Changes in sea level vary around the world and over time, because of the effects of ocean cycles, volcanic eruptions and other phenomena.
Not exact matches
Changes in three important quantities — global temperature,
sea level and snow cover
in the Northern Hemisphere — all show evidence of warming, although the details
vary.
Scientists used up - to - date fossil records and improved analytical tools to find that,
in the few million years prior to the asteroid impact that created the Yucatan's Chicxulub crater
in Mexico, Earth was experiencing a major transformation
in its environment, including widespread volcanic activity,
changing sea levels and
varying temperatures.
From recent instrumental observations alone we are therefore unable to predict whether mass loss from these ice sheets will
vary linearly with
changes in the rate of
sea -
level rise, or if a non-linear response is more likely.
As
in the past,
sea level change in the future will not be geographically uniform, with regional
sea level change varying within about ± 0.15 m of the mean
in a typical model projection.
«Many of the events that made 2012 such an interesting year are part of the long - term trends we see
in a
changing and
varying climate — carbon
levels are climbing,
sea levels are rising, Arctic
sea ice is melting, and our planet as a whole is becoming a warmer place,» said Acting NOAA Administrator Kathryn D. Sullivan, Ph.D. «This annual report is well - researched, well - respected, and well - used; it is a superb example of the timely, actionable climate information that people need from NOAA to help prepare for extremes
in our ever -
changing environment.»
Tolstoy attributes this not only to the
varying sea level, but to closely related
changes in earth's orbit.
While
sea level has
varied greatly
in the past, it has generally
changed slowly, over many thousands of years — except when ice sheets collapse.
We have this stall
in temperature rise; we have the failure of all the models to predict results across all latitudes at once; we have
sea level changes that don't match the predicted results; we have wildly
varying predictions from different models indicating fundamental disagreement among the AGW hypothesis proponents.