Looking at the satellite images side by side, itâs impossible to miss the difference. In one shot, Chinaâs largest freshwater lake brims with bright blue, while in the other, large swaths of dry lakebed appear where water once was. Traditionally, Poyang Lake swells during summer months, but in the summer of 2022, a prolonged heatwave and drought left it desperately parched. NASAâs images, taken about six weeks apart in July and August of that year, starkly capture the lakeâs descent to levels far below those typical for the season.
Itâs sobering sights like this that drive âPassage of Water,â South Korean artist Yiyun Kangâs new interactive art project that highlights how human-driven climate change and overuse are depleting Earthâs supply of freshwater, a vital but limited resource. The project can be viewed online at Googleâs Arts & Culture hub. Itâs also being presented at the COP28 climate conference, where itâs visible in Dubai Expo Cityâs Blue Zone as a large-scale wall and floor projection.
âArt can serve as an exceptional vehicle for fostering a deeper understanding of pressing issues,â Kang, a visiting lecturer at Londonâs Royal College of Art, said in an interview. âI also believe the role of art is particularly crucial in addressing highly complex issues like the climate crisis, which demand collective efforts from everyone.â
Kang spent a year as a Google artist in residence in the companyâs Heartbeat of the Earth program, which tasks artists with addressing the climate crisis. âHaving done some initial research into the topic of water, it became clear that there is not enough communication about this issue, and a general lack of awareness about it,â said Clare Brooks, program manager at the Google Arts & Culture lab.
Kang earned a doctorate in information experience design from Royal College of Art, and her background is evident in her rich digital landscape of expanding and contracting water droplets, intricate visualizations of NASA hydrology data and illustrations of potential solutions to the freshwater crisis so vivid they could be at home in a video game.
Scrolling around the online version of âPassage of Water,â haunting ambient music plays over Kangâs visual interpretations of data from two NASA Jet Propulsion Laboratory missions. GRACE (Gravity Recovery and Climate Experience) launched in 2002, flying two spacecraft in tandem to track the movement of freshwater around the planet for the last two decades. You can explore Earthâs freshwater supply over those 20 years through Kangâs swirling, spinning timeline of moving shapes. Blue represents gains, red indicates losses.
âWhile some of these changes are due to seasonal variability, the data clearly shows that human activity is dramatically altering our planet’s water cycle,â text above the timeline reads.
Freshwater makes up only 3.5% of the total volume of water on Earth, with the United Nations World Meteorological Organization predicting that up to 5 billion people globally will face shortages by 2050.
NASAâs SWOT (Surface Water and Ocean Topography) mission, which launched last year, has been surveying the worldâs oceans and terrestrial surface waters from orbit to chronicle how they shift over time and plan for changing water resources. Clicking on a map in âPassage of Waterâ takes you to visualizations of data SWOT has collected on rivers such as Alaskaâs Yukon, Pakistanâs Indus and the Nile in Egypt, where more frequent and severe heatwaves and drought, coupled with the fast-growing population, are increasing demand for freshwater.
âData does not speak for itself, but art does,â Kang said. âThat is why I was drawn to this project.â
But âPassage of Waterâ doesnât just educate about the freshwater crisis. Through simple, playful interactions, it invites viewers to discover possible solutions recommended by the Intergovernmental Panel on Climate Change, including seawater desalination and rainwater harvesting. âRainwater harvesting from roofs and other above-ground surfaces is a simple and inexpensive technology,â reads the section on antidotes. âThis technology requires little to no energy and relatively low investments, but provides huge benefits.â
The artworkâs soundscape, created with the help of an audio director, becomes noticeably more upbeat as viewers explore the solutions section. Fast-beating instrumental rhythms and lapping water replace the haunting melodies that accompany the alarming facts presented early in the experience.
Said Kang, “I wanted to share that there is still an opportunity if we strive together.”

