«Our research has showed that while the development of La Niña and El Niño events is chaotic and hard to predict, the strength of these events can
change over long time spans due to changes in the global climate,» said one of the paper's authors Dr Steven Phipps.
The evidence in favour of such a link is the observation that the ITCZ and other air circulation system components have
changed over those longer time spans.
Not exact matches
That is, there was no conscious attempt on the part of individual reptiles to seek such biological
changes, since a series of random genetic mutations (
over a sufficiently
long span of
time) took its natural course to achieve an environmentally adaptive bird - like species.
Future studies are needed to track
changes in free water
over longer time spans and in other brain regions and to determine what causes them.
The study is the first to use
long - term continuous water chemistry data to document hydrological
changes over an enormous geographic area and a
long time span.
Stable isotopic compositions — variants of particular chemical elements — of such remains, recovered from soil and lake sediment, may help us better understand climate
change over a
long span of
time.
For
long - term investors, this recent activity won't make too much noise, as little has
changed in the fundamentals of the precious metal
over a
long time span.
The
change illustrated is
over a far
longer time span, but it's striking in the graphic.
But
over that
long span of
time, the ways of measuring that data have
changed dramatically, and differences in data collection mean that temperatures collected by ships in the early 20th century might be different from the data collected today.
It is not necessary to have a theory that explains every twist and turn, it is sufficient to have a theory that
over a
long time span always makes predictions that are sufficiently accurate; or a theory that
over a
long time span always has correct bounds on the min and max temp
change..
If
over a
long period of
time that portion of the ocean accumulates heat, then the index (a statistic calculated from temperatures and pressures) running mean will
change over that
time span.
Tamino you stated: «There are lots of fluctuations and lots of dynamical processes, but
over the entire globe and
over long time spans it's the
changes in energy inputs that dominate the trend.
In general, climate
change is inevitable: the Sun's output is not perfectly constant; continents rise and fall
over long spans of
time; and the composition of the atmosphere shifts as carbon dioxide is outgassed from the Earth's interior, and its carbon is slowly recycled into living bodies, and eventually into new rock.