Be Smart 
Learn the basic science of climate change in 24 easy steps.
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub
Scientists overwhelmingly agree that our climate is changing, Earth is getting warmer, sea levels are rising, and it’s primarily because of humans putting lots of carbon dioxide in the atmosphere. Whether you already trust in the science, you’re undecided, or you disagree with what all this, this video is for you!
SOURCES LISTED HERE: http://bit.ly/1zGbOry
Want to learn about the science of climate change and why humans are causing it, but in layman’s terms? I recommend these books:
Climate Change: Evidence and Causes (National Academy of Sciences/Royal Society) FREE ebook: http://amzn.to/1w6itfl
Global Weirdness (Climate Central) http://amzn.to/1BtZZbP
How to Change Minds About Our Changing Climate (Seth Darling + Douglas Sisterson) http://amzn.to/12jjcxN
Produced for PBS Digital Studios
Joe Hanson – Creator/Host/Writer
Joe Nicolosi – Director
Amanda Fox – Producer, Spotzen IncKate Eads – Associate Producer
Andrew Matthews – Editing/Motion Graphics
Katie Graham – Director of Photography
John Knudsen – Gaffer
Dalton Allen – Post-Production Intern
Theme music:
“Ouroboros” by Kevin MacLeod
———–
Join us on Patreon!
https://patreon.com/itsokaytobesmart
Twitter
http://www.twitter.com/DrJoeHanson
http://www.twitter.com/okaytobesmart
Instagram
http://www.instagram.com/DrJoeHanson
http://www.instagram.com/okaytobesmart
Merch
https://store.dftba.com/collections/its-okay-to-be-smart
Facebook
https://www.facebook.com/itsokaytobesmartpbs/
source
About The Author
Everyone stop breathing
mr be smart what should the c02 be to have a stable climate just a question
Here's a novel idea…..With 10's of thousands of immigrants sitting around in our country, how about putting them to work. I can see 10's of thousands of acres of wood and brushland in California that could be cleaned up with raking and mulching so that we don't have to blame climate change for out of control fires in the urban sprawl areas in California. Areas that should not be occupied as they are naturally dry as a bone for big parts of every year or two. If they don't like this kind of work……They know where the border is to get home.
This video is total bullshit from beginning to end.
Termites produce more CO2 than all human and human activity combined.
CO2 is 0.04% of the atmosphere, ALL gases in the atmosphere are green house gases not just CO2
Are you gonna ban oxygen and nitrogen?
Can you explain how the global temperature goes up and down and the CO2 follows that trend up to 800 years later?
Anyone who believes a rare gas that is essential for all plant life is an evil boogeyman.
You are obviously uneducated and paid to this video.
No mention of the Milankovich cycles of the earth, or the fact that the earth's magnetic field has been decreasing since about 1850 and the fact that we are coming out of an ice age. This is the correlation equals causation falicy. Big holes in this "science". Big ones! The most prevalent green house gas in the atmosphere is water vapor. Can't measure that from an ice core.
It’s not going to change anyone’s mind but I posted it on my story and will continue trying to explain to uneducated people about climate change. People who don’t believe in climate change aren’t going to believe in it no matter how many facts you throw at them. They’re stupid. Obviously evident by the fact that they already don’t believe in it
As you stand in the sun and feel its warmth, what you’re feeling is the ‘photonic energy’ of visible light being converted to infrared radiation and absorbed into your body. This occurs at the ‘quantum level’, just as when carbon dioxide in the air absorbs ‘infrared radiation’. This is quantum mechanics in action.
[Note: Neither oxygen nor nitrogen interact with visible light or with infrared light.]
SHEEPLE? ad-homenim attack much?
Not sold
Fabricated bullshit
This did change my mind ❤ I went from thinking "climate change is real the world's getting 2 degrees warmer," to ,"OHMYGAWD ITS WORSE THAN I THOUGHT!!!" So thanks for that 😂😂😂 sometimes we need that reality check. Appreciate you❤
Climate change is a fantasy… All my life they said the world was going to end by 1980, 1990, 2000 and NONE OF THESE PREDICTIONS EVER CAME TRUE!
Not a single logical argument was made here. Still don't believe
None of the climate models include cloud cover. 60% of the earth is covered in clouds at any given time. Climate panic is a hoax. I'm keeping my combustible engine, my gas stove and my freedom. Piss off!
I can't believe we're still at the same point 9 years later 😓
Yes it's Nonfiction-Climate-Science😇😇😇😇😇😇😇😇😇😇😇😇🤩🤩🤩🤩🤩🤩🤩😍😍😍😍😍😍🥰🥰🥰🥰🥰🥰🥰🥰
Boring and bulls
Very good @superior.science is a source of science films, please follow me
Electric cars are for men with pussys
This guys gotta still be a virgin there is no way😂😂
Yes we are ignorant was it not science that told us to switch from paper to plastic now the worlds biggest problem?💩
Science introduced the cane toad to australia ?
