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Sand is used everywhere: from glass to asphalt, sand is a key ingredient for all sorts of materials in construction and technology. But this heavy reliance on sand means that we’re also reaching a limit on this seemingly infinite resource—and it's also in demand by... criminals? Learn more with Hank in this new episode of SciShow! SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Jb Taishoff, Bd_Tmprd, Harrison Mills, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Sam Buck, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, charles george, Alex Hackman, Chris Peters, Kevin Bealer ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.unenvironment.org/news-and-stories/press-release/rising-demand-sand-calls-resource-governance https://geology.com/stories/13/sand/ https://www.newyorker.com/magazine/2017/05/29/the-world-is-running-out-of-sand https://oceanservice.noaa.gov/facts/sand.html https://www.bbc.com/future/article/20191108-why-the-world-is-running-out-of-sand https://www.sciencemag.org/news/2019/05/world-needs-get-serious-about-managing-sand-says-un-report# https://www.rsc.org/images/Construction_tcm18-114530.pdf https://www.hakaimagazine.com/features/sand-mine/ https://vaasphalt.org/asphalt-facts/why-choose-asphalt-2/#:~:text=There%20are%20more%20than%202.2,be%20America's%20pavement%20of%20choice https://na.unep.net/geas/getUNEPPageWithArticleIDScript.php?article_id=110 https://www.theverge.com/2016/11/17/13660014/miami-beach-sand-erosion-nourishment-climate-change http://beachnourishment.wcu.edu/ https://amti.csis.org/island-tracker/china/#Other%20Features https://www.americangeosciences.org/critical-issues/faq/what-frac-sand https://wedocs.unep.org/bitstream/handle/20.500.11822/28163/SandSust.pdf?sequence=1&isAllowed=y https://www.sciencedirect.com/science/article/abs/pii/S0025326X19303868#s0005 https://www.smithsonianmag.com/science-nature/world-facing-global-sand-crisis-180964815/ https://www.sciencemag.org/news/2019/05/world-needs-get-serious-about-managing-sand-says-un-report# https://journals.sagepub.com/doi/10.1177/1477370816649627 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456819/ https://www.nature.com/articles/s43247-020-0001-2.pdf https://www.nature.com/articles/s41893-018-0218-6 https://www.sciencedirect.com/science/article/abs/pii/S0950061816313927 https://www.nytimes.com/2020/08/11/business/concrete-cement-manufacturing-green-emissions.html https://www.researchgate.net/publication/45267909_Recycled_Concrete_as_Aggregate_for_Structural_Concrete_Production https://eos.org/articles/sand-from-greenlands-melting-ice-sheet-could-bring-in-business https://www.nature.com/articles/s41893-018-0218-6 https://www.pri.org/stories/2018-07-19/concrete-production-uses-ton-sand-and-emits-lot-carbon-here-are-some-greener https://www.nature.com/articles/s41598-018-24630-6 https://www.gatesnotes.com/about-bill-gates/concrete-in-china Image Sources: https://bit.ly/3njLWk6 https://bit.ly/3pzbhbI https://bit.ly/3pskL8G https://bit.ly/36tK29z https://bit.ly/35qxrVp https://bit.ly/3nkYbg9 https://bit.ly/3eV6rkb https://bit.ly/2GUP5qP https://bit.ly/2JSTfk7 https://bit.ly/3krXCiA https://bit.ly/36uqwd7 https://bit.ly/38Gx1fA https://bit.ly/3pny5uP https://bit.ly/2UjqPC1 https://bit.ly/2UqyQos https://bit.ly/2UA90ih https://bit.ly/3pn32iI https://bit.ly/3lrvX2B https://bit.ly/35szxnU https://bit.ly/3kqDkq2 https://bit.ly/3eSd8U3 https://bit.ly/3neLXWc https://bit.ly/36oCYuM https://bit.ly/36vt6zB https://bit.ly/3eSqU94 https://bit.ly/32FOAsj https://bit.ly/2JVRd2I https://bit.ly/3poXUe0 https://bit.ly/3kqDygS https://bit.ly/3eTHpli https://bit.ly/36uQiOu https://bit.ly/35rONkN https://bit.ly/32GgOTY https://bit.ly/36vtttZ https://bit.ly/3neMBmA https://bit.ly/32Dy2kX https://bit.ly/2UoW2U9 https://bit.ly/36ur9U1 https://bit.ly/35qJr9y https://bit.ly/35qBH7x https://bit.ly/3kscm1c https://bit.ly/3eUoNS3 https://bit.ly/2IuB83w https://bit.ly/2Ujrp2F The World Is Built on Sand... and We're Running Out