«We conclude there has been no reduction
in the global warming trend of 0.15 (to) 0.20 ºC (per) decade that began in the late 1970s.»
BUT, one can and should still believe
in a global warming trend.
There are then at least three independent lines of evidence that confirm we are not dealing with a slowdown
in the global warming trend, but rather with progressive global warming with superimposed natural variability:
He seemed to hit his stride from 2008 through 2010, when those fighting efforts to cut greenhouse gas emissions were buoyed by email hacks, the Great Recession, the breakdown of climate talks in Copenhagen and a stutter - step
in the global warming trend.
It isn't a pause
in global warming trend (GT Warming) which you need more than 10 years (around 30 will do fine) but a drift from the trend (which CAN be seen in 10 years, if barely) that added to the trend which hasn't paused and gives an * appearance * of the climate (30 year) trend of having stopped.
We see that the graph selectively shows a part of the time series dominated by the well - known temporary «dip»
in the global warming trend, reaching a minimum around 1970.
What I would be interested in seeing is the change
in the global warming trend since 1975.
By utilizing questionable adjustments based on even more questionable assumptions, NOAA managed to produce an entirely fabricated increase
in the global warming trend from 1998 to 2012.
Needless to say, her servile puppet - scientists have performed that task since 2008, month - in and month - out, as the change
in the global warming trend exhibits (red is new trend; blue is old) in the adjacent chart.
From the University of Southampton: New study finds variations
in global warming trend are caused by oceans New research has shown that natural variations in global mean temperature are always forced by...
Don't you think in order to remove the effect of oscillation
in the global warming trend you need to consider the longest period possible?
WebHubTelescope: You have to wonder why the Stadium Wave team ignores this correlation — is it because they realize it reduces the uncertainty
in the global warming trend?
You have to wonder why the Stadium Wave team ignores this correlation — is it because they realize it reduces the uncertainty
in the global warming trend?
The statistics say that since 1970, there has been no change
in the global warming trend, and all the fluctuations in short term rates of change are due to noise.
Scientists said the deep freeze gripping the U.S. does not indicate a halt or reversal
in global warming trends, either.
There is no evidence * whatsoever * of even a slow - down
in the global warming trend, in fact it's still accelerating.
Not exact matches
But hurricanes are also influenced and steered by massive
global trends in weather that are hard to predict: The
warming or cooling of waters
in the Pacific (El Niño and La Niña) and patterns like the Madden - Julian oscillation (an eastward - moving weather system that circles the globe every month or so and makes thunderstorms more likely) all play a role.
They estimate that, across about 60 % of the
global vegetated area, greening has buffered
warming by about 14 %; for the remaining areas, which mostly include boreal zones, LAI
trends have amplified the raise
in air temperatures, leading to an additional
warming of about 10 %.
«Until 2001, the region was not experiencing a
warming trend,» said Walter Andriuzzi, lead author of the study and a postdoctoral researcher
in the Department of Biology and School of
Global Environmental Sustainability.
They found no significant
trends, but when they put the data into computer models and simulated a rise
in temperature — as predicted through
global warming — the results were striking.
While a strong El Niño provided a boost to
global temperatures last year, the main driver of the planet's temperature surge, as well as other climate
trends, is the
warming caused by the buildup of greenhouse gases
in the atmosphere.
A slow - down
in global warming is not a sign that climate change is ending, but a natural blip
in an otherwise long - term upwards
trend, research shows.
This year has already brought higher temperatures than normal nation - wide, and that
trend is expected to continue,
in part due to
global warming which is caused by rising concentrations of greenhouse gases
in the atmosphere.
Land - use changes
in the United States, such as the conversion of undeveloped land to housing or agricultural use, appear to be contributing to
global warming trends to a much greater degree than scientists previously thought.