There's like 30 poor assumptions here masquerading as facts.
This is information dangerous enough to fool average university grads and empower them to be activists
Cherry picked data again: "…co2 levels are the highest they've been for almost a million years…"
True.
But they were higher, VERY MUCH HIGHER, if you go back further. But little facts like that are very inconvenient when you're trying to prove a point? It's hard to argue that mankind burning fossil fuel well over 100million years ago caused co2 levels to hit far, far higher levels…
And co2 is absolutely essential for all life on Earth because it is fundamental for the growth of all vegetation. And vegetation, in turn, is absolutely fundamental for maintaining the entire food chain on the planet.
'Climate' changes all the time. It always has done, and it will always continue to do so. The planet has survived and it will continue to survive. So this isn't really a matter of 'saving the planet' – the issue is simply that this is 'inconvenient' for the rapidly increasing growth of the human population.
About 12,000 years ago there was an “Ice Age Termination Event” that was the start of the Holocene Epoch in which we live in today.
Yes, we are actually living in an ice age. We are in an “interglacial period” at the tail end of the last ice age. During this time in the “Milankovitch Cycles”, ice caps melt, and the planet gets warmer. This has happened many times in geological history. Of course the climate is changing. The only constant in climate is constant change.
We are not apart from Earth, we are a part of it – and we need to take care of our planet. Let's do something about people practicing slash and burn agriculture. Let's do something about unbridled population growth in parts of the world where education is minimal at best.
The physics in his explaination are completely wrong!
I'm quite sceptical of any consensus pushed by governments since COVID and I was starting to lean against climate change, with the anti-public socio-economic, pro big business policies world governments are pushing on us. But this video is technically convincing so, thanks
Wissenschaftler darf man alle in der Pfeife rauchen, weil die nicht unabhängig sind und nur ihrem Arbeitgeber in den Arsch kriechen!!!
I'm all for people affecting the climate and for making changes ect. But I dont think electric cars are the answer by any means. If people actually cared about fuel emissions they would all be hybrid cars. Reduce the need for battery changes while also reducing emissions. Full electric right now isn't feasible so why not do something that is.
Because, as you filed to point out during this video, it's all model data*. The equivariant of taking data and going 'I *think this is the cause based on X and Y'. It's basically what conspiracy theorists on Twitter do when they see ancient civilizations depict lizard people in the art, take stories from ancient myths and then look at pictures of modern day politicians with poor face lifts and then say 'SEE?!? THIS PROVES THE ROYAL FAMILY ARE LIZARD PEOPLE!'.
It was the same the science that led the COVID hysteria, and in hindsight… how well did that go? The only truth about climate change is that it will end up so the 99% have to eat bugs and pay taxes to travel further than 15 mins from their home, while the 1% continue to have stakes and fly around on private planes.
Climate and water going to be world's focus, lets do more to understand it
I’m thinking if sea levels are rising why are the rich building mansions by the ocean 🤷♂️
For every major discussion topic in history, there have been people on both sides of a debate who base their ideas on a vague faith in something they've been told. So the discussion about climate change needs to be from a scientific perspective. I'm by no means saying I understand even a fraction of the depth of climate science needed to evaluate it properly. I'm saying the discussion should be without prejudice, and with as little emotion as humanly possible. The most important value in science is to question everything, they tell you that in grade school but not many take it to heart. Everyone knows the most legendary scientists have taken down paradigms, but not many are open to questioning mainstream theories themselves. No theory is ever proven and there are always alternative theories. A scientist has weakly supported opinions and strongly supported theories but they are NEVER certain. This is what i mean when i say scientific perspective. Not more or less knowledge, not on a particular side of any particular debate.
We have to try to understand the more complicated aspects of the subject , not simply quote the media.
This topic, climate, is a very, VERY complicated one. We all know that weather is not climate. You cannot simply look out the window, see that it's snowing and say there's no global warming. You also cannot point to any forest fire or hurricane and say its caused by "climate change". It is not simple. It is a matter of probabilities and statistical analysis beyond my comprehension.
It is widely established that the Earth is on a natural warming trend. Climate always changes in a local area, on different scales, but over many years the NET trend is toward a warmer Earth.
🧐most scientists agree on:
– glaciers are on a melting trend, most glaciers globally are receding
– the Earth was probably due for a warming trend (although trends in climate are not a predictable pattern whatsoever), it would be regardless of humans , we recently (in geological time) came out of a glacial period. This is due in part to the Milankovitch Cycle, a well established and academically accepted understanding of the cycles of Earth's climate dependent on the tilt and relationship to the sun etc
– a change in global climate trends can have extreme effects as equilibriums are disturbed , (like the wind in the spring)
– the greenhouse effect is a natural, very IMPORTANT part of our planets ability to sustain life
– levels of C02 are measured in certain locations, some in Tanzania and Hawaii because secluded and away from urban heat Islands, (keep in mind the local conditions including volcanoes that can increase C02 readings)…. it gets complicated when you start thinking about atmospheric chemistry – I cant wait to learn more!
