Errorless Global Mean Sea Level Rise

Brief Comment by Kip Hansen   Have you ever noticed that whenever NASA or NOAA presents a graph of satellite-era Global Mean Sea Level rise, there are no error bars?  There are no Confidence Intervals?  There is no Uncertainty Range?   In a previous essay on SLR, I annotated the graph at the left to show…

NOAA — Straight Talk on Sea Level Rise

Guest Essay by Kip Hansen   The National Oceanic and Atmospheric Administration has some rather useful features on its web site. One of these is the Tides and Currents which is part of its Center for Operational Oceanographic Products and Services.  Having spent most of the current century living at sea,  with my wife and…

Sea Level to Rise by 1.2 Metres by 2300 – So What?

Guest essay by Andi Cockroft Firstly let me say that I am not one of the most technical writers you will see here. I regard myself pretty much as a layman despite studying Geology, Mathematics and Computer Science at University. So you won’t find all the references to papers (well not many), nor exact scientific…

Claim: Global Sea Level Rise is Accelerating

There’s been a lot of buzz about this new paper from Nerem et al (see link in references below) where they claim to find global sea level rise acceleration over the past 25 years. I provide this article from NASA Earth Observatory for context for some posts that are coming later. Adjustments to data figure…