Sentences with phrase «change over a long span of time»

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.

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.

«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.

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 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.

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.

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.