Not exact matches
While the ideas are by no
means earth shattering, they are fundamental to driving the kind of
sea -
level change needed at Uber:
No
means of telling
while we remain at
sea -
level: the waves hide the horizon.
But the lost ice also
means lost gravity — and so
sea levels in the immediate vicinity of the ice sheets actually drop,
while ocean
levels half a world away are goosed.
In some regions, rates are up to several times the global
mean rise,
while in other regions
sea level is falling.
Paleontological records indicate that global
mean sea level is highly sensitive to temperature (7) and that ice sheets, the most important contributors to large - magnitude
sea -
level change, can respond to warming on century time scales (8),
while models suggest ice sheets require millennia to approach equilibrium (9).
A classic case in point was the discovery that field observations of the loss of arctic
sea ice showed that by 2007 it had advanced to a
level predicted by the
mean of models of that loss as occurring in the 2100s,
while that
mean was used as the consensus projection in AR4.
Scientists: Warming causes Antarctic ice sheet growth, and lower
sea levels By Kenneth Richard
While many scientists are projecting rapid
sea level rise as a result of a warmer Antarctica and consequent ice sheet melting, other scientists are projecting that the surface of the Antarctic ice sheet will gain in mass because a warmer Antarctica
means snow and ice accumulation will outpace the -LSB-...]
The worst - case result is that
mean ocean oxygen concentration falls to a low of about 68 % of pre-industrial
levels in the next few millennia,
while low - oxygen «dead zones» — which don't support fish or many other marine animals such as crabs and clams — spread nearly six-fold to cover 12.8 % of the
sea surface area.
While that's a small number, «Small changes in
sea levels in certain places
mean very big changes in the kind of protection of infrastructure that you need to have in place,» said Erik Ivins, a geophysicist at NASA's Jet Propulsion Laboratory in California and one of the contributors to Thursday's study.
The Dutch Ministry of Transport uses the figure 60 % (below high water
level during storms),
while others use 30 % (below
mean sea level).