Summary: The world has been warming for the past two centuries, and the oceans have been rising for over ten millenia. The urgent task of climate scientists is to determine if these trends will accelerate, and if so by how much and when. Here we look at the history of rising seas, and what the new IPCC report warns us to expect. Rising seas are one of the most vivid and potentially most important of the climate changes expected during the 21st century.
Here are other posts in this series about second order draft (SOD) of the Fifth Assessment Report (AR5) by the Intergovernmental Panel on Climate Change (IPCC).
- The IPCC sees the pause in global warming!
- The IPCC gets better. Climate alarmists freak-out.
- IPCC says “It is likely that the sea level rise has accelerated”. The evidence is flimsy, showing a larger problem
And this from earlier reports: When did we start global warming? See the surprising answer (it’s not what you’ve been told).
- Long-term sea levels, based on proxy data
- The past century (direct measurements,
… moderately reliable)
- Recent (reliable direct measurement)
- IPCC forecasts of the future
- For More Information about rising sea levels
About measurements: one inch = 25 mm = 0.025 meter
In this series we look at the latest work of the IPCC to see what the news media have hidden from us about the results of climate scientists. The world has been warming for two centuries, as all agree. But so much else they’ve told us is not accurate. Mostly due to their exaggerations, misrepresentations and omissions of the IPCC’s work — and the peer-reviewed literature on which it rests.
As we see in the comments to previous posts, this produces odd situation — increasingly common in today’s New America, with its broken OODA loop — of well-educated people astonished to learn what climate scientists have said for many years — because during that time they’ve read quite different things in the news media. Show them the text, the data — and watch the resulting incredulous shock.
The same process will happen the Right, as those on they (eg, the Tea Party) learn they rely on sources that lie to them. The surprise 2012 election results might have started this process. The results of these collisions between facts and dogma will play a large role in determining the fate of 21st century America.
Now, let’s turn to the seas. First we’ll look at sea levels over various time horizons. Then we’ll look at the latest IPCC report.
(2) Long-term sea levels, based on proxy data
From “Sea-level fluctuations during the last glacial cycle“, M. Siddall et al, Nature, 19 June 2003 — Gated.
(3) The past century (direct measurements, more reliable)
From the EPA’s Climate Change Indicators page: