TED-Ed 
View full lesson: http://ed.ted.com/lessons/cloudy-climate-change-how-clouds-affect-earth-s-temperature-jasper-kirkby
As the Earth’s surface temperature gradually rises, it has become vital for us to predict the rate of this increase with as much precision as possible. In order to do that, scientists need to understand more about aerosols and clouds. Jasper Kirkby details an experiment at CERN that aims to do just that.
Lesson by Jasper Kirkby, animation by Cedric Richer.
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Interesting that they chose 1750 as a date to measure the warming as 1750 was in a perod known as the Maunder minimum or mini ice-age and was very cold….. Had they measured it from say 1150 instead, then there would be no warming but an actual decrease as it was much warmer in the period 950 -1300. Interesting how you can cheat using statistics….
If there's so much uncertainty about how exactly and in what quantity aerosols affect global temperatures, WHY is everyone blaming CO2?
hotter temps=more evaporation= more clouds to reflect the heat of sun rays?
The Sun modulates the Cosmic rays hitting earth. High sun-spots numbers = fewer cosmic rays = fewer clouds = colder climate. ie: during the Grand Solar Minimum (GSM). Artificial injection of aerosols into the troposphere via contrails, "chemtrails", ship tracks and other methods is intended to manufacture artificial clouds as a covert operation to mitigate dire consequences of the current GSM that began circa 2009.
I have never heard of aerosol in hair
Btw the scene at the end was adorable
I guess this is based on the IPPCs climate models that are about 67% wrong all the time..
Thanks for answering my question~
BORING! John D. Maclean's 2014 paper of how cloud cover decrease is mainly responsible for Global warming. 6.8% cloud decrease in 23 years. Less aerosols because of cleaner air; water vapour NEEDS aerosols to nucleate and form clouds. See YouTube "No particles, no fog."
Complete BS.
Thats complete bs the climate is been changing from extreme cold and warm cycles over millions of years from where in the medievil warm period greenland was ice free when the vikings roamed there then the earth got colder into the cold cycle that lasted 500 years called the maunder minimum the mini ice age
While clouds reflect sunlight due to their albedo, absence of clouds and water vapour would make it easier to IR from earth surface radiate much faster back to space. This video has some errors.
Narrative planning, execution, and false not all but false information none the less.
Anyone interested in the effect of cosmic rays on the climate should check out nir shaviv. Very informative.
Thank God we smarter now .
Check out Mike Morales while you can ….!!!!
the truth about climate change https://www.youtube.com/watch?v=BZGKyILMvTE&t=3s
At the time of recording the global temperature warmer 0.9 as that year was just over a tenth of a degree cooler than 2015 which just about edged over 1 degrees.
And how do chemtrails affect clouds?
We see this everyday. It’s call GeoEngineering; Aerosol sprays, causing 'global dimming'. NA$A's goal is 100% Weather control by 2025.
https://www.youtube.com/watch?v=Rg3MqdBX0_k&t=1026s
🙂
Omg! Why dont they look att history before 1750?
https://youtu.be/ANMTPF1blpQ
Lol computer models like the one used to justify the last 4 months of house arrest? Even if the whole premise wasn’t a false dilemma, I’d still say ya should come up with a different approach.
Why this voice of this dictors is sticking me?
wow
1 degree of warming of the ocean surface, from ANY source, including sunlight or CO2, results in 7% more water molecules above that warmer surface…..which convect up into the troposphere. Only a few percent of that water vapor becomes CLOUDS. But that cloud cover reflecting the sunlight back into outer space, thus shading the ground, is sufficient to control the planet's temperature, on average, with a degree or so. Non-cloud forming gases, such as CO2, are irrelevant to this primary sunlight reflection phenomenon. In fact CO2 and other radiative gases, which includes water vapor above its dewpoint, only change the altitude at which clouds form…..and not the way you expect, increased CO2 actually radiating more heat and cooling the top of troposphere compared to150 years ago. Lower down, the CO2 traps more heat, but in so doing, causes more clouds to be created a weather front or two later…..
Gonna be honest. I'm just pretending I'm Tony Stark and this is Jarvis explaining cloudy climate change to me while I buy crypto.
Very informing… I get addicted to Ted for grasping the university concepts.
All well and good theoretical science, but your models will only and always project the results you intend. More #fearporn!
oof
And seven years later we still have the same uncertainty…
Easy to reduce air pollution, reduce global warming, don't want as you think -Join the campaign to reduce global warming, reduce air pollution, stop greenhouse gas emissions – https://www.youtube.com/watch?v=YPnCB47hnos
Do you know that current models are so flawed and approximate that they cannot even predict seasons? And yet we allow these doomsayers to influence our daily lives to sell electrics cars and tax your life
the universe is and has always been in constant change.
The highest recorded temp on Earth was 134 F in Death Valley on July 13, 1910.
The highest recorded temp in Alaska was 100 F on June 27, 1915.
The highest recorded temp in Hawaii was 100 F on April 27, 1931.
The highest recorded temp in Florida was 108 F on June 29, 1931.
The highest recorded temp in my state, Ohio, was 113 F on July 21, 1934.
These are just few examples of record temps set when CO2 levels were much, much lower.
NASA feeds the satellite temperature data through their AI algorithm which cools the past and warms the present. They call it science.
More data and analysis: https://www.youtube.com/watch?v=lZVjwDZwZYw