– C02 levels are rising (if you are to believe the data and trust the individuals who put out the statistics, which personally i don't)
– the changing climate will effect all life on Earth, some organisms will benefit, others will struggle, evolve, ecosysytems will have to rearrange, people will have to move houses away from rising sea levels etc Coral reefs have already shown adapting behaviour, when the seas warm they are bleeched and their mutualistic bacteria that photosynthesize for them are killed off but they are OBSERVED COMING BACK because they adapt and change their skeleton
– contrails add cloud and change local weather patterns, condensing more water and making it fall more often? I am unsure the effects of this system
there's more but…….
– the Carbon cycle is necessary for all life on earth. fossil fuels are a reservoir for plants. increased CO2 increases vegetation.
🧐Opinions based on faith/belief:
Whether or not humans and fossil fuels are putting enough C02 into the atmosphere to accelerate the greenhouse effect in a SIGNIFICANT manner AND whether or not this is detrimental to the planet or simply another change in the environment that humans and all other organisms must adapt to because that's the nature of life on Earth
Even IF there is any kind of substantial effect from humans, lets be clear and not narcissistic, the Earth and life in general will be fine. The biosphere has survived drastic changed in climate time and again over the millions of years of evolution. The nature of life is to adapt. The adapting coral reefs as mentioned, who is to say this isn't what they always do in fluctuating temperatures and scientists are simply just observing it now and believing the bleeching to be "our fault"
Do I hate polar bears and revel in the idea of their demise? No, on the contrary, the thought of any living thing being harmed in any way saddens me. But emotion has no place in science. I am very wary of those who try to sway me with emotion.
Respect others beliefs without judging or thinking you're better than them or assuming they are horrible people who don't care. I care, probably more than most. I always bring my own water bottle, a coffee bottle to the coffee shop, love the reusable bags, use all my things until they are functionally unusable even if they don't look great anymore, I have a biodiverse lawn etc etc I do everything I can that I feel is right in my local community and ecosystem not because I want to impress anyone but because it is better. Pollution and mass production suck, I don't like a lot about it and there are better ways of doing things. I also don't hate humanity and think our species is a "plague" to the planet. We are beautiful and deserve to survive like every other animal. Every bad thing that happens to every other animal is not OUR FAULT. NATURE IS NOT A FAIRY-TALE. ANY EDGE ANY OTHER ANIMAL CAN GET TO SURVIVE THEY DO without remorse. WE CARE, we try to do right and have morality, that's good, but we should not be degrading our own worth and existence, that is a ploy by those in power. I don't feel bad about driving a car, I do wish it was electric but I cannot afford it and if the powers at be really cared about the pollution they would make electric cars better and cheaper. YES they could in the snap of a finger but they don't give a rats ass, and carbon taxes do NOTHING but put money in their pockets.
If I'm presented with evidence that strongly points to humans ARE accelerating the trend and this is horrible for the Earth, will I admit I was wrong ? Yes, wholeheartedly and without shame.
The point is to follow the evidence to the most likely truth regardless of belief.
“Climate change is happening and we are causing it”. The fact that there has been a slight warming trend recently is not disputed. However, no scientist has yet been able to link this to the CO2 levels in the atmosphere.
How can people say it is not human beings fault, when even in a climate change crisis we have nimrod countries like Russia, Israel, Palestine, Iran, the US and China who still continue wars and nuclear threat when we are ALREADY WAY PAST a acceptable point in carbon admission into the atmosphere? Of cause climate change is not a hoax, just like the terrible effects of war is not a joke. Wake up people before you will be forced into a rude awakening by your own stupidity!
Why does he have to ridicule people and make sarcastic comments to teach about climate change? You attract more with honey than with being a pompous a$$ gen z er
I won’t be showing this “educational” video to my son because I’ll also be teaching him how to be a snarky know it all and that’s the last thing that you want to teach a teenager. This video is a pass…
Have you considered that you're just "woke"? /s
yeah so im going to help lowering our carbon footprints by destroying life as we know it because ALL LIFE AND PLANTS EVERYTHING IS CARBON dumbshits
Great video. I've been following it
Great video. I've been following it
Binance's CEO opens up about future developments in an exclusive interview
Here it comes: a notification of cash refund
If you are a student and want to excel in your science class, or a budding scientist, or anyone interested in science, this channel has what interests you. All you have to do is click subscribe and activate the bell to receive everything new.
In 1979 we were able to get by with only an attic fan, but in 2022 I needed two air conditioners to cool half the space! I have seen an increase in temperature in that time of two degrees per year!
a full degree!!!!😂
out dated science here. Back radiation had been invalidated make greenhouse effect false.