Is climate change man-made or natural? In this video, I discuss how we can tell the difference between human-induced climate change and natural climate change, specifically regarding the modern climate trend.

0:00 How do we know it’s us?
1:18 Timing is not a coincidence
2:01 Tracking how much C we burn
2:32 C isotope signatures don’t lie
6:28 Associated oxygen depletion
8:20 Models (not the kind you think)
9:31 ‘Small amount’ of C emissions = misleading

References:
Biogeochemistry: An Analysis of Global Change, 4th Ed. https://amzn.to/41CDHVz
NASA industrial revolution & CO2: https://science.nasa.gov/climate-chan...
NOAA climate change & CO2: https://www.climate.gov/news-features...
Graven et al., 2020: C isotopes of human emissions- https://doi.org/10.1029%2F2019GB006170
Harrington, 2018: C isotopes of human emissions-https://yaleclimateconnections.org/20...
Schmidtko et al., 2017: https://www.nature.com/articles/natur...
Richard Wolfson, 2007- Earth's Changing Climate:   / 2287989.earth_s_changing_climate  
Richard Wolfson, 2011- Energy, environment, and climate:
https://books.google.com/books?hl=en&...
C budget simulation: https://contrib.pbslearningmedia.org/...

GEO GIRL Website: https://www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, & donate to support the channel if you'd like!)

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Bamboo toilet paper: https://shrsl.com/3cvku
Bamboo paper towels: https://shrsl.com/3cvkw
Compostable tableware: https://shrsl.com/3cvkz
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Bamboo cutlery + straw! : https://shrsl.com/3cwfl
Eco-Friendly Tote (great for grocery shopping!): https://shrsl.com/3cwfp
Reusable straws + cleaning brushes (my fav!): https://shrsl.com/3cwft
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(Just click link, press get started, take the free C footprint quiz, then choose how much you want to reduce your footprint by donating to the C sequestration projects they're funding!)

Non-textbook books I recommend:
Oxygen by D. Canfield: https://amzn.to/3gffbCL
Brief history of Earth by A. Knoll: https://amzn.to/3w3hC1I
Life on young planet by A. Knoll: https://amzn.to/2RBMpny
Some assembly required by N. Shubin: https://amzn.to/3w1Ezm2
Your inner fish by N. Shubin: https://amzn.to/3cpw3Wb
Oxygen by N. Lane: https://amzn.to/3z4FgwZ
Alien Oceans by K. Hand: https://amzn.to/3clMx1l
Life's Engines: https://amzn.to/3w1Nhke

Tools I use as a geologist/teacher/student:
Geology field notebook: https://amzn.to/3lb6dJf
Geology rock hammer: https://amzn.to/3DZw8MA
Geological compass: https://amzn.to/3hfbdLu
Geological hand lens: https://amzn.to/3jXysM5
Camera: https://amzn.to/3l6fGRT
Carbon-neutral pencil bag: https://shrsl.com/3cvjv
Carbon-neutral backpack: https://shrsl.com/3cvkc

Disclaimer: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission, but there is no additional charge to you! Thank you for supporting my channel so I can continue to provide you with free content each week! And as always, let me know your topic suggestions in the comments down below!