Sentences with phrase «term average global warming»

For example, Fall et al. (2011) concluded that for all temperature stations classifications with regards to the influence of urban influences, the long - term average global warming trend is the same.

Not exact matches

So if you think of going in [a] warming direction of 2 degrees C compared to a cooling direction of 5 degrees C, one can say that we might be changing the Earth, you know, like 40 percent of the kind of change that went on between the Ice Age; and now are going back in time and so a 2 - degree change, which is about 4 degrees F on a global average, is going to be very significant in terms of change in the distribution of vegetation, change in the kind of climate zones in certain areas, wind patterns can change, so where rainfall happens is going to shift.

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.

«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.

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.

If long - term global warming is to be limited to a maximum of 2 °C elsius above preindustrial values, average annual per - capita emissions in industrialized nations will have to be reduced by around 80 - 95 % below 1990 levels by 2050.

* 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).

(Orbital forcing doesn't have much of a global annual average forcing, and it's even concievable that the sensitivity to orbital forcing as measured in terms of global averages and the long - term response (temporal scale of ice sheet response) might be approaching infinity or even be negative (if more sunlight is directed onto an ice sheet, the global average albedo might increase, but the ice sheet would be more likely to decay, with a global average albedo feedback that causes warming).

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.

Taking account of their historic responsibility, as well as the need to secure climate justice for the world's poorest and most vulnerable communities, developed countries must commit to legally binding and ambitious emission reduction targets consistent with limiting global average surface warming to well below 1.5 degrees Celsius above preindustrial levels and long - term stabilization of atmospheric greenhouse gas concentrations at well below below 350 p.p.m., and that to achieve this the agreement at COP15 U.N.F.C.C.C. should include a goal of peaking global emissions by 2015 with a sharp decline thereafter towards a global reduction of 85 percent by 2050,

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.

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.

So in terms of average global temperature what is the result of such warming?

I'm not for a moment suggesting this makes global warming go away, only it might slow the rate of change down - a bit - in the short term (perhaps the average transit time of deep currents).

The Paris Agreement's long - term goal is to limit global warming to 1.5 to 2.0 degrees Celsius (2.7 to 3.6 degrees Fahrenheit) above preindustrial temperatures, or about 0.5 to 1.0 degrees C (0.9 to 1.8 degrees F) above the current global average temperature.

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.

Climate change is the long - term average of a region's weather events lumped together.There are some effects of greenhouse gases and global warming: melting of ice caps, rising sea levels, change in climatic patterns, spread diseases, economic consequences, increased droughts and heat waves.

Like the Copenhagen Accord, the Cancun agreements set a goal of limiting average global warming to below 2 °C above pre-industrial levels, and call for periodic review to consider strengthening this long - term goal, including to 1.5 degrees.

Global warming and climate change are terms for the observed century - scale rise in the average temperature of the Earth's climate system and its related effects.

As the term implies, global warming is the gradual increase in the average temperature of the atmosphere and ocean due to human influences.

El Niño events can cause short - term spikes in average global temperatures, but they are not behind the long - term warming we've experienced over the past century.

Yah, it cools a bit, then it warms a bit, then it cools... as Dr Courtney reminds us, the classic averaging period to discern the long term climate signal is thirty years and over this period all the global temperature series show a warming trend in line with that predicted by AGW.

In short, the global climate models used in the IPCC reports have been very good at predicting the underlying human - caused global surface warming trend, beneath the short - term noise which will average out to zero over time.

That envelope is not just a matter of global - average surface temperature (to which the misleadingly innocuous term «global warming» applies) but of averages and extremes of hot and cold, wet and dry, snowpack and snowmelt, wind and storm tracks, and ocean currents and upwellings; and not just the magnitude and geographic distribution of all of these, but also the timing.

On the other hand, if it continues to fall but remains above the long - term average, that will clearly demonstrate the imprint of man - made global warming.

(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.

For example, a reported global value of +0.69 °C ± 0.09 °C indicates that the most likely value is 0.69 °C warmer than the long - term average, but, conservatively, one can be confident that it falls somewhere between 0.60 °C and 0.78 °C above the long - term average.

«Global Warming» can be much more accurately monitored in terms of an increase in the global annual average heat content measured in JGlobal Warming» can be much more accurately monitored in terms of an increase in the global annual average heat content measured in Jglobal annual average heat content measured in Joules.

There has not been shown to be a density variation of significance that correlates with average temperature variation (e.g, the recent high average temperature came from a small very hot area over the ocean and a small northern area, and more normal to even colder temperatures everywhere else, not global temperatures being warmer), and Solar activity has been shown to correlate very well with much of the long term (thousands of years time scale) global temperature trend.

Since 1976, every year including 2014 has had an average global temperature warmer than the long - term average.

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.

Although there might be «slowdowns and accelerations in warming lasting a decade or more,» they write, the clear long - term trend is «substantial increases in global average surface temperature and important changes in regional climate.»

Professor Phil Jones, Director of UEA's Climatic Research Unit, said, «The year began with a weak El Niño — the warmer relation of La Niña — and global temperatures well above the long - term average.

But now man knows that cloud cover mitigates warming from all sources (a negative feedback to Global Average Surface Temperature), while at the same time amplifying short term variations in solar radiation (a positive feedback to solar variability).