In its annual analysis of trends in global carbon dioxide emissions, the Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial level
In its annual analysis of
trends in global carbon dioxide emissions, the Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial level
in global carbon dioxide emissions, the Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial l
global carbon dioxide emissions, the
Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial l
Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep
global average warming less than 2 °C above pre-industrial l
global average
warming less than 2 °C above pre-industrial levels.
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.
By comparing the small oscillations
in cosmic ray rate and temperature with the overall
trends in both since 1955, Sloan and Wolfendale found that less than 14 percent of the
global warming seen during this period could have been caused by solar activity.
DUMBING DOWN
In search of a global explanation for our cranial downsizing, some scientists have pointed to a warming trend in the earth's climate that also began 20,000 years ag
In search of a
global explanation for our cranial downsizing, some scientists have pointed to a
warming trend in the earth's climate that also began 20,000 years ag
in the earth's climate that also began 20,000 years ago.
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.
The findings show a slight but notable increase
in that average temperature, putting a dent
in the idea that
global warming has slowed over the past 15 years, a
trend highlighted
in the most recent Intergovernmental Panel on Climate Change report.
The new numbers will be used
in models created by economists, environmentalists, and governments who use population estimates to predict pollution and
global warming levels; prepare for epidemics; determine road, school, and other infrastructure requirements; and forecast worldwide economic
trends.
A great deal of the confusion surrounding the issue of temperature
trends in the upper troposphere comes from the mistaken belief that the presence or lack of amplification of surface
warming in the upper troposphere has some bearing on the attribution of
global warming to man - made causes.
The
trend in these responses changed course last year, with slightly fewer Americans saying
global warming would have a significant effect
in their lifetimes.
A study relating to this — «Our study confirms many changes seen
in upper Arctic Ocean circulation
in the 1990s were mostly decadal
in nature, rather than
trends caused by
global warming,» said Morison.
Global warming is a long term
trend in rising temperatures around the world.
Dr. Benestad's reasoning is based on the erroneous assumption that if there are no significant
trends in some proxies for the solar activity since 1950s the sun is not contributing to the
global warming.
In the last 35 years of
global warming, the sun has shown a slight cooling
trend.
These records show both the influence of the long - term
trend in global warming — caused by the continued release of heat - trapping greenhouse gases into the atmosphere — as well as an exceptionally strong El Niño that is altering weather around the world.
The shrinkage of the Martian South Polar Cap is almost certainly a regional climate change, and is not any indication of
global warming trends in the Martian atmosphere.
For example, the borehole data show
warming since about 1500 AD which clearly was not anthropogenic, and
in the latest decade, since the very
warm 1998, the temperature
trend is downward even
in the Hadley Center compilations; the most ardent supporters of anthropogenic
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.
Incidentally, as I see it, your reconstruction of Manns data showing the 15th century to be
warmer than now is even more damming than Manns original construct, as it indicates a gradual decline
in global temperatures until 1850, before human influence reversed that
trend.
This NASA analysis highlights that the recent lull
in surface temperatures is simply the result of natural variability superimposed upon the
global warming trend - the cool phase of a cool /
warm oscillation.
Note
in particular the close correlation after 1980 during the modern
global warming trend.
This animation shows how the same temperature data (green) that is used to determine the long - term
global surface air
warming trend of 0.16 °C per decade (red) can be used inappropriately to «cherrypick» short time periods that show a cooling
trend simply because the endpoints are carefully chosen and the
trend is dominated by short - term noise
in the data (blue steps).
Rather sensitivity be tested today, when disappearing ice is compelling, especially when some like Pielke call for end of
Global warming since 2002, when
in fact it never stops, despite GT short time span
trends.
The
trend is one of the hallmarks of
global warming and tightly tied with the rise
in human CO2 emissions.
While rising CO2 is driving the ongoing
global warming trend, variations
in that
trend are causing impacts on plants and ecosystems, which themselves affect the CO2 rise.
This means that when modern
global warming trend began
in the 1970's, the correlation between sun and climate broke down.
The decreasing
trend in global snow cover and widespread melting of glaciers is consistent with a widespread
warming.