is the official data

apps.aims.gov.au/reef-monitorin…
Here is the 2012 article telling us about the terrible state of the Great Barrier Reef

and about how it will almost halve again by 2022 to 5-10%

pnas.org/doi/10.1073/pn…

Image
Image
Here the three media articles (of very many) reporting the purported "Great reef catastrophe"

— now entirely reversed, with Great Barrier Reef having more coral cover than ever since measurements started



smh.com.au/environment/co…
bbc.com/news/science-e…
cbsnews.com/news/half-of-g…
Image

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More from @BjornLomborg

Bjorn Lomborg Profile picture
Jul 2
Doesn't fit the narrative, but

2024 record coral cover for Great Barrier Reef

Based on official data for all 11 sectors of GBR,

Last three years, 2022-2024, have been unprecedented

Data: apps.aims.gov.au/reef-monitorin…Image
Official, reef-wide average widely published as the Great Barrier Reef got worse

But when it got better, official average stopped

Here is the optimal average (least-square) based on their 11 published sectors,

Last official reef-wide average: apps.aims.gov.au/reef-monitorin…
aims.gov.au/reef-monitorin…Image
In 2014, the eco-worried Guardian wrote the obituary of the Great Barrier Reef

Last three years, the Great Barrier Reef has been better than ever since records started in 1986

Moral: Don't believe all scare stories theguardian.com/environment/ng…Image
Read 4 tweets
Bjorn Lomborg Profile picture
Feb 20
Climate alarmists are annoyed that global climate-related disaster deaths have declined dramatically

Then they discovered how to cherry-pick deaths to look like they’re increasing

— just (indefensibly) remove the top 50 most deadly mega-disasters and rig the scales

🧵+refsImage
After manipulating their stats, they have the temerity to claim “Misinterpreting statistics could be harmful if it supports a discourse minimizing the importance of climate action”

I’m pretty sure misinterpreting statistics is wrong no matter what

, p7cred.be/sites/default/…Image
They show low death numbers from 1900s and 1910s, but these are likely wrong ()

They have left out at least two major catastrophes, likely missing at least 20-25 million deaths from the Chinese flood in 1906, leading to famine in 1906-07, and at least 2-10 million deaths from the Persian drought leading to famine in 1917-19


sciencedirect.com/science/articl…
en.wikipedia.org/wiki/Chinese_f…
en.wikipedia.org/wiki/Persian_f…Image
Read 8 tweets
Bjorn Lomborg Profile picture
Feb 4
CO₂ and climate make the world greener

Over 2001-20 the world added so many new leaves

the additional leaf area is equivalent to 1.4x the area of the Contiguous US

Climate net problem

but breathless reporting ignores an ever-greening world

sciencedirect.com/science/articl…Image
CO₂ makes world greener

Every two seconds global leaf area grows by 5 soccer pitches

Every year, the world adds almost three Great Britains of additional leaf area

Climate net problem, but breathless reporting ignores an ever-greening world

sciencedirect.com/science/articl…Image
Global greening happens over most of the world, but especially in China, India, Europe, African Sahel (the greening of the Sahel), Southern Brazil and across US/Canada

Much of this is from forests and increased cropping in croplands

nature.com/articles/s4189…
Image
Read 10 tweets
Bjorn Lomborg Profile picture
Jan 16
Gasoline, not electric cars:

Two-thirds of American's want their next car to be fossil fuel driven, with just 6% battery-electric

Deloitte new 2024 Global Automotive Consumer Study

Key trend: "Slowing EV (electric car) momentum"

deloitte.com/global/en/Indu…Image
Electric cars: Consumers worry

They worry about charging time, range anxiety,
cost, battery safety, and availability of charging infrastructure

deloitte.com/global/en/Indu…
Image
We're being told that electric cars will take over the US

But Biden's Energy Information Administration estimates that by 2050, 84% of all cars will still run on fossil fuels


Image
Read 4 tweets
Bjorn Lomborg Profile picture
Jan 14
Climate alarmists incessantly hype extreme weather

But global climate-related disaster costs are declining

This decline is not just evident globally but also for rich and poor countries, and for flood, flash flood, coastal flood, cold, drought, wind, and all damage

Why don't we hear this?

Notice, damage is measured in % GDP, as even the UN insists on measuring it (e.g. SDG 11.5.2, )

This is because the same flood or storm will create much more damage in a much richer world:

If there are twice as many houses, a flood will tend to damage twice as many houses

Update of academic paper:


unstats.un.org/sdgs/metadata/…
tandfonline.com/doi/full/10.10…
rogerpielkejr.substack.com/p/global-disas…
Image
Cost of climate-related disasters has dropped nearly 5-fold since 1980

True for both richer and poorer countries and for all countries

sciencedirect.com/science/articl…Image
Cost of nearly all climate-related disasters have dropped dramatically over 1980-2016

True for both richer, poorer and all countries, at 50, 100, 200 and 400km

sciencedirect.com/science/articl…
Image
Read 8 tweets
Bjorn Lomborg Profile picture
Jan 13
As cold envelops the Northern Hemisphere, stay warm!

Despite the climate narrative, almost everywhere cold is much more deadly than heat

Cheap and reliable energy to keep us warm used to be the hallmark of prosperous countries

no more because of our climate obsession

🧵+refsImage
Why is cold dangerous?

Because it causes outer blood vessels to constrict to conserve core body heat, driving up blood pressure

Here 2+ million measurements, 6 cities in the US

130+ is classified as high blood pressure
pubmed.ncbi.nlm.nih.gov/29677012/
Image
Blood pressure up in cold

Mayo Clinic: "Blood pressure generally is higher in the winter and lower in the summer"

We see this over the year, here for 23,000 Chinese; markedly higher systolic blood pressure in winter months



academic.oup.com/eurheartj/arti…
mayoclinic.org/diseases-condi…
Image
Read 9 tweets

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