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Bjorn Lomborg
@BjornLomborg
, 6 tweets, 4 min read Read on Twitter
Depressing how climate makes good organizations lose their proportion

Medical organizations claim unsupportably that climate biggest public 21st century *health* challenge

Just obesity kills 409,000 Americans every year
Alcohol kills 88,000 each year

thehill.com/policy/energy-…
Yes, climate change is a problem, but not a catastrophe. UN Climate Panel estimate total impact (not just health) by 2070s equivalent to 0.2-2% reduction in income

These smart organizations (like American Medical Organization) should know better.

climatehealthaction.org/cta/climate-he…
Correct air pollution big killer (not 200K+, but 70-100K)

but about better regulation of power plants, industrial processes & cars, not more renewables

(and even then, much PM2.5 from car tires)

weasely/no link to climate

atmos-chem-phys.net/18/15003/2018/
climatehealthaction.org/media/cta_docs…
Arguing catastrophes have caused "thousands of deaths" is weasely — over many years, and nothing compared to 409K deaths/year from obesity (ihmeuw.org/4tx0)
Moreover, it neglects that globally, because of prosperity, deaths from climate declining
facebook.com/bjornlomborg/p…
And really, heat vs cold?
In their climate-obsession, these esteemed medical societies forgot to check the data
The US has 24x more cold than heat deaths (extrapolated to 2019, about 5K heat, 207K cold)
sciencedirect.com/science/articl…
And even with strong warming *and* adaptation, it is likely that even the future, will see fewer, not more heat/cold deaths
nber.org/papers/w23271
dx.doi.org/10.1289/ehp.13…
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More from @BjornLomborg see all

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Bjorn Lomborg
@BjornLomborg
Greta skewers hypocritical alarmists: If you believe climate is an existential threat, you need to just stop CO₂

But adults telling her climate is an existential threat are just blatantly wrong

Climate is a problem, not end-of-world
and proposed 'solutions' often worse
The UN Climate Panel tells us that climate impacts by 2070s are equal to average reduction in income of 0.2-2%

Equivalent to one recession in the next half-century
archive.ipcc.ch/pdf/assessment…
UN Climate Panel's estimate of damage across temperatures (updated by Climate Nobel Laureate Nordhaus) shows moderate costs — likely about 2-4% of GDP by 2100, even if we do nothing
nber.org/reporter/2017n…
Read 9 tweets
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Bjorn Lomborg
@BjornLomborg
Unbridled alarmism:

No, our current trajectory is about 4°C, not 6°C

No, 4°C is not the end-of-the-world, it is a problem, equivalent to reducing average income by about 3-4% in 2100 (when OECD will be 200-500% as rich as today and Africa 300-2,200% richer)
Here is the UN Climate Panel estimate of damages, updated by Nobel Laureate Nordhaus

nber.org/reporter/2017n…
Here is the UN Climate Panel estimates of incomes
sciencedirect.com/science/articl…

OECD/Africa accessible here: tntcat.iiasa.ac.at/SspDb/dsd
Read 4 tweets
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Bjorn Lomborg
@BjornLomborg
Clickbait vs truth:

2018 Nature study shows Tuvalu *increased* in size despite sea level rise and 'will persist for habitation over next century'

Cover of Time with UN Secretary-General in water outside Tuvalu 'Our Sinking Planet'
time.com/longform/sinki…
nature.com/articles/s4146…
Story talks about all the 'vulnerable nations' like Kiribati and the Marshall Islands
Both have seen *increasing* land area

Indeed, lastest meta-overview shows "no atoll exhibited a decrease in land area over the past decades to century"
onlinelibrary.wiley.com/doi/full/10.10…
How is this possible?
Bc small islands are dynamic:
Storms breaking up surrounding coral, washing up on beach, slightly increasing/rising area
Sea level rise reducing area
(& humans both increasing area and destroying it through destabilization)
agupubs.onlinelibrary.wiley.com/doi/full/10.10…
Read 4 tweets

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