Not exact matches
«That necessitates taking a flexible approach, where
possible: building for the half foot to 1.3 feet
of sea -
level rise that are likely by 2050, while plotting out options that will depend on what we learn in the next few decades and how
sea level rises beyond that.»
The report provides a range
of possible scenarios, from at least 1 foot
of global
sea -
level rise by 2100 to a worst - case rise that's 1.6 feet higher than a scenario in a key 2012 study that the report updates.
«From now on, continues Castelltort, we know that by calculating the ratio between 13C and 12C sampled in similar slope deposits close to continents, we can have an indication
of the
sea level, which means it's
possible to better predict the distribution
of sedimentary rocks in our subsurface.»
The
possible localised
sea level fall in the vicinity
of the melting Greenland and Antarctic ice sheets has an interesting...
Which
of the following
possible changes would, if it happened, do the most to raise
sea levels?
The claim
of a 270 - meter run up, which is a measure
of the elevation above
sea level a wave reaches on shore, is «certainly
possible,» says James Goff, a paleotsunami expert at University
of New South Wales, Sydney, in Australia.
You report that
sea -
level rises
of up to 5 metres are
possible within 300 years (4 July, p 28).
As part
of a large survey
of possible planet - hosting stars, Lovis and his colleagues used the powerful HARPS (for High Accuracy Radial - Velocity Planet Searcher) spectrograph at La Silla Observatory in Chile, 2,400 meters above
sea level, which can detect stellar motions with precisions
of less than one meter per second, roughly the walking speed
of a human being.
Some scientists suggest several meters
of sea level rise (more than 10 feet) is
possible.
A model
of a polar ice stream, and future
sea -
level rise due to
possible drastic retreat
of the West Antarctic ice sheet.
The model gives two potential outcomes: one where the contribution to
sea levels tails off to around 6 cm by 2200, and a second where it accelerates to around 50 cm, and a
possible maximum
of 72 cm.
«Up to 8.5 feet
of global
sea level rise is
possible by 2100» in a worst - case emissions scenario.
Rather, they tested a range
of potential values for key parameters
of their model and retained those consistent with the paleo -
sea level estimates, but they did not explore the full space
of possible values within their ranges.
Given that the West Antarctic Ice Sheet has a total
sea level equivalent
of 3.3 m1, with 1.5 m from Pine Island Glacier alone4, marine ice sheet collapse could be a significant challenge for future generations, with major changes in rates
of sea level rise being
possible within just the next couple
of hundred years.
Unfortunately, regular medical tests
of B12
levels in the blood can be often inaccurate not only because
of wrong norms, which are way too low, but also due to many different
possible factors such as high blood
levels of folic acid, presence
of pseudo forms
of B12 (analogues) in the blood (from dietary sources such as spirulina, nori,
sea vegetables, etc.) as they can give a falsely high reading
of B12 in the blood.
It is not
possible to see the whole size
of the wave from the beach, because the reef sucks it below
sea level.
The work is
possible by working in a community
level with a number
of collaborators including California Department
of Education, City
of Oxnard, Santa Barbara City Creeks Division, The Nature Conservancy, Channel Islands Marine Resource Institute, the Channel Islands Harbor Foundation, Santa Barbara Museum
of Natural History Ty Warner
Sea Center, and over 20 schools in 7 school districts along the Santa Barbara Channel region.
It really doesn't — with just paleo - climate to guide us and no quantification
possible of the implications
of CO2
levels approaching (or exceeding) Pliocene
levels (with ~ 20 meters
of sea level rise), the uncertainties grow much larger, and uncertainty is not our friend.
The dynamics
of large
of sheets is
of course a
possible unknown, but no one has yet be able to come up with a * mechanism * for 5 m
of sea level rise in 100 years given current ice sheet configurations.
As so much
of the GIS is grounded below
sea -
level, it seems to me that the key to any
possible catastrophic mass loss is the Jacobshavn effect: the ungrounding
of the marine front as the ice thins and becomes buoyant.
a base value
sea -
level rise
of 0.5 m relative to the 1980 — 1999 average be used, along with an assessment
of potential consequences from a range
of possible higher
sea -
level rise values.
If I read the some
of the conclusions in the latest report on Abrupt Climate Change from the US Climate Change Science Program http://www.climatescience.gov/Library/sap/sap3-4/final-report/default.htm, in particular Chapter 2, it would seem
possible to come up with multiple feet
of sea level rise due to the understanding
of ice dynamics.
An obvious question is how this acceleration can be
possible in light
of the satellite data showing
sea level falling over the last 2 years.
The quest for the «single figure» that shows anthropogeneic warming ignores the fact that (with the
possible major exception
of sea level) the direct impact
of climate change will vary between regions and climatic zones.
Over all, the pace
of sea -
level rise from the resulting ice loss doesn't go beyond about 1.5 feet per century, Dr. Pollard said in an interview, a far cry from what was thought
possible a couple
of decades ago.
You can find a map
of where it was here https://en.wikipedia.org/wiki/Beringia#/media/File:BeringiaMap-NPSgov.jpg The IPCC agrees that a rise
of one metre in
sea level is
possible by the end
of this century.
