Sentences with phrase «observed global average temperatures»

The black line shows the actual observed global average temperatures.

Comparison of Met Office forecast and observed global average temperatures.

The result is that the model then also reproduces the observed global average temperature history with great accuracy.

Not exact matches

To be more specific, the models project that over the next 20 years, for a range of plausible emissions, the global temperature will increase at an average rate of about 0.2 degree C per decade, close to the observed rate over the past 30 years.

(«Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.»)

(1) The warm sea surface temperatures are not just some short - term anomaly but are part of a long - term observed warming trend, in which ocean temperatures off the US east coast are warming faster than global average temperatures.

Third, using a «semi-empirical» statistical model calibrated to the relationship between temperature and global sea - level change over the last 2000 years, we find that, in alternative histories in which the 20th century did not exceed the average temperature over 500-1800 CE, global sea - level rise in the 20th century would (with > 95 % probability) have been less than 51 % of its observed value.

The highest temperature anomalies (more than 5 °C / 9 °F above the 1981 — 2010 average) were observed across much of northern Eurasia and eastern North America, driving much the global record warmth.

«It is thus extremely likely (> 95 % probability) that the greenhouse gas induced warming since the mid-twentieth century was larger than the observed rise in global average temperatures, and extremely likely that anthropogenic forcings were by far the dominant cause of warming.

[2] According to the Intergovernmental Panel on Climate Change (IPCC), most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in human greenhouse gas concentrations.

Yet to say that «Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic GHG concentrations», science must «very likely» know everything important about the subject.

It is extremely likely that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together.

AR4: Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.

AR5: It is extremely likely that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together.

Item 8 could be confusing in having so many messages: «It is extremely likely that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas... The best estimate of the human - induced contribution to warming is similar to the observed warming over this period....

The net effect of these anomalous winds is a cooling in the 2012 global average surface air temperature of 0.1 — 0.2 °C, which can account for much of the hiatus in surface warming observed since 2001.

Global warming is the observed century - scale rise in the average temperature of Earth's climate system.

It is extremely likely * that human activities have caused more than half of the observed increase in global average surface temperature since the 1950s.

Milloy further claims that the observed global warming of 0.6 - 0.8 C over the 20th Century is «well within the natural variation in average global temperature, which in the case of the Arctic, for example, is a range of about 3 degrees Centigrade».

Recognizes that warming of the climate system is unequivocal and that most of the observed increase in global average temperatures since the mid twentieth century is very likely due to the increase in anthropogenic greenhouse gas concentrations, as assessed by the Intergovernmental Panel for Climate Change in its Fourth Assessment Report;

The C.R.U. is only one of several groups who are analyzing the long term global average surface temperature trends drawing from mostly the same raw observed data.

When the IPCC claimed that the GCM models (with GHG forcing included) could replicate the observed changes in global average temperatures do you know if they were referring to a truly global measurement or were they just using the US temp record?

In the entirely subjective opinion of a particular group of IPCC authors, it's «extremely likely» (95 % certain) that «more than half of the observed increase in global average surface temperature from 1951 to 2010» was caused by human - generated greenhouse gas emissions (see the bottom of p. 13 here).

In 2013, the Intergovernmental Panel on Climate Change Fifth Assessment Report stated a clear expert consensus that: «It is extremely likely [defined as 95 - 100 % certainty] that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic [human - caused] increase in greenhouse gas concentrations and other anthropogenic forcings together.»

The statement in IPCC with which you take issue was «Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations» so it's not 20 years either.

Figure 6: Easterbrook's two global temperature projections A (green) and B (blue) vs. the IPCC TAR simple model projection tuned to seven global climate models for emissions scenario A2 (the closest scenario to reality thus far)(red) and observed global surface temperature change (the average of NASA GISS, NOAA, and HadCRUT4)(black) over the period 2000 through 2011.

In «panel a» there appears to be quite a bit of agreement between modeled and observed global temperature from 1861 to the present and thus this seems to provide compelling visual support for climate models» ability to simulate / project global average temperature in the future.

Global average temperature (in degrees C) relative to 1961 - 90 average, for observed (1996 - 2014), provisional (2015) and forecast (2016) years.

This paper examines in detail the statement in the 2007 IPCC Fourth Assessment Report that «Most of the observed increase in global average temperatures since the mid-twentieth century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations».

If you read it closely, you will see that there is nothing in the NASA link you cited that refutes the observed fact that global average surface temperature has stopped warming since 2001 or 1998.

It seemsthe observed increase in trade winds lead to the surfacing of cooler waters in the Eastern Pacific ocean and this phenomenon is found by models to cause global average temperatures to cool.

The IPCC statement that most of the observed increase in global average temperature since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations» is very much dependent on what weighting was given to natural (mainly solar) forcing over this period.

These conclusions are contrary to the IPCC [2007] statement: «[M] ost of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.

The IPCC has a confidence level > 90 % that less than 50 % of the observed increase in global average temperatures since the mid-20th century is the result of non-anthropogenic external forcings and internal natural variability within the climate system.

Thus: Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.

The striking consistency between the time series of observed average global temperature observations and simulated values with both natural and anthropogenic forcing (Figure 9.5) was instrumental in convincing me (and presumably others) of the IPCC's attribution argument.

This backs up the IPCC attribution statement «It is extremely likely [95 percent confidence] more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together.»

Again IPCC attribution statement: «It is extremely likely [95 percent confidence] more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together.»

Observed (black) and predicted (blue) global average annual surface temperature difference relative to 1981 - 2010.

Climate computer models falsely assume that plant - fertilizing carbon dioxide drives climate change... and predict average global temperatures a full 1 degree F higher than have actually been observed by satellites and weather balloons, a gap that is widening every year.

Temporary slowdown in global average surface temperature warming observed between 1998 and 2013 represented a redistribution of energy within the Earth system, new research shows.

Judith, re your issue «Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.»

As professional scientists, from students to senior professors, we uphold the findings of the IPCC Fourth Assessment Report, which concludes that «Warming of the climate system is unequivocal» and that «Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations».

Mike: Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.»

(1) According to the summary, there is a greater than 90 percent likelihood that increased concentrations of man - made heat - trapping gases caused most of the observed increase in global average temperatures since 1950.

There are a number of papers by Samuel S. Shen looking at the design of observing networks for estimating spherical harmonics with idealised surface temperature distributions, but I'm not aware of the technique having been used to reconstruct global average temperature using the real distribution of stations and data.

A new study of the temporary slowdown in the global average surface temperature warming trend observed between 1998 and 2013 concludes the phenomenon represented a redistribution of energy within the Earth system, with Earth's ocean absorbing the extra heat.

Climate computer models falsely assume that plant - fertilizing carbon dioxide drives climate change... and predict average global temperatures a full 1º F higher than have actually been observed by satellites and weather balloons, a gap that is widening every year.

The observed trend of 0.07 deg C per decade for the latest 15 year period is BELOW IPCC's «suggested global average temperature increases between about 0.15 °C and 0.3 °C per decade».

IPCC claims to know this (as expressed in its attribution statement regarding «most of the observed increase in global average temperature since the mid-20th century...»), but as our hostess and others have pointed out, there is much too much uncertainty regarding natural factors to make such an assessment with any degree of certainty.