Sentences with phrase «term average global temperature»

The second is that the long - term average global temperature is rising.

Not exact matches

WHEREAS, in furtherance of the united effort to address the effects of climate change, in 2015 the 21st Session of the Conference of the Parties to the UNFCC met in Paris, France and entered into a historic agreement in which 195 nations, including the United States, were signatories and agreed to determine their own target contribution to mitigate climate change by holding the increase in the global average temperature to well below 2 °C above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5 °C above pre-industrial levels, among other terms (the «Paris Agreement»);

The document cites a goal of holding the global rise in average global temperatures to 2 ºC but does not specify a long - term goal for reducing emissions.

What's more, there are several long - term records of global annual average surface temperatures.

In the latter half of the decade, La Niña conditions persisted in the eastern and central tropical Pacific, keeping global surface temperatures about 0.1 degree C colder than average — a small effect compared with long - term global warming but a substantial one over a decade.

In scenarios in which the average global temperature rises less than 2 degrees above pre-industrial levels, short - term measures to reduce SLCF had only a minor effect on the long - term rise in temperature.

Of course, while short - term changes in sea level can be predicted fairly accurately based on the motions of the moon and sun, it is a lot harder predicting the ups and downs of the average global surface temperature — there is a lot of noise, or natural variation, in the system.

«The long - term baseline temperature is about three tens of a degree (C) warmer than it was when the big El Niño of 1997 - 1998 began, and that event set the one - month record with an average global temperature that was 0.66 C (almost 1.2 degrees F) warmer than normal in April 1998.»

While 2014 temperatures continue the planet's long - term warming trend, scientists still expect to see year - to - year fluctuations in average global temperature caused by phenomena such as El Niño or La Niña.

January through August of 1998 are all in the 14 warmest months in the satellite record, and that El Niño started when global temperatures were somewhat chilled; the global average temperature in May 1997 was 0.14 C (about 0.25 degrees F) cooler than the long - term seasonal norm for May.

Phenomena such as El Niño or La Niña, which warm or cool the tropical Pacific Ocean, can contribute to short - term variations in global average temperature.

So the report notes that the current «pause» in new global average temperature records since 1998 — a year that saw the second strongest El Nino on record and shattered warming records — does not reflect the long - term trend and may be explained by the oceans absorbing the majority of the extra heat trapped by greenhouse gases as well as the cooling contributions of volcanic eruptions.

(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.

To remove short - term noise, they plotted a 12 month running average of Global Tropospheric Temperature Anomaly (GTTA, the light grey line) and the Southern Oscillation Index (SOI, the black line).

Even though these are the same areas that tend to have above average temperatures during El Niño winters, this pattern is also consistent with the long - term trend we are seeing with global warming.

Ray, I think Lee Grable's point is important: The fact that we use the term «global temperature» to mean the average temperature on a two - dimensional surface rather than the three - dimensional ocean plus land plus atmosphere system of the earth has the potential to allow confusion.

Current theory says there will steady increase in average global temperatures over the longer term (30 + years).

Their release for this last year came in pretty accurate: «Global temperature for 2008 is expected to be 0.37 °C above the long - term (1961 - 1990) average of 14.0 °C, the coolest year since 2000» (here).

Since global average surface temperature exhibits a long - term sinusoidal trend, one can display either a positive or negative trend with careful start and end point choices.

Narrowly scoped, the present situation is either strictly caused by solar variations (in which case I believe the «solar variation» crowd will inappropriately gain credibility over the next 10 to 20 years as we work through the next below average solar cycle or two), or strictly caused by CO2 concentrations (in which case I believe the «CO2 concentrations» crowd will inappropriately lose credibility as the non-linear relationship (sensitivity is based on doublings, not linear increases) between increased CO2 concentrations, and forecasts for below average solar cycles reduces the longer term upward trend in global temperatures).

* Global temperature for 2007 is expected to be 0.54 °C above the long - term (1961 - 1990) average of 14.0 °C; * There is a 60 % probability that 2007 will be as warm or warmer than the current warmest year (1998 was +0.52 °C above the long - term 1961 - 1990 average).

The addition says many climate models typically look at short term, rapid factors when calculating the Earth's climate sensitivity, which is defined as the average global temperature increase brought about by a doubling of CO2 in the atmosphere.

> in average global temperatures over the longer term (30 + years).

We can not afford to delay further action to tackle climate change if the long - term target of limiting the global average temperature increase to 2 °C, as analysed in the 450 Scenario, is to be achieved at reasonable cost.