But their conclusions regarding an alarming rate
of sea level rise are at best
possible (and not plausible)....
Koenig's careful description
of the science and the uncertainty about what the future holds prompted a public spanking from the Center for American Progress climate blogger Joe Romm, who charged her with «scientific reticence» — alluding to NASA scientist James Hansen's paper criticizing
sea -
level researchers for being overly cautious in 2007 conclusions about the
possible rate
of sea rise in this century.
Here are some
possible choices — in order
of increasing sophistication: * All (or most) scientists agree (the principal Gore argument) * The 20th century is the warmest in 1000 years (the «hockeystick» argument) * Glaciers are melting,
sea ice is shrinking, polar bears are in danger, etc * Correlation — both CO2 and temperature are increasing * Sea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior of 20th century global temperature * Modeled and observed PATTERNS of temperature trends («fingerprints») of the past 30 years ag
sea ice is shrinking, polar bears are in danger, etc * Correlation — both CO2 and temperature are increasing *
Sea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior of 20th century global temperature * Modeled and observed PATTERNS of temperature trends («fingerprints») of the past 30 years ag
Sea levels are rising * Models using both natural and human forcing accurately reproduce the detailed behavior
of 20th century global temperature * Modeled and observed PATTERNS
of temperature trends («fingerprints»)
of the past 30 years agree
This will lead to more robust projections
of sea level rise than is currently
possible.
«They calculated how fast glaciers would have to flow in order to raise
sea level by a given number
of meters and then considered whether those flow rates were plausible or even physically
possible.
Killian claimed I said «nigel says say nothing to the public about
possible dangers
of rapid
sea level rise» when I said the complete opposite in two previous posts
The paper was was written by 17 prominent climate, ice and ocean scientists, led by James E. Hansen, the pioneering climatologist who since 2007 has argued that most
of his peers have been too reticent in their projections
of the
possible pace
of sea -
level rise in a warming world.
It is also
possible for cold climates to increase chemical weathering in some ways, by lowering
sea level to expose more land to erosion (though I'd guess this can also increase oxydation
of C in sediments) and by supplying more sediments via glacial erosion for chemical weathering (
of course, those sediments must make it to warmer conditions to make the process effective — downhill and downstream, or perhaps via pulsed ice ages -LRB-?)-RRB-.
In New Orleans, geophysical vulnerability is characterized by its below -
sea level, bowl - shaped location, its accelerating subsidence, rising
sea level, storm surges, and
possible increased frequency
of larger hurricanes from climate change.
What is clear is that uncontrolled emissions will very soon put us in range
of temperatures that have been unseen since the Eemian / Stage 5e period (about 120,000 years ago) when temperatures may have been a degree or so warmer than now but where
sea level was 4 to 6m higher (see this recent discussion the
possible sensitivities
of the ice sheets to warming and the large uncertainties involved).
I certainly don't think we'll melt all
of Antarctica or even Greenland, but we know from the paleo record very significant melting and
sea level rise are
possible once the warming epoch gets under way.
BTW: Timothy translated Dr. Hansen's
possible «several» meters
of potential
sea level rise as 5 meters.
Overall, the panel's reports have never focused much on research examining how humans respond (or fail to respond) to certain kinds
of risk, particularly «super wicked» problems such global warming, which is imbued with persistent uncertainty on key points (the pace
of sea -
level rise, the extent
of warming from a certain buildup
of greenhouse gases), dispersed and delayed risks, and a variegated menu
of possible responses.
James Hansen is even more «alarmistic» — the
sea level rise
of more than a 1 meter is quite well
possible, read here:
London, England (CNN)-- A
possible rise in
sea levels by 0.5 meters by 2050 could put at risk more than $ 28 trillion worth
of assets in the world's largest coastal cities, according to a report compiled for the insurance industry.
It is
possible, therefore, that the effects
of recent accelerations in climate change have not yet started to have a significant contribution to or impact on current
sea levels; but based on international scientific opinion, it is more a case
of when, rather than if.
Possible rise in
sea levels by 0.5 meters by 2050 could put at risk more than $ 28 trillion worth
of assets, report says
The risk facing humanity is that climate change could spiral out
of control and it will no longer be
possible to arrest trends such as ice melting and rising
sea level.
It is certainly
possible and may be likely for the polar ice sheets to disappear, causing
sea level rise (SLR)
of 22 + / - 10 metres over coming millennia.
INTERACTIVE MAP: Explore the hundreds
of US coastal communities that will face chronic inundation and
possible retreat as
sea levels rise.
And in the WWF site it says that we havn't got this kind
of warming for 10 000 years, so how is it
possible that coastal cities from 8000 years ago flooded on the coast lines from rising
sea levels.
The legislation, HB 819, actually represented a compromise over a previous draft
of the law, which mandated consideration
of a
possible 8 - inch
sea level rise, based solely upon historical patterns rather than climate change models.
DIVA is a global model to estimate impacts
of sea level rise on all coastal nations as well as the costs and benefits
of possible adaptation measures.
Our analysis combines published relationships between cumulative carbon emissions and warming, together with two
possible versions
of the relationship between warming and
sea level, to estimate global and regional
sea -
level commitments from different emissions totals.