Sentences with phrase «cooling over periods of decades»

Not exact matches

Isn't it strange how six periods of cooling can add up to a clear warming trend over the last 4 decades?

Ocean temperatures experience interannual variability and over the past 3 decades of global warming have had several short periods of cooling.

«We show that the climate over the 21st century can and likely will produce periods of a decade or two where the globally averaged surface air temperature shows no trend or even slight cooling in the presence of longer - term warming,» the paper says, adding that, «It is easy to «cherry pick» a period to reinforce a point of view.»

As you can see, over periods of a few decades, modeled internal variability does not cause surface temperatures to change by more than 0.3 °C, and over longer periods, such as the entire 20th Century, its transient warming and cooling influences tend to average out, and internal variability does not cause long - term temperature trends.

In the Northern Hemisphere, they take the form of rapid warming episodes, typically in a matter of decades, each followed by gradual cooling over a longer period.

And yet over the entire period question containing these six cooling trends, the underlying trend is one of rapid global warming (0.27 °C per decade, according to the new Berkeley Earth Surface Temperature [BEST] dataset).

They find that, with an enlarged data set that has corrections for bias between drifting buoy data and data taken from ship intakes, as well as extended corrections for water cooling in buckets in the time between being drawn from the sea and being measured, there is a statistically significant warming trend of 0.086 °C per decade over the 1998 - 2012 period.

If one station is warming rapidly over a period of a decade a few kilometers from a number of stations that are cooling over the same period, the warming station is likely responding to localized effects (instrument changes, station moves, microsite changes, etc.) rather than a real climate signal.

The average of RSS and UAH monthly readings over that 51 month period is 0.1550 C. So, at the time of your comment, the current decade (Jan 2011 to Mar 2015) was actually 0.0464 degrees COOLER than the average of the previous decade.

Instead they point out that there have been regular periods of sea warming and cooling over recent decades without our involvement.

Ocean temperatures experience interannual variability and over the past 3 decades of global warming have had several short periods of cooling... Argo takes measurements in the top 2000 metres of the ocean.

Easterling and Wehner (2009) showed that «the climate over the 21st century can and likely will produce periods of a decade or two where the globally averaged surface air temperature shows no trend or even slight cooling in the presence of longer - term warming.»