As Greenland’s Ice Sheet Melts, an Island Town Rises

Exploring the Changing Seascape of Greenland

In the remote town of Aasiaat, located on an island off the western coast of Greenland, a team of researchers from Columbia University’s Lamont-Doherty Earth Observatory has been conducting studies on how sea levels may evolve in the coming decades. Their findings, which diverge from the global trend of rising sea levels, are crucial for the local communities that rely on these waters for their livelihood.

Aasiaat, known for its aquaculture industry, is situated near the coastline where the Greenland ice sheet meets the sea. Colorful houses from the colonial era dot the landscape, standing out against the icy backdrop. In winter, the town is covered in snow, while in summer, the rocky coast is exposed, and fishing boats line the harbors.

The nutrient-rich waters of Aasiaat harbor support a diverse marine ecosystem, attracting plankton, fish, seals, whales, and seabirds. The archipelago’s islands and bays serve as breeding grounds for marine mammals and seabirds, offering a glimpse of the rich biodiversity that thrives in these waters.

While global sea levels are on the rise, Greenland presents a unique scenario where the land is actually rising due to the melting ice. As the ice melts, the pressure on the Earth’s crust eases, causing the land to gradually rebound. This phenomenon, known as isostatic rebound, has implications for the surrounding ocean as well, affecting sea levels locally and globally.

The researchers are studying the bathymetry of Greenland’s coastal waters to provide a clearer picture of how the changing seascape will impact the community. As sea levels drop, coastal channels become shallower, potentially disrupting marine life and posing challenges for navigation.

The collaboration between scientists and the local community is vital in preparing for these changes. By making bathymetry data accessible and engaging in meaningful conversations, the researchers aim to help the community adapt to the rising land and falling sea levels.

As Greenland experiences a different sea-level rise compared to the rest of the world, the focus is on communicating actionable insights to regions facing unique challenges. By bridging science with community needs, researchers are striving to ensure a sustainable future for coastal communities worldwide.

The study of Greenland’s changing seascape not only sheds light on the impact of climate change but also underscores the importance of local adaptation and resilience. As we navigate a rapidly changing world, understanding and addressing the specific needs of communities like Aasiaat are essential for building a more sustainable future for all.