5 Human Impacts on the Environment: Crash Course Ecology #10

Hank gives the rundown on the top five ways humans are negatively impacting the environment and having detrimental effects on the valuable ecosystem services which a healthy biosphere provides.

Table of Contents
Ecosystem Services 00:51
The Importance of Biodiversity 04:07
Deforestation 06:42
Desertification 06:49
Global Warming 07:59
Invasive Species 08:51
Overharvesting 09:20

Crash Course/SciShow videos referenced in this episode:

References:

Want to find Crash Course elsewhere on the internet?

[thetandlcorner]

_"Tina here. If you have no idea which one's are the 5. here!"_
Deforestation 5:37 -6:55
Desertification 6:56 -7:41
Global warming
7:42 - 8:44
Nonnative species
8:54 - 9:20
Overharvesting 9:21 - 9:42
_"If I am incorrect, tell me! Like if you want everyone else to see this!"_
EDIT: _"Guys I know it's in the description but not everyone checks that, so here it is in the comments."_

[Alyssa-wzmx]

Anyone else here 7 years later for online classes?

[NataliaSchenone]

wow this video has been up for 10 years, and we're living out everything he's explaining. At greater rates.

[bencorey]

Hey! Biology teacher here: I always enjoy your videos, Hank, but this series on Ecology has been my favorite! Your masters in Environmental Science shows through your passion.

[kai-zist]

mann this is awesome. I admire how passionate he is.

[Damouse]

The key is "few hundred thousand years."

As he says in the video, the things we have been doing and the things that are happening are taking place at an astoundingly fast pace.

[mjlock]

can we get a whole separate segment for environmental science?

[biamenezes]

This is an amazing video and I'll surely watch this again. The part when you show the deforestation in the Amazon rainforest was kinda sad to me, since the majority part is contained within my country.

[viptechies]

Imagine watching this again and realize that the Amazonian Forest is almost gone due to extreme wildfire. And imagine how many biodiversities were eradicated due to that phenomenon.

[LookForwardtoLifeHeisTheLife]

Thank you for this 'basic' education on the problems that we (humanity) have caused. WE ALL NEED this info to understand the problems and, their poss solutions. PLEASE keep up the good work ! Keep spreading the news and, assisting mother Earth in such ways. TY !

[highspacefox]

these last three are the best in the series!
thanks for all the work yall do @ crashcourse, love yall!

[savannahmeachum]

I enjoy crash course videos more than other videos when learning or reviewing for things that they also happen to cover

[Assasiinzz]

Its my Bio 4 exam on Friday and this show is so helpful for revision, im lucky to have it at the same time as my exams, thank you John and Hank

[a.t.akayoungdrew]

"Thank you for watching another kind of depressing video of crash course ecology." 😂

[josephmorgan]

Who else has to watch this for there biology class?

[Tornair]

I love these Ecology episodes! It reassures me that this is what I want to do with my life.

[ashleygonzalez]

Wow, this is such a great video. I learned that humans have caused so many problems to happen such as littering, cutting trees and etc. If we had to do what the environment does for us as of today it would take us longer and a lot more time. The ecosystems are a combination of old and new things that create the environment we are in as of today.

[mikem]

Lmao definitely another depressing yet entertaining and insightful episode of Crash Course. Thank you Hank!

[NoelMarshall]

Great Presentation, Thank You, please keep educating for all our sakes.

[talyah]

And in August 2019 this video becomes incredibly sad that 6 years on we watch the Amazon being burned due to agriculture and our obsession with consuming meat/animals. We never learn and therefore deserve the extinction we are bringing on.