Profile picture
Bjorn Lomborg
@BjornLomborg
, 4 tweets, 2 min read Read on Twitter
When people tell you the Amazon is the "lungs of the earth" they are just wrong.

The Amazon, like all other ecosystems, produce as much oxygen as they consume, thus their net production is about zero

yadvindermalhi.org/blog/does-the-…
So, yes, Macron is just awfully wrong


(and his picture is over 20 years old, nytimes.com/2019/08/23/wor…)
Broeker pointed out long ago, that even if all plants, on land as well as at sea, were killed off and then decomposed, the process would consume less than 1 percent of the atmosphere’s oxygen

science.sciencemag.org/content/168/39…
Here again, it is confirmed that the Amazon produces no net oxygen

theatlantic.com/science/archiv…
Missing some Tweet in this thread?
You can try to force a refresh.

Like this thread? Get email updates or save it to PDF!

Subscribe to Bjorn Lomborg
Profile picture

Get real-time email alerts when new unrolls are available from this author!

This content may be removed anytime!

Twitter may remove this content at anytime, convert it as a PDF, save and print for later use!

Try unrolling a thread yourself!

how to unroll video

1) Follow Thread Reader App on Twitter so you can easily mention us!

2) Go to a Twitter thread (series of Tweets by the same owner) and mention us with a keyword "unroll" @threadreaderapp unroll

You can practice here first or read more on our help page!

More from @BjornLomborg see all

Profile picture
Bjorn Lomborg
@BjornLomborg
So now we know the result of the incessant scare campaign on climate for the last 30 years

About half of all people across the world believe humanity will go extinct because of climate!

This is totally against what the UN Climate Panel tells us

yougov.co.uk/topics/science…
By the 2070s, the total cost of climate change will be equivalent to losing 0.2-2% of the average income

By then, we'll be 300-500% richer

This is a problem, not the end-of-the-world

archive.ipcc.ch/pdf/assessment…
Literally, the UN Climate Panel tells us that almost all other challenges will have much greater impact than climate will

like changes in population, age, income, technology, relative prices, lifestyle, regulation and governance

ipcc.ch/site/assets/up…
Read 6 tweets
Profile picture
Bjorn Lomborg
@BjornLomborg
Germany's government wants to spend €40bn over next 4 years to cut CO₂. This will cut global temps by 0.00018°C

The same money spent on tuberculosis could save more than 10 million lives

What is best?

Time to talk about priorities

dw.com/en/germanys-ru…
Background: not clear how the €40 billion would be spent. I assume that it — generously — could allow Germany to actually reach its 2020 40% below 1990-level emissions. It is right now estimated to reach 32%, so 8% of 1990 1251Mt CO₂e is 100Mt CO₂e
cleanenergywire.org/factsheets/ger…
For 4 years, that is 400Mt CO₂e
IPCC estimates that 3,667 Gt CO₂ can reduce temperatures by 0.8-2.5°C, with the most likely outcome at 0.45°C per 1,000 Gt CO₂.
That translates the 0.4Gt CO₂e roughly into 0.4*0.45/1000=0.00018°C

royalsocietypublishing.org/doi/10.1098/rs…
Read 4 tweets
Profile picture
Bjorn Lomborg
@BjornLomborg
With all the media claims about the Amazon burning at "record" rates, it is perhaps worth realizing that NASA says total fire activity is close to the average of the last 15 years

earthobservatory.nasa.gov/images/145464/…
The fire emission estimates (for all of the Amazon, also the one outside Brazil) suggests that 2019 is not in any way a record

globalfiredata.org/forecast.html
Robert Walker has a great walk-through of why the Brazilian INPE is in general a great science outlet and we should likely trust their deforestation estimates, but how the number-of-fires estimates are not reliable

science20.com/robert_walker/…
Read 3 tweets

Related threads

Profile picture
Armond Ray Erickson
@ArmonRaE
@EmmanuelMacron The image on the left shows a fire from 1989, and the image on the right has been online since at least 2012. A number of other outdated and unrelated photographs have also been circulated as if they depicted the 2019 #AmazonFires.
snopes.com/fact-check/ama…
@EmmanuelMacron Plankton that are plants, known as #phytoplankton, grow and get their own energy through photosynthesis and are responsible for producing an estimated 80% of the world’s oxygen. They need #CO2 to thrive.
eos.org/research-spotl…
@EmmanuelMacron Many use fire to maintain farmland or to clear land.
Typically, activity peaks in early Sept & mostly stops by Nov.
#NASA satellite data indicates total fire activity across the #AmazonBasin this year has been close to the average of the past 15 years.
earthobservatory.nasa.gov/images/145464/…
Read 25 tweets
Profile picture
Dr. Jonathan Foley
@GlobalEcoGuy
Okay. The spike in Amazonian deforestation and fires is a huge problem — for climate, for biodiversity, for indigenous communities, and for the entire world.

