meltwater funnels rock dust into Greenland’s glacial rivers, where Jon Hawkings and his colleagues took their samples. They found that Greenland’s rivers are much richer in phosphorus than previously believed. And they estimate that Greenland’s glacial rivers may flush some 400,000 tons of phosphorus into ocean waters every year—that’s on par with the amount of phosphorous dumped into the ocean by the Mississippi or Amazon rivers. The findings appear in the journal Global Biogeochemical Cycles.
— source scientificamerican.com