The Global Carbon Cycle: Crash Course Chemistry #46

[@crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/2SrDulJ

[@PsychonautTV]

"Awareness isn't the same thing as understanding." - Hank Green, 2014

[@WadcaWymiaru]

Yip. You DO NEED math to prove your state.

[@miahorg]

I'm fairly confident that a definition of success is: Hank wore a t-shirt that I designed in a Crash Course video.

[@kayleehyson136]

I have my AP Chemistry midterm tomorrow, and if it weren't for these videos I would probably fail. Thanks CrashCourse for taking the time to teach the world! :)

[@aur9035]

Oh hey this is the school system on a nutshell

[@macacephalosaurus]

I took 3 chemistry courses this year, and you all have been a tremendous help. My eyes are getting watery here, knowing that crash course chemistry is over, but I will always be a fan and support in whatever ways I can. Thank you so much!

[@Kanrana]

My MCAT is already this weekend and since I graduated with a business undergraduate course, I have little to no background with Organic Chemistry. Having watched your Organic Chemistry series, I have learned so much and even though there's a lot more to it, I'm finally understanding more of the notes I've been reading since I'm learning Org Chem all on my own. Thank you so much for this series!

[@rebeccawood2862]

I'm so pleased that I found this channel! It helps me a lot with school work and is a fun way to revise. The only thing I would say is that he speaks so fast that it's hard to take in all of the information but other than that, I'm really pleased😊

[@FROPDESAI]

Rebecca Wood Why do people always complain that he speaks too fast? I am able to clearly understand each and every word he speaks without even putting much effort into it. And English isn't even my Native language.

[@rebeccawood2862]

I can understand him fine, it's just taking the information in that's the hard part - it goes in one ear and out of the other haha😁 FROP DESAI

[@FROPDESAI]

Rebecca Wood Lol. Ok. Sorry, my bad.

[@rebeccawood2862]

It's fine haha😊 What's your native language then? FROP DESAI

[@FROPDESAI]

My native language is Gujarati.

[@mfons1]

Thanks!

[@dibasaleh3143]

Will you PLEEEEEAAAASSSSSS make physics crash courses and math(calculus, trig) courses!!!!! Thank you

[@charity4613]

I completely agree with you. please do this, crash course!

[@clayward2840]

+potteristical xxx Physics

[@sharkdavid]

ORGANIC CHEMISTRY

[@fullfrontaltubeity]

diba seleh. He can't. Because you can't lie about math. Sorry.

[@Levipaulsen]

For Sure Organic Chemistry

[@frollard]

I just hung my CC periodic table - I wanted to give it to my niece because it's cute and she could learn from a periodic table with clever creatures on it - but it's too awesome so I'm keeping it for me :) My labcoat is in the mail...apparently... Lastly - I think there should be an order-able diploma we can hang to show that we watched and vaguely understood EVERY episode :D

[@jbintali9490]

@@stevenutter3614 haha.. that was 5 years ago

[@jbintali9490]

@@moisus. yup

[@trailblazer153]

More organic chemistry and biochemistry please

[@Levipaulsen]

Hell Yes. Btw Hoo'ah.

[@joresvanwensen922]

Congratulations! to all of you who just like me finished this crash course, DFTBA

[@chefkendranguyen]

Carbon is a boss. Good episode, Hank.

[@Juniperrrrrr]

No, carbon is a tramp :p

[@jackoriley7156]

***** You are made of carbon, therefore you just called yourself a tramp. Well played sir, well played.

[@NWRIBronco6]

Jack O'Riley By your logic the following is true: Carbon is an atom. I'm made of carbon. Therefore, I am an atom. This is a fallacious syllogism. At best you can say that ***** is made of tramps.

[@jackoriley7156]

I took a logic and philosophy course last year so I know, but since TheRockybulwinkle said that carbon is a tramp, which is not logical in any way, I just thought I'd give up logic as well for that comment.

[@Juniperrrrrr]

I'm referencing the first crash course biology.

[@ericvilas]

Is that a Professor Poliakoff shirt? That's from the "Losing fingers to Chemistry" episode, right?

[@aryanshetty6536]

Crash Course chemistry , is the best way to learn and revise , all i hope is they come up with Crash Course Chemistry Season 2. :D

[@nels6991]

The cellular respiration equations (around 5:30) are not balanced. The products got switched. Easy mistake, no harm done. Just didn't see it as a comment so there it is.

[@bartonpaullevenson3427]

I noticed that, too.

[@shankarnarayanan835]

have anyone noticed that the number of views fell down from 2.7 million views in the first video to 466K in this video(almost 63 % decrease). This shows how many people procrastinate important and interesting things like this.

