I am afraid that they might take the hippie approach that talks a lot of negatives of nuclear energy but do not extend the same criticism to wind and solar. This unfortunately has been a common trend.
They won't. Certainly not in any honest fashion. They need the supposed problem to be as acute as possible, and are not interested in any mitigating tech. It's about the Benjamins, and that's all.
I think the really critical point is that the global temperature has never changed this quickly before. Ever. It is completely unprecedented. That's scary.
@@rommelb497 I saw one video that mentioned buoys/measurement devices in the water. That might have been for measuring ocean temperatures. Apparently they used to measure the temperature from ships. For past climate changes, they can use ice core samples. I’m not sure what approach they use for times before the ice formed though.
And you are thinking that because something changes quickly that makes it anthropogenic. Tsunamies develop fairly quickly in certain regions-does that make it anthropogenic. Actually for the record, since weather records began till the present, the accepted figure for the global incline in temp was 1.6. That's a small number.
I learned this all over 10 years ago back in college and I'm a little shocked that Crash Course has taken this long to make this series... better late than never I guess;) Regardless, EXCELLENT work!!! 👍👍
I am so extremely excited for this series! I only wish it had been published a year or two ago when I was still earning my degree haha. I can already tell this would have been one of the most useful resources I could have had, so I hope others utilize it. Looking forward to seeing what topics you cover!
New things I learned today: While most scientists are merely people who study or have expert knowledge of one or more of the natural or physical sciences, good scientists nerd out about stuff. Great video.
As someone from a place which has been facing and will face far more serious consequences of climate change while also having a relatively far low carbon footprint as compared to the leading nations and superpowers and economic beasts of this world, I highly appreciate the new series.
They included a complete list of sources for the whole series in the description: docs.google.com/document/u/0/d/1rRJ-L9TLNfPwPfzn3LdjDEw-wHtThwTfDUe2rDtFXQQ/mobilebasic
It's called "Crash Course", so I'm betting it won't be "deep" enough for your liking. Luckily, there are a zillion sources on the internet you can easily look at.
Honestly some of the best content on RU-vid. Lets hope y'all address the lifestyle vs population false narrative. Its fully down to lifestyle. and i really hope yall do make sure to call out the different levels of input from differnt folks.
I'm not sure what you mean by life style but it implies that individuals must sacrifice income in order to reduce climate change. But deploying solar and wind for utilities, heat pumps for heating, and EVs for driving won't reduce income. Those are technology choices. We need to deploy existing solutions and find better technology for things that don't have cheap substitutes: aviation, shipping, cement, steel, battery backup for electric utilities (e.g. hydrogen extraction), beef substitutes, and direct CO2 extraction. How much consumption we must sacrifice depends on how well we develop and deploy these technologies.
Hi there, Crash Course! 😊👋🏼 Climate change is a wonderful addition to your informative RU-vid episodes. Thank you kindly for sharing topics important as this one with viewers like myself across RU-vid! 😁 Wonderful job to Em Jackson for executing this video professionally! 👏🏼
It's good to see that CrashCourse is finally making a series on climate change. And M pointed out some serious points: smaller countries (like St. Vincent and the Grenadines, my home) which are generally low carbon emitters, pays the price for the emissions of the larger countries. Increase in storms, hurricanes, serious infrastructural damage, droughts that affect crop yields and even death (13 people died in a freak storm on Christmas Eve 2013) and I can continue. As SIDS, we do not have the access to financing to adequately recover from these events or upgrade our infrastructure accordingly, as we are deemed middle-income countries. So we have to borrow more just to keep our countries afloat. While COP27 announced financing for smaller countries, no mention was made on decreasing emissions (as far as I can recall). So just some things to consider. Looking forward to the next one.
Public-private partnerships expedite the implementation of sustainable initiatives, pooling resources and expertise to amplify the impact of environmental conservation efforts.
1:50 "our habitable earth -- the only one out of the thousands of planets known in our galaxy where life like ours can survive" is misleading. More accurate might be "the only one out of all the planets in our galaxy where life like ours is known to exist." We haven't determined that none of the exoplanets discovered so far can support life like ours. Some of them may be supporting life like ours and we don't know it yet. It's almost CERTAIN that SOME exoplanets (perhaps not yet "known" i.e. discovered) can support life like ours. You are implying certainty that the answer to the Drake Equation is 1. That may not be exactly what you said if it's parsed legalistically, but it's what it sounded like.
Great introduction to climate! Definitely need to get into the carbon cycle to fully explain global warming. Hopefully they'll talk about the leading solutions as well: biochar, and direct capture.
Question regarding the relation between the the greenhouse effect, the increase in global average temperatures, and the increase in greenhouse gasses in the atmosphere. How sure can we be about correlation equating causation (that is, greenhouse gas emissions being the main driver in rising average temperatures) in this instance and why?
Earlier than that point, the video had already given a very oversimplified intro into how: Chemical components have different properties. If we change the chemistry of an atmosphere we change its properties. This was theorized for a very long time & first experimentally proven in the 19th century in various experiments including those around examining artificial micro-climates. With an increase in greenhouse gasses (here in the video the specific experiment mentioned was testing the properties of a CO2-rich atmosphere) heat trapping can be observed and we can continue to reproduce those effects. As someone with a geology background I can also tell you right now - and maybe the series will go into that in future episodes some more - that the rock under your feet would not make sense without chemistry working as it does. Things like glacial ice cores are one thing, but layers of rock & sediments are another climatic archive from which you can derive past climatic contexts among other things such as the earth's magnetism.
