This is real, not some Globohomo climate change bullshit. The article skips the main information - the record shows that reliably - like clockwork - there is a major event every 700 years. The problem is that the record also shows repeated instances of an event at the half-way point around 350 years. These are the only times these sediment layer show up. The 700-year pattern is reliable but no one has figured out any pattern for when it happens at the middle of the cycle. The problem is that we are right now around one of those 350 year periods.
This is a reliable sediment record in multiple areas plus local history supporting it. The sediment record was found at the end of the 1990's. Oral history has been around since Europeans showed up - Indian tribes talk about places on the coast where they used to have villages and shit that got flooded.
BoozyB 0 points 2 hours ago
Yes, there is a risk, but I automatically ignore any story such as this one that mentions or blames global warming or rising sea levels.