From last year, Kate MacMillin and Juliet Pinto reporting for WPBT2:
Tag Archives | Sea Level
New research underway indicates that at least three feet of global sea level rise is near certain, NASA scientists warned Wednesday.
That’s the higher range of the 1 to 3 feet level of rise the UN Intergovernmental Panel on Climate Change (IPCC) gave in its 2013 assessment.
Sea levels have already risen 3 inches on average since 1992, with some areas experiencing as much as a 9-inch rise.
“Given what we know now about how the ocean expands as it warms and how ice sheets and glaciers are adding water to the seas, it’s pretty certain we are locked into at least 3 feet of sea level rise, and probably more,” said Steve Nerem of the University of Colorado, Boulder, and lead of NASA’s interdisciplinary Sea Level Change Team. “But we don’t know whether it will happen within a century or somewhat longer.”
The Greenland ice sheet has contributed more greatly to sea level rise, losing an average of 303 gigatons of ice a year over the past decade, while the Antarctic ice sheet has lost an average of 118 gigatons a year.… Read the rest
Help, we’re sinking! And the worst part is, we’re on dry land… from the Center for Investigative Reporting:
… Read the rest
Pump too much groundwater and wells go dry – that’s obvious.
But there is another consequence that gets little attention as a hotter, drier planet turns increasingly to groundwater for life support.
So much water is being pumped out of the ground worldwide that it is contributing to global sea level rise, a phenomenon tied largely to warming temperatures and climate change.
It happens when water is hoisted out of the earth to irrigate crops and supply towns and cities, then finds its way via rivers and other pathways into the world’s oceans. Since 1900, some 4,500 cubic kilometers of groundwater around the world – enough to fill Lake Tahoe 30 times – have done just that.
“Long-term groundwater depletion represents a large transfer of water from the continents to the oceans,” Konikow wrote earlier this year in one article.
If you’re planning on being cryogenically frozen and then revived in the 22nd century, consider selling your apartment in Tokyo now. New Scientist writes:
… Read the rest
Sydney, Tokyo and Buenos Aires watch out. These cities will experience some of the greatest sea level rises by 2100, according to one of the most comprehensive predictions to date.
Sea levels have been rising for over 100 years – not evenly, though. Several processes are at work, says Mahé Perrette of the Potsdam Institute for Climate Impact Research in Germany. Some land is sinking, some is rising. The gravitational pull of disappearing ice sheets lead to a fall in sea levels in their surrounding areas.
Perrette has modeled all of these effects and calculated local sea level rises in 2100 for the entire planet. The global average rise is predicted to be between 30 and 106 centimeters. Coasts around the Indian Ocean will be hard hit, as will Japan, south-east Australia and Argentina.
For the first time in 6,000 years sea level is rising, causing the shoreline to move inland. The move will continue for at least 1,000 years. Unless we change the trend of the planet’s heat balance the pace of this movement will accelerate, with disastrous results. We are totally unprepared for this situation.
A week before superstorm Sandy hit New York City my new book High Tide On Main Street: Rising Sea Level and the Coming Coastal Crisis was released. In the book, I describe exactly such a storm hitting that location. The point of my description was to examine the factors that made New York City and the surrounding area particularly vulnerable.
With Sandy there were four things that combined to increase the impact. First there was incredible size of the storm with the unusual track of southeast to northwest. Second, it came at lunar high tide, which is about a foot higher than average; third, sea level has risen about a foot in height over the last century; fourth, the underwater topography off New York harbor amplified the storm surge.… Read the rest
Nick Bryant writes for the BBC:
… Read the rest
A new geological study has shown that many low-lying Pacific islands are growing, not sinking.
The islands of Tuvalu, Kiribati and the Federated States of Micronesia are among those which have grown, because of coral debris and sediment.
The study, featured in the magazine the New Scientist, predicts that the islands will still be there in 100 years’ time.
However it is still unsure whether many of them will be inhabitable.
In recent times, the inhabitants of many low-lying Pacific islands have come to fear their homelands being wiped off the map because of rising sea levels.
But this study of 27 islands over the last 60 years suggests that most have remained stable, while some have actually grown.
Using historical photographs and satellite imaging, the geologists found that 80% of the islands had either remained the same or got larger – in some cases, dramatically so.
Remember that Vanity Fair issue with all the photos of Manhattan partially submerged because of rising sea levels (example at right)? Well New York City is taking climate change seriously and has just issued the following press release detailing its preparations:
… Read the rest
New York City is establishing itself as a global leader in forming a proactive response to climate change, reveals a new report detailing the city’s plans to adapt to the challenges and opportunities the changing climate presents. The plans, revealed in the first report of the New York City Panel on Climate Change (NPCC) and published in the Annals of the New York Academy of Sciences, outline the measures the city will take to proactively respond to climate change in a way that will provide both long-term environmental, and short-term economic, benefits to the city.
“Cities are at the forefront of the battle against climate change. We are the source of approximately 80% of global greenhouse gas emissions.
From Ray Alex’s Website:
This is very disturbing. More and more things are happening that really shouldn’t. Is the 2012 events we are waiting for, starting already? The National Oceanic and Atmospheric Administration has a Tsunami station in event mode activated for Station 55023 – STB Coral Sea located at 14.803 S 153.585 E (14°48’9″ S 153°35’6″ E). The tsunami station has been in event mode since the large quakes occurred in the area for several days now. This is triggered by the buoys’ anomalies of water column height above the sea floor. If you do a data search for 2010 March 20th to 2010 April 13th you get this- Over 100 meters or 328 feet less distance from buoy to sea floor in 24 days! That’s 13 feet per day since the quakes. As you will see from the waves on the line graph it matches the tide lines perfectly…
[continues at Ray Alex’s Website]
More from the “no man-made climate change” gang at Fox News, whose Gene J. Koprowski counters reports that rising sea levels will soon drown Venice by profiling a scientist who says he’s got the data to prove that wrong:
… Read the rest
In a new scientific paper, Nils-Axel Morner, former emeritus head of the paleogeophysics and geodynamics department at Stockholm University in Sweden, says that observational records from around the world — locations like the Maldives, Bangladesh, India, Tuvalu and Vanuatu — show the sea level isn’t rising at all.
Morner’s research, revealed Monday at the fourth International Conference on Climate Change, demonstrates that there is no “alarming sea level rise” across the globe, and it says a U.N.