This short video shows how glaciers advance during the summer melt season.
Let’s see how the media tries to twist this. They already scream that the glaciers are receding because of anthropogenic (human-caused) global warming. Will they use this to show that advancing glaciers are also proof of man-made global warming? How nice to have it both ways.
During the summer melt season, melt water accumulates in undulations on the surface of the Greenland ice sheet. Eventually, these melt lakes drain through crevasses or moulins (tunnels under the ice sheet surface), delivering water to the bottom of the ice sheet. This melt water lubricates the interface between the ice and the bedrock, causing the ice to flow faster toward the sea during summer. As summer melt increases and more melt water is available, the greater its effect on summer ice sheet flow rates.
Credit: NASA/Goddard Space Flight Center Conceptual Image Lab
If the above video doesn’t work, you can also see it here:
Thanks to RLF for this link