[@Forggggg]

At 1:43 when he said "Heat" the captions said "Head" and I died laughing because I imagined a massive durpy face floating through space! HAHAHHAHAHHAHAHHAHAHHA!

[@mrchangcooler]

He's wearing Professor Poliakoff :D

[@turdl38]

Yay! I work in psych, so this kind of thing is kinda fun. Not that I want to work with this patient population long-term, but I do enjoy learning about it. Plus, there are a LOT of nerdfighters who have anxiety and other mental "issues," so hopefully this will help us to all understand each other better.

[@danieltsmoke]

That farting moose animation just made my night :]

[@jfuqua79]

Thank you so much for this course, it makes me sad that it's over, it's been awesome.

[@yousef.al-assaf]

Thank God KZbin has the 0.5 and 0.25 speed options... Hahaha Great video as always!

[@romantheflash]

This series was great, never really learnt chemistry well before and this really helped me. Thank you Hank and team :D

[@jakegreenhalgh6253]

I started my year in chemistry predicted a D, now thanks to crash course my teacher thinks i will get an A, please don't let it end!!!

[@XpertPilotFSX]

HE'S WEARING A SHIRT WITH THE PROFESSOR ON IT!

[@eh8164]

Martyn Poliakoff

[@kosmar]

Sry, got distracted by professor p's hair

[@adelaximenag.r786]

Dear Hank, First of all, many many thanks for this marvelous video. I have to say, it has helped me tremendously in the understanding of a certain matter I am deeply concerned about and it also has helped me link several unattached concepts in my head. Also, I wish I had discovered Crash Course when I was in high school, it would have helped me inmensly, either way I love the way you and team make the topic introduction so easy to understand and of course, the beautiful graphics of Thought Café and the sound team :') Million thanks from a quite slow College Student.

[@chandrakantshelar873]

Mr.Green,Mr.Green! I think its the right time to start studying about the dominant species of the periodic table.I mean to say 'METALS and METALLURGY', isn't it?

[@PeterGravelle]

So glad to see Hank in a shirt with Professor Poliakoff from PerodicVideos!

[@CorruptReaper]

PSYCHOLOGY!?!?!?!?! YOU GUYS ARE DOING PSYCHOLOGY!!!! *Little Dance*

[@AvielMenter]

I and others have really been looking forward to a physics crash course, but in the absence of that, psychology sounds like a great idea.

[@VolcomStunnaDC]

You guys should do a physics crash course! Please!:)

[@TechLaboratories]

Great summary of the Carbon Cycle. BUT - octane is not the main ingredient in gasoline. The octane rating is a rating system based on the combustion of pure isooctane to give a scale for gasoline autoignition pressure. In fact it is possible to change a gasoline's octane rating without actually changing its octane or isooctane content. Gasoline is hugely varied in its hydrocarbon content, and can vary significantly from vendor to vendor as to its exact composition so long as the energy contained per unit volume remains according to national standards.

[@NikolajLepka]

A Poliakoff shirt! :D

[@niffer08]

I'm so freaking excited for Crash Course: Psychology! My passion is psychology and I'm so looking forward to these videos. I'm already excited for the day I can use them for my future classes!

[@ze_rubenator]

Is that professor Poliakoff on your t-shirt?

[@deldrinov]

Exactly what I thought! :D

[@Todesnuss]

Yea from the video on periodicvideos where he talks about someone losing two fingers or something and then does that gesture which looks like metal horns or the mano cornuta, which is a good thing, at least to me.

[@manasmandal3349]

I truly love crash course chemistry I am an 8th grader and I think I just learned college level chemistry. Hank is the best.

[@vasko002]

Hank, please, we need Crash Course Physics.

[@whitedove2596]

Thank you for all the information. I watch these at work while doing data entry stuff and it is the most rewarding part of my job to attain knowledge. This was a fun course, and I appreciate it, Hank Sensei. Now time to do a 2 week/ 6 episodes a day refresher before bio and A&P. You guys are awesome. Thank you. Keep it up.

[@beirirangu]

you mixed up the charts in 5:18 and 5:26 CH₂O₂+O₂→6CO₂+6H₂O+ENERGY C₆H₁₂O₆+6O₂→CO₂+H₂O+ENERGY

[@HeyLady2319]

I paused this video at 0:52 when he blinked and I... just... can't lol :'D

[@stevehawk2025]

Crashcourse physics!!!

[@MrRoboskippy]

Thanks for the great video Hank. I totally want a Professor Poliakoff shirt.

[@nolanthiessen895]

You can find it here: dftba.com/product/14y/The-Professor-Shirt

[@TheDanksNewGroove]

Periodic Table of Videos shirt ftw

[@jasperlai]

A set of 118 shirts would be awesome.

