We can't say how much Earth will
warm over the coming years unless we know how much more greenhouse gas will end up in the atmosphere
A failure to appreciate the role clouds play in regulating the Earth's temperature means that a significant number of climate change predictions underestimate the likely extent of global
warming over the coming years, scientists have claimed.
Not exact matches
This sounds like a
warmed -
over thousand points of light crap George HW Bush
came out with many
years ago.
The researchers detected a «significant regional flux» of methane, a greenhouse gas with about 30 times the
warming potential of carbon dioxide
over a 100 -
year period,
coming from an area of gas wells in southwestern Pennsylvania.
China's stated aim of improving air quality
over the
coming years would change this radiative forcing, leading to a rather counter-intuitive consequence; the increase in China's contribution to global
warming.
With
warmer temperatures will
come more floods like the ones that have buffeted Australia
over the past
year, but the other half of the climate equation is making itself abundantly felt as well.
The sum of these efforts in developing countries will reduce growth in
warming emissions by billions of metric tons of
warming gases per
year over the
coming decade.
[Response: it would be odd to worry about cooling in 10,000
years time, when we have
warming over the
coming century to worry about first.
This
year fits into the long - term trend of global
warming with more hot
years set to
come over the next decade or two.
The last five summers have meant starting completely
over when it
came to my
warm weather wardrobe (something I wear 75 % of the
year here in Austin).
Not only am I obsessing
over the large pockets and hood, but the ultra soft and thick fabric is definitely going to keep me both
warm and comfortable for
years to
come.
That Williams has
come to develop a
warm - «n - fuzzy screen persona
over the
years works wonders for the character; not only does it make his loneliness palpable and relatable, it makes his inevitable eruption all the more shocking to behold.
[Response: it would be odd to worry about cooling in 10,000
years time, when we have
warming over the
coming century to worry about first.
The disagreement
comes only
over Berkeley Earth's use of a simple model fitting the temperature record for the past 250
years to human CO2 emissions and volcanoes to conclude that the best explanation for the observed
warming is greenhouse gas emissions.
The earth has had significant Global
Warming for some 20,000 years now... The only real argument is to the degree that mans activity has augmented that... We just came out of one - point - five - million years of continuous glaciation with sheets of two mile thick ice down past the 44th parallel... I will cheerfully deal with warming issues over that, any
Warming for some 20,000
years now... The only real argument is to the degree that mans activity has augmented that... We just
came out of one - point - five - million
years of continuous glaciation with sheets of two mile thick ice down past the 44th parallel... I will cheerfully deal with
warming issues over that, any
warming issues
over that, any day...
Given the arrogance I have seen
over the
years coming from Universities, and which I am afraid I see regularly on this blog only tends to confirm the mild, but increasing scepticism I have developed towards Climate Change — aka global
warming.
But
over the last few
years, glaciologists and climate scientists have
come to better understand how ice - sheets are likely to respond to a
warming globe.
There's actually, Caltech scientists just
came out in June of this
year, and said more people,
over population may save the earth from global
warming.
Over the five
years or so that I have been writing articles based on historical records I have
come to suspect that the 30
year period commencing 1710 was around as
warm as today.
The news that 2005 was the
warmest year ever recorded in Australia
comes at the end of a
year in which, to the extent that facts can settle anything, the debate
over human - caused global
warming has been settled.
Despite the paucity of proof for past climate claims, the third IPCC report says that «new evidence» makes it likely that «most of the
warming observed
over the last 50
years»
comes from the human production of greenhouse gases.
I no doubt that enough feedbacks have kicked in that we could cease all human carbon emissions today, and
over the next 50
years we would still see the Earth
warm to more than 2C as it
comes to thermodynamic equilibrium with the forcing from 400 ppmv CO2 and all feedbacks.
As new fuel economy and global
warming emissions standards are phased in
over the
coming years, however, we anticipate seeing progress in that pollutant segment too.
Besides, there is also a possibility that the Gulf Stream could even increase in temperature
over years to
come — adding a cumulative effect to continued atmospheric
warming.
Within hours of the announcement by scientists in the US that 2017 was at least the third
warmest year recorded, if not the second,
over the Earth's land and oceans, there
comes a further revelation: 2017 was also the
warmest year on record for the global oceans.
The red line with yellow range represents the
warming to
come over the next 90
years in one of the more moderate IPCC business - as - usual emissions scenarios (A1B - rapid global economic growth with a balanced emphasis on all energy sources).
It should
come as no surprise that the models did overestimate the
warming of the sea surface temperatures of the tropical oceans
over the past 30
years.
Few here realize that the IPWP has been gaining energy and expanding for the past 60 +
years, or that what is considered as anomalous warmth in the Pacific used to define the
comings and goings of El Nino's has been constantly revised upwards
over the past several decades to account for the continuously
warming ocean.
My whole point is that we're been
coming out of an ice age for 18,000
years, so the probability that we're in a
warming spell would seem to be
over 50 % at present (climate is always either
warming or cooling).
The climate
warming Chicken Little's of today have had their dire 20 +
year old predictions fail to
come to fruition
over and
over again.
Fortunately, we live in a
warm interglacial (the Holocene), but unfortunately the regular occurrence of epic glaciations
over the last 1.8 million
years indicates another one is
coming.
So, what if we use the statistics BEFORE the last 50
years to
come up with a model of temperature variability, and then see if that statistical model can «predict» the strong
warming over the most recent 50
year period?
Global
warming is a prediction
come true: it was predicted well
over 100
years ago that increasing the levels of CO2 in the atmosphere would raise the Earth's temperature.
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.
Even if we limit
warming to 1.5 °C, as a number of low - lying island nations recently called for, sea levels will rise by two meters in
coming centuries — with one meter rise by 2100 and up to five meters
over the next 300
years.
A mass migration that began almost 3.5 million
years ago is set to resume
over the
coming years as the Arctic Ocean continues to
warm.
Of course at the time, Callendar couldn't foresee just how much fossil fuels we would be burning
over the next 75
years and what kind of negative effects this could have (these realisations would
come later), so he believed that the anthropogenic
warming from the greenhouse effect would be beneficial, concluding in his paper:
This ocean acidification hypothesis, as it has
come to be known, has gained great momentum in recent
years, because it offers a second independent reason to regulate fossil fuel emissions in addition to that provided by concerns
over traditional global
warming.
Now, with the caveat that Latif claims no «skill» in any forecast after 2015 — a caveat the media and deniers never print — as you can see, their model suggests we'll see pretty damn rapid
warming in the
coming decade, just as the Hadley Center did in a 2007 Science piece and just as the US Naval Research Lab and NASA recently predicted (see «Another major study predicts rapid
warming over next few
years «'' nearly 0.3 °F by 2014 «-RRB-.
Steve S beats me to it, but here's a Myles Allen quote anyway: I have argued for
years that the odds on a high climate sensitivity are largely irrelevant to the
warming we should expect
over the
coming century, and I certainly never suggested to David that my assessment of the odds on any particular level of
warming by 2100 had changed.
Now, it may be that along with this longer interglacial
comes the idea that
over shorter timescales (of, say, 10000 or 20000
years) we would actually expect some a little
warming although I haven't heard this case made... and would expect that any such effect would be quite modest.
Though perhaps not the only culprit, global
warming has intensified these trends and will likely make life in these western states more difficult
over the
coming years as its effects continue to worsen.
Yet the heat - induced disaster may
come as little surprise to Russian climate scientists, who have warned for
years that the country is experiencing rapid
warming that will only accelerate
over the course of the 21st century.