But one thing we don’t need to worry about is the world’s oxygen supply.
Despite the widespread claim, the Amazon doesn’t produce 20% of the world’s oxygen.

It’s more like ~6%
Also, the forests are being replaced by pastures and croplands, which also do photosynthesis and produce similar amounts of oxygen.
Read 12 tweets
Profile picture
Filomena Rocha
@Filomen03258997
The Amazon the largest lung in our world is on fire😭.
It's time for humanity to stop & think seriously about what it is doing🤨.
Is this our legacy for future generations😠?
Is money more important than conserving nature😡?
🗣️We need the forests to survive.
🗣️Protect nature!
"The fires burning in the #Amazon rain forest are so large and widespread that smoke has wafted thousands of miles away to the Atlantic coast, according to the World Meteorological Organization"
nyti.ms/31VHDRb
Via @Miami_Rebelde
There is no "ngo" burning the #AmazonRainforest these are Cattle Ranchers, most of whom voted for #Bolsonaro. They're destroying the #Enviroment to steal #Indigenous land for themselves #NativeTwitter!#IndigenousRights #NativeLivesMatter
Read 97 tweets
Profile picture
Ali El Idrissi
@alielidr
Our consumption model is hurting our environment, our physical and mental health. We’re over-using natural resources, exposing children to toxic chemicals in our everyday products, and creating too much waste. This is unsustainable. Thread👇
#sustainability
Humanity lives at credit and consumes resources equal to that of 1.7 planets a year, vs 1.4 a decade ago and 0.8 in 1963. If population and consumption trends continue, this figure will rise to 2 planets by 2030.
overshootday.org
#sustainabilitymatters #earth
The problem is about quantity, quality, and behaviors. We produce too much useless and disposable stuff, using enormous resources, cheap materials and labor, that we often barely use and quickly throw away.
medium.com/newco/our-cons…
#zerowaste #circulareconomy
Read 11 tweets
Profile picture
Lars Pellinat
@Lars9596
@cjjacobsJacobs @CDU @JuliaKloeckner @annewill 1. Various questions need to be asked:
a) Is the #earth getting warmer? Answer Yes (but was ven warmer in the past)
b) Human impact on climate (CO2)? A: Yes, but science differ on size of impact.
@cjjacobsJacobs @CDU @JuliaKloeckner @annewill 2.
c) #Germany produces 2% of all CO2 - So if we all live in tents tomorrow & only ride bicycles will it make a big difference? A: No, but the Chinese & Americans won't stop laughing!
#AnneWill #Klimawandel #ClimateChange
@cjjacobsJacobs @CDU @JuliaKloeckner @annewill 3.
So I like a debate on points a) to c) purely based on #science (and "a consensus of paid lobbyscientists" is not science, but politics) & come up with workable solutions.
PS: Currently #China produces around 26% of all man-made CO2.
Read 7 tweets
Profile picture
Albert Pinto
@70sBachchan
#Amazon & #Indonesia deforestation driven by demand for Soy (feeding pigs), Cattle (beef) & Palm Oil #BeforeTheFlood cfr.org/interactives/a…
California can use its $ & political solidarity to protect Brazil's forests."Cash crops pay more than trees.The CA Tropical Forest Standard would tip the economic scales in favor of keeping more land as forest & growing more crops elsewhere" ht @jonahbusch calmatters.org/commentary/cli…
Dutch govt supports its firms 'sustainable' invstmt in Brazil's Northern Corridor while its own internal studies show that it will worsen Amazon deforestation & conflict.
Read 10 tweets

Trending hashtags

#zerowaste #holocaust #BernieSanders #Gucci #Newstart #AmazonFire #RamMandir2019Push #AmazonRainforest #yourewelcome #CHINA #RamJanmabhoomi #Brazilian #MandirWahiBanayenge #Amazon #FFM #ReclaimHistory #Klimawandel #Bluetooth #Colombia #UPDATE #MICU #STEMI #EmmanuelMacron #LauraLoomer #RCT
Follow Us on Twitter!

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just three indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3.00/month or $30.00/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!