(Roughly) Daily

(Roughy) Daily has looked before at that most common– and essential– of substances, sand. (See here,  here, and here.) Today, via Michaela Büsse, an update…

After water, sand is the second most used material in the world. Each year, approximately 40-50 billion metric tons of sand are consumed worldwide.

This accounts for 79% of all aggregates extracted and traded, making sand the literal foundation for global human infrastructure. Sand plays a vital role in the production of glass, steel, and concrete. Silica, one of the most common minerals found in sand, is the key ingredient in silicon chips and thus for the development of digital technologies. But sand is also fundamental to the creation and maintenance of land itself, rendering it constitutive to processes of urbanization. Artificial islands, port expansions, and beach nourishment projects consume vast quantities of sand. As the bedrock of urban infrastructures, sand is embedded in the very fabric of modern life. Yet, its ubiquity belies its complexity. As a sediment, sand is foundational for the functioning of ecosystems. The relentless expansion and intensification of cities is starving rivers and coasts of sediment, depleting sand at a rate that far exceeds its natural replenishment.

Intensive dredging of rivers and seabeds has fundamentally altered sedimentation patterns, disrupting the delicate equilibrium that governs ecosystems. Rivers, which once carried sand from mountains to coastlines, now struggle to replenish beaches and wetlands. This depletion has far-reaching consequences. Without sufficient sand deposits, coastlines are left vulnerable to erosion, rising sea levels, and the devastating impact of extreme weather events. In ecosystems already on the front lines of climate change—like deltas, wetlands, and estuaries—the effects of sand extraction are compounded. Delta regions, for instance, rely on continuous sediment deposits to counteract the natural sinking of land. When sand is removed faster than it can be replaced, these regions are exposed to subsidence, where land sinks at an accelerated rate, amplifying flood risk and increasing the salinization of freshwater resources. Such impacts are often delayed, manifesting years or even decades after extraction, making them challenging to monitor and mitigate effectively.

As global sand consumption surges to unprecedented heights, the profound and far-reaching consequences of extraction come sharply into focus. Numerous journalistic and scientific accounts warn of the “looming tragedy of the sand commons,” highlighting environmental concerns related to dredging and mining sand, such as pollution, biodiversity loss, and soil disturbance, as well as illegal practices in the sand trade. The reality of the sand trade is both dirty and messy, intertwining national and transnational politics. In regions like Southeast Asia, rapid urbanization and investments in large-scale infrastructure projects have spurred an unprecedented demand for this essential resource. Here, land reclamation has emerged as a flashpoint where extraction practices intersect with issues of sovereignty, livelihoods, and environmental justice, transforming sand into a highly sought-after and contested commodity. Building new land for some means taking old land from others. The exploitation of sand goes hand in hand with exploitative labor and geopolitical maneuvering.

Sand’s impending scarcity has fueled a black market, giving rise to “sand mafias”—criminal organizations that exploit extraction and trade through corruption, violence, and intimidation, often circumventing national mining and export bans. It is not uncommon for sand to become a matter of life and death for those who mine it as well as for those who seek to prevent it from being mined. Across the world, activists and local communities have mobilized against sand extraction and land reclamation, fighting the prevailing narratives of development and progress that often justify environmental exploitation. However, these initiatives are rarely successful, resulting (at best) in compensation payments to the affected communities. A transboundary governance of sand would require international standards, which many researchers and organizations have requested. Even so, it is nearly impossible to control the natural flow of sand.

As sand transitions from a sediment to a precious resource, it has become instrumental in urban ideals of late modernity. Cities like Dubai and Singapore epitomize how architectural ambitions is built on vast quantities of imported sand. Land built from scratch, towering skyscrapers, and sprawling infrastructure are testaments to sand’s transformative potential. Yet, these urban landscapes are haunted by their materiality: each grain is a silent witness to the ecological and social disruptions that enabled its journey. The sand in these structures embodies the persistence of environmental degradation, displaced labor, and the exploitation that made them possible. In this way, sand is both an architect and a specter of modernity’s unrestrained ambitions, leaving us to confront the shadows cast by our own constructions…

Eminently worth reading in full: “Granular Power: The Gritty Politics of Sand,” from @michaelabussey.bsky.social and @eflux.bsky.social.

* Jorge Luis Borges

###

As we get grainy, we might send insightful birthday greetings to James Hansen; he was born on this date in 1941. An atmospheric physicist, he was Director of the NASA Goddard Institute for Space Studies (from 1981-2013). He is best known for his (June, 1988) testimony to the Senate Energy and Natural Resources Committee that there was 99% certainty the cause of climate change was known with 99% certainty to be the buildup of carbon dioxide and other artificial gases in the atmosphere– helping raise broad awareness of global warming– and for his advocacy of action to avoid dangerous climate change. (Hansen has since proposed a revised explanation of global warming, where the 0.7°C global mean temperature increase of the last 100 years can be to some extent explained by the effect of greenhouse gases other than carbon dioxide (such as methane).

Currently the Director of the Program on Climate Science, Awareness and Solutions of the Earth Institute at Columbia University, he remains a climate activist.

source