Alaskan Blob Is an Algae Bloom
Bryan Gividen writes "Time.com is running a story on the previously unidentified blob floating off of the coast of Alaska. The article states that the blob is an algae bloom — far less sinister (or exciting) than any The Thing or The Blob comparison that was jokingly made. From the article: '"It's sort of like a swimming pool that hasn't been cleaned in a while." The blob, Konar said, is a microalgae made up of 'billions and billions of individuals.'"
Till it dies off .. then we might get another dead zone.
When algal blooms die off, oxygen is used to decompose the algae which creates hypoxic conditions.
http://en.wikipedia.org/wiki/Dead_zone_(ecology)
Ofcourse I didn't RTFA... maybe this isn't a harmfull kind.