[@KuanTV]

wow. This informative. Thanks for the video.

[@alibossform4609]

video starts a 2:54 thank me later

[@Winter_Blood]

Yay! Just finished the whole series!

[@riqy45]

can you do crash course physics? i love it, if you can do that

[@stefaniak8875]

I wanted to learn about biogeochemical cycles and this was really helpful, thank you for delivering!

[@lofi-gurl]

Aw I was really hoping for physics. But psychology is interesting I guess..

[@ninjabreadgirl]

physics would've been awesome!!!!

[@mustyHead6]

are you alive....... just asking

[@ok3892]

LonelyStranger probably

[@Kocha04]

Thanks for all, Hank. Seriously!

[@ROBLOXowns]

I do want that periodic table...

[@millerfrances2441]

It explains clearly but wen it wil last longer it becomes boring.

[@Bskward]

Favorite chemistry episode! Great series, Hank. It may not have a lot of views now, but kids will use this resource for years and years to come. Also, as a 21 year old humanities grad student, this is accessible and interesting. DFTBA, homie.

[@rosiekr901]

speed 0.75 thank me later

[@Akwardtothemax]

this is exactly why understanding science is important.

[@leoliu6450]

I wish there was also Crash Course Computer Science and Crash Course Calculus

[@tanyay1073]

Yeah!! Computer Science 😁

[@katherinethomas3654]

There is now. Crash Course computer science.

[@rafayajmal1839]

There is now

[@elaineandjohn9599]

Nice shout out to Professor Poliakoff! And well done as usual Hank. Thank you.

[@trojan88tm]

yo Carbon i'ma let you finish and all but Oxygen is the best element of all time... ALL TIME!

[@flynnthetrashbin8274]

Lmao still funny 5 years later

[@ThirdHandTV]

I didn't know any chemistry before this channel but now I'm like a chem genius. World history next please!!!

[@nolanthiessen895]

Crashcourse already has a World History series.

[@ThirdHandTV]

***** Ah I see them now, thanks

[@DamKaKaDaNi]

Never stop caring, I like that ^^

[@alexindustries44]

Awesome man big inspiration, help a lot i didnt understand chemistry and i thought it was boring, now im excited. ill try to make a good use of this understanding to do a better world

[@voveve]

Why Psychology before Physics??!?!?!?!?

[@voveve]

Jonah Stalknecht But none of that channel has a beginning-to-end course on Physics!

[@dangerouslytalented]

probably because they know more about psychology than physics.

[@LanttuLoL]

Yea but crash course doesn't want to step on anyone's toes, besides there hasn't been many videos on psycology on youtube that I know of so I for one am eagerly expecting this.

[@Wafflical]

LanttuLoL Yeah, I wonder what happened to PsyPhile

[@Pattersonian]

Hank has stated that he doesn't feel he knows enough about physics to teach it yet.

[@leylabekmyradova6049]

Thank you so much for all the educational videos you share, they are really amazing!

[@tomtomed1]

Will there ever be crash course maths?

[@thedominomaster101]

Or crash course physics

[@ronniedark]

thedominomaster101 www.khanacademy.org/ Try it out, its free and it's awesome :-)

[@thedominomaster101]

i have but its hard to do that while still having school and/or homework

[@NaderRaafat]

CRASH COURSE PSYCHOLOGY?!?!?!?!? :O :O That made my day! Heck no, my whole week!!!!!!!! Hank, you're awesome, I can't wait!

[@Jontman42]

The shirt.

[@mikewilkerson276]

Dear Thought Cafe, You guys do great work.

[@kendo512]

CH2O isn't a "thing"!? That's formaldehyde, sir!

[@xoom1712]

Well yes, but in that case CH2O is actually referring to glucose, as C12H6O12 is the molecular formula for it, while CH2O is the empirical formula for it.

[@mr0myster]

I guess the more adequate notation would have been (CH2O)n

[@kendo512]

Jason Brody Thanks, I'm aware - I was just being a pedant.

[@Buildologyy]

Jason Brody uhhhhh i think you mean glucose is C6H12O6

[@aronious291]

i think niyaz is right.

[@gephc4]

Thank you, Hank and the whole team! Chemistry was great, looking forward to Psych!

[@TonboIV]

Is that... Martyn Poliakoff?

[@aditigaur1409]

Really helpful! Have my test tommorow!

[@zezo69]

why did it end?

[@DaniRockandFire]

Yay! a psychology teacher that doesn't bore you to death!

[@RoscoeKane]

5:20 CH2O2 should be CH2O right?

[@roxcaz]

C6H12O6 + 6O2 --> 6H2O + 6CO2 + Energy

[@JoyLyte]

So excited for Crash Course Psychology!!!!

