404. That’s an error.

The requested URL /_/+1/confirm?hl=en&url=https://earthobservatory.nasa.gov/IOTD/view.php%3Fid=91716%26eocn=home%26eoci=iotd_previous%26src=share&title=Glaciers+in+the+Tropics,+but+Not+for+Long+:+Image+of+the+Day was not found on this server. That’s all we know.