Just know... That even the temperature increases. Our planet will LIVE on. Life here will move on. We may become extinct with other animals on it. But this planet will go on. So. Tell me. Is it a climate crisis or is it a FUTURE LIVING crisis? A future living that we can still recognize today. We're on that precipice. You know that moment in human history before written language existed? We're in that now. Similarly that lifestyle change... Will be incomprehensible from what we know now.
@@Argacyan Thanks for the answer! But it doesn't answer my doubt( it's isn't about how the rise in greenhouse gasses ends in global warming, but how do we know that the rise in gases is the main reason for the change in average temperatures). Should have been more specific, changing my question! Thanks a lot!
@@Ront1313 In the most fundamental steps: 1, Earth is at thermal steady state in the sense that the same amount of energy absorbed from solar radiation is re-radiated back into space. 2, the radiation in is mainly in the visible and near infrared part of the spectrum, while the thermal radiation out is in the far infrared part of the spectrum. 3, without atmosphere the temperature would be some -10 -15 degree C. 4, The atmospheric gases, primarily H2O, CO2 and CH4, are heated by the IR-radiation it absorbs, and they re-radiate both up and out toward space and back down towards earth. When the amount of green-house gases increases the radiation escapes the atmosphere from a higher altitude. Due to the temperature structure in the atmosphere (neglecting the heated stratosphere for simplicity, which is OK at this scope) this leads to a higher temperature on the ground. 5, this radiation-transport is very well understood on this scale, the absorption characteristics of the gases are very well understood. 6, given that we have measurements of increased green-house gas concentrations we can robustly calculate how large temperature increase this leads to all other things equal. That is how we know.
I believe sun activity has been decreasing (sun activity meaning the amount of sunlight hitting Earth). If we hadn’t dug up all these fossil fuels, I wonder if it could have caused an ice age in the somewhat near future (through positive feedback loops). Interesting stuff.
I wish I could get a friend of mine to watch this series or at least even this single episode. While not a denier that things are changing he firmly believes (yes, from watching lots of Fox News) that humans have zero impact and therefore there's nothing we can do to change it. Quite the cop-out. He didn't take much of any science in school or college and is only business focused. Unfortunately taking responsibility for climate change has costs, but as this series will no doubt point out, NOT taking responsiblity also has costs. Though those costs will mostly be paid by future generations. I, me, everything, here, right now, screw everyone else and it makes no matter in the future when I'm dead is the life philosophy of far too many people. 😔
Most don't see a connection with Earth. Like we are separate. The truth is the Earth will be fine. We will not be. 10 minutes of this video is speculation on a history or future we will never know. Humans.... what are ya gonna do?
May the Anthropocene epoch make the Permian-Triassic extinction event seem like a minor footnote in the pages of Earth's history. Here's to making scenario SSP5-8.5 of the IPCC assessment a reality.
The definition just killed me in the very first minute of the video. It says "climate change" is purely artificial problem. I thought science deals with prediction of what nature is does?
It's odd how millions of years of temperature change (in the rocks and glaciers as she says) was done without humans but now it's only because of humans? explain?
they never say that the more co2 the bigger the atmophere become... they talk like co2 didnt creat the atmosphere .. the more co2 the bigger they atmosphere and once big enough it will cold done ...
How have I (as a fan of "kurzgesagt - in a nutshell") found out about this channel only two weeks ago ... this is good, important, entertaining - I love it.
This channel is utterly fantastic for this type of learning! Definitely worth picking any given topic they have here and diving right in! Biology, history, literature, and so much more and the quality is fantastic. :D
The only problem with climate change is the colossal amount of money it's going to cost to try and prevent something that we have little or no control over. A nice little earner for the mega greedy already invested in so called green energy. How does 415ppm co2 cause climate crisis when 6000ppm during the Cambrian period did not?
I am looking forward to the series. One factor I hope you also cover is how climate change choices are intertwined with other "crises" that people are also concerned about: Hunger, Information and Energy access, Plastic Pollution, Wildlife Preservation, Anti-Nuclear. Ex: Here in Oregon, there has been a push to eliminate disposable plastic bags (mostly) because waste and wildlife pretty much every other solution requires way more energy to produce than can ever be recovered. This is made worse because people that promote their priorities tend to ignore the consequences of their proposals.
Awesome start! Maybe I'd suggest reducing the pauses between sentences, it stretches the video and feels slow compared to other CrashCourse series. But I am looking forward to new episodes!
1:43 Point of clarification: the Earth is the only planet _that we know of_ that can support life. Of the thousands of other planets we’ve discovered, 55 have been determined to be _potentially_ habitable (as of March 2020.) The galaxy is estimated to contain billions (possibly trillions) of other planets, and we don’t yet have an idea how many of those could possibly support life.
I don't understand the connection between higher climate Temps and extreme weather. Weather is caused by temperature gradient, isn't it? If the entire planet is uniformly warmer, where is there a larger gradient coming from to cause more extreme weather?
I have to say after my two favorites crash course playlists (Astronomy and Geography), this one will be like the cherry on top!!! Thanks to the Crash Course team!!!!!😁
