The team investigated the trajectories of
sea ice drifting in the ocean and saw a pattern of
ice — and hence water — flowing
northward from the vast northern coast of Russia toward the middle of the Arctic Ocean, where the radium concentrations had increased.
You can experience 41 days of conditions around the North Pole in 44 seconds, thanks to the web cams left behind by an international research team (funded by the National Science Foundation) that annually ventures
northward to install and retrieve instruments on and under the
drifting sea ice at the top of the world.