In terms of how we are altering the climate, it is these sudden transitions that we need to understand, rather than focus so much of our resources on assessments of the global averaged temperature trend.

Using monthly - averaged global satellite records from the International Satellite Cloud Climatology Project (ISCCP [5]-RRB- and the MODerate Resolution Imaging Spectroradiometer (MODIS) in conjunction with Sea Surface Temperature (SST) data from the National Oceanic and Atmospheric (NOAA) extended and reconstructed SST (ERSST) dataset [7] we have examined the reliability of long - term cloud measurements.

The efficacy of a forcing is the climate sensitivity (in terms of global average surface temperature change per unit global average RF) of that forcing relative to a standard type of forcing.

(PS we are considering the climate sensitivity to be in terms of changes in global - time average surface temperature per unit global - time average radiative forcing, though one could also define other sensitivities for other measures of climate).

Given the decadal averages and the issue of what is meant by «the next» decade, Romm does have a point that the result of the paper could more clearly be described as representing «a period of flat global mean temperatures extending somewhat into the coming decade, following by a very rapid rise in temperature leaving the planet on its long - term trend line by 2030.»

The scientific community has also known for some time that the predicted future global warming in most climate models (more than 2 degrees C.) would probably be well above the long - term average temperature present at any time during the Holocene.

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.

«The average global temperature anomaly for combined land and ocean surfaces for July (based on preliminary data) was 1.1 degrees F (0.6 degrees C) above the 1880 - 2004 long - term mean.

The dominant driving force of «climate change» as the term is being used in public policy is «global warming», an average increase in global temperature.

In terms of the global average, temperatures were probably colder than present day (depending on estimates of latitude dependence and seasonality in response patterns).

Please note that I don't rule anything out («The terms global temperature and regional temperature will be used here to refer to some kind of averaged surface temperature for the globe or for a region.

Multiple independent analyses of long - term temperature records show average global temperatures rising as greenhouse gas concentrations have risen.

Note: The terms global temperature and regional temperature will be used here to refer to some kind of averaged surface temperature for the globe or for a region.

Though non-binding, some 100 heads of state gathered at the 2009 Copenhagen summit agreed to limit the rise in global temperatures to a maximum of 1.5 - 2C above the long - term average prior to the industrial revolution.

But even if this new trend continues, «it is not yet at a rate that would meet the long - term temperature goal of the Paris Agreement of holding the increase in the global average temperature to well below 3.6 °F (2 °C) above preindustrial levels.»

Then in 1987, Congress, recognizing that «man - made pollution — the release of carbon dioxide, chlorofluorocarbons, methane and other trace gases into the atmosphere — may be producing a long - term and substantial increase in the average temperature on Earth,» passed the Global Climate Protection Act.

The Kigali Amendment will significantly contribute to the goals contained in the Paris Agreement «to pursue efforts to limit the [average global] temperature increase to 1.5 ° Celsius» as well as directly support the decision within the Paris Agreement to enhance near - term mitigation.

Near - term projections of global average temperature, updated with latest global temperature observations and forecasts.

Although short term trends can be misleading, like the 22 year run up from 1976 to 1998, the dramatic drop of global average temperature in 2008 may be indicative of a change in character of the climate.

The Roadmap is based on the 2DS, limiting global average temperature increase to 2 degrees Celsius in the long - term.

The COP, by decision 1 / CP.17, noted with grave concern the significant gap between the aggregate effect of Parties» mitigation pledges in terms of global annual emissions of greenhouse gases by 2020 and aggregate emission pathways consistent with having a likely chance of holding the increase in global average temperature below 2 °C or 1.5 °C above pre-industrial levels.

Over both the short term (last 17 years) and long term (last 10,000 years) global average temperature has decreased or at best failed to warm.

Global average surface air temperature is one of the most well - recognized metrics of contemporary climate change — hence the term «global warming&rGlobal average surface air temperature is one of the most well - recognized metrics of contemporary climate change — hence the term «global warming&rglobal warming».

Guardian: Global temperatures are forecast to be 0.57 C above the long - term average next year, making 2013 one of the warmest years on record, the Met Office said on Thursday.

In all three separate major records of global temperatures (shown in the table on the right with the anomaly being °C above long - term average), the ten warmest years on record have all occurred since 1998.

«The global mean temperature for 2015 is expected to be between 0.52 C and 0.76 C above the long - term (1961 - 1990) average of 14.0 C, with a central estimate of 0.64 C.»