Using climate models to understand the physical processes that were at play during the glacial periods, the team were able to show that a gradual rise in CO2 strengthened the trade winds across Central America by inducing an El Nino -
like warming pattern with stronger warming in the East Pacific than the Western Atlantic.
Not exact matches
While no specific weather event
like this can be directly attributed to global
warming, it does fit the
pattern of increased hurricane activity overall since the 1970s, coinciding with a rise in sea temperature.
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 note past ages that have been equally
warm or
warmer without human influence, to say nothing of repeating
patterns of climate change
like ice ages (though I've met one of James Hansen's computer modelers who told me with sincere conviction that there would not be another ice age).
Same thing for other
patterns,
like the way high - latitude continents are
warming more than low - latitude ones are.
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.
The deepening of the Drake Passage resulted in a change in ocean circulation that resulted in
warm waters being directed northwards in circulation
patterns like those found in the Gulf Stream that currently
warms northwestern Europe.
The study stops short of attributing California's latest drought to changes in Arctic sea ice, partly because there are other phenomena that play a role,
like warm sea surface temperatures and changes to the Pacific Decadal Oscillation, an atmospheric climate
pattern that typically shifts every 20 to 30 years.
El Niño — a
warming of tropical Pacific Ocean waters that changes weather
patterns across the globe — causes forests to dry out as rainfall
patterns shift, and the occasional unusually strong «super» El Niños,
like the current one, have a bigger effect on CO2 levels in the atmosphere.
However, if one downweights these two events (either by eliminating or, as in Cane et al» 97, using a «robust» trend), then an argument can be made for a long - term
pattern which is in some respects more «La Nina» -
like, i.e. little
warming in the eastern and central equatorial Pacific, and far more
warming in the western equatorial Pacific and Indian oceans, associated with a strengthening, not weakening, of the negative equatorial Pacific zonal SST gradient.
When polar air dipping southward collides with rising
warm tropical air, the meet - up causes a powerful atmospheric wave with rollercoaster -
like patterns that propagate eastward around the globe.
Like a comfortable old sweatshirt to keep me
warm during a cold time, I slipped back into a
pattern of fad dieting that felt easy, safe and familiar.
I can't wait to pair it with a bolder
pattern like these shorts once it gets
warmer.
It feels
like this year I'll not see snowflakes for a long time: (I miss Russian winter with it's amazing white landscape, the sound of the snow under your boots, magical frosty
patterns on windows and
warm fur outfits!!!
I really
like my top: it's
warm, practical and quite good looking though it wouldn't have passed the RTW test: I mean that if I saw it in the shop for the price of the
pattern (# 12) plus fabric (1.5 m at # 4.50), I wouldn't have bought it.
I am loving blanket scarves, they are
warmer and definitely more attractive than the old knit ones... I
like the plaid
pattern on this one... have an awesome Thanksgiving day Amber xox
Students explore the global
pattern and identify regions most affected by global
warming, through a number of interactive resources produced by media services such as the BBC as well research organisation
like NASA and the IPCC.
They all offer interesting
patterns with arty names —
like the black - and - white «Vine,» or the
warm oranges and reds of «Nolita Stripe.»
Accents
like cream - colored walls, plush
patterned area rugs and stone and wood trim add to the
warm, welcoming ambience.
AC Hotels by Marriott feature lobbies containing a curated collection of inviting furnishings, modern
patterns and textures that feel museum -
like with a layered tone - on - tone color palette of
warm greys and soft charcoal accents that carries through to the guest rooms.
The atmospheric buildup of long - lived greenhouse gases is setting in motion centuries of shifts in climate
patterns, coastlines, water resources and ecosystems, he said — hardly a transformation one would describe with a gentle word
like warming.
What we * do * suggest is that the weakened poleward temperature gradient owing to the rapidly
warming Arctic relative to mid-latitudes (Arctic amplification) should increase the north - south component of the upper - level flow, making highly wavy jet - stream
patterns (
like the one this winter) more likely.
Natural, large - scale climate
patterns like the PDO and El Niño - La Niña are superimposed on global
warming caused by increasing concentrations of greenhouse gases and landscape changes
like deforestation.
My point is that I could easily see how the entire system in question could be
warming, but because of transient effects,
like weather
patterns, the additional heat energy could easily wind up not where we're measuring it for months or even years at a time.
However, if one downweights these two events (either by eliminating or, as in Cane et al» 97, using a «robust» trend), then an argument can be made for a long - term
pattern which is in some respects more «La Nina» -
like, i.e. little
warming in the eastern and central equatorial Pacific, and far more
warming in the western equatorial Pacific and Indian oceans, associated with a strengthening, not weakening, of the negative equatorial Pacific zonal SST gradient.
I tend to be more interested in the really big
patterns,
like the natural greenhouse effect keeping us
warmer & adding to it likely increases that warmth.
In the short video above, Dr. Alley explains how some
patterns in the changes that occur during Earth's ice ages and
warm intervals (
like the last 11,000 years) prove that greenhouse gases exert a