[@Kelse431]

PLEASE DO PHYSICS

[@aidanlam5336]

Please continue making more chem videos, there's so much more to talk about! Also make some hard maths ones (complex numbers, calculus, inverse trig etc.)

[@MozillaVulpix]

Why is this comment section full of climate change sceptics?

[@nustada]

Maybe because of all the morons who think there was a time when climate did not change.

[@tytube3001]

because they don't have a uni to go to

[@theultimatereductionist7592]

Because cuntservaturds hate hearing hard reality & hard necessary truths. They want to live in their fantasy bubble where there exist no consequences to anything, to any of their habits.

[@GlowingAlien]

I can't wait for Crash Course Psychology

[@olliethurlow5582]

He talks way too fast 😂😹

[@samhithginjupalli8752]

This is supposed to be a review and you can decrease the speed if you want.

[@linuxd]

That's why there's a rewind button. Lol

[@SWEm4rt1n]

Hurray for psychology! One of my favorite subjects!

[@chuchuchanson]

Is this actually interesting for anybody who understands this?

[@LordRaegune]

Sure! Why not?

[@garouHH]

While I haven't really learned anything new from this video, the whole topic of the carbon cycle and it being out of whack in recent centuries is not only interesting and fascinating to me, but also incredibly scary.

[@skaduskitai8721]

I thought the limestone factoid was interesting.

[@emile8197]

I study this kind of science in school. However, I like to watch it. It helps reinforce what I already knew. Haha

[@zurviver_3747]

yea, he just talks fast

[@kennyp23]

@tyler s...my information comes from the AR4 Working Group 1 technical documents of the IPCC. I have not worked my way through the whole AR 5 doc yet, but CO2 has a fixed heating value. It is not some zombie compound that makes bad things happen.

[@CookiesMsp]

he speaks so fast I sneezed and missed the whole cycle...

[@raw7504]

True

[@raw7504]

They should have an option to make him go slow

[@CookiesMsp]

xD ikr

[@thomasonefoot]

Set video to 0.5x speed

[@Mr.Shiesty727]

Thank you guy's you guys got it all !

[@jiberish001]

While I love this channel, and mostly like this video, I'm finding it hard to actually 'like' the video. You failed to explain properly the different types of cycles and how their cyclical rates vary. Most importantly you failed to explain why this is important for the whole fossil fuel issue, being part of one cycle that does not naturally bleed into the other so quickly, as we are making it do. I feel that the way you lumped them together will lead people to believe that there is far less of a danger than is actually there. The relevant importance of this makes me very disappointed, Hank. >:(

[@planetweed]

Im stoked for the psychology courses (and yeah cool poliakoff shirt,it rocks)

[@Drilldowntofacts]

With that well said the solution to our ever increasing CO2 volumes is to raise more gardens and drive less. If we had more gardens we would drive less to the jobs because food would be our number 1 provision already taken care of right outside our doors within walking distance. PICK AND EAT! More trees means more O2 produced and more absorption of CO2.

[@gh0stmast3r]

also that martin poliakov t-shirt is BOSS!!!!

[@chewyshoey]

How pointless. Ending chemistry when you just barely covered any of O-chem.

[@nolanthiessen895]

These courses typically are aimed at grade 12 or first year university level. That's about as far as any of most grade school or intro level chemistry's in university went, so it made sense to stop there.

[@Kaihlik]

These are American AP courses so if you want to know what they cover and what topics they are going to cover in future then just Google AP courses.

[@Mobius14]

CRASH COURSE. Not Full Course. Go take an AP class if you want to know that stuff.

[@fmar105]

It's a general chemistry sequence. It basically covered (though in much less detail) my first year of chemistry at college.

[@vilmalapha7901]

YOU TALK TOO FAST THIS IS IMPOSSIBLE I GIVE UP

[@TheEnictobi]

Thank you. I love your show. You, Vsauce, CPGrey and others have totally replaced TV for me. Sooooo much better.

[@abbuk8477]

hi i am a fan have watched all your videos for bio chem and phys 5 times

[@nateweinand4209]

Another great series from Hank! You really did a great job explaining Chemistry and making me not want to run for the hills when the word is mentioned.

[@biancafaure6291]

You explained everything so well that I already feel ready for my test!

[@samusmaster64]

Thank you, Hank!

[@vickane721]

Excellent series. Thank you from a High School chemistry teacher.

[@aWhittyRanger]

My first CrashCourse. Amazing! I interpret climate change for a national park and this really helped improve my understanding of carbon.

[@Wearepricester]

Keep up the great work. I'll miss this series. If I ever have to fall back on teaching I'm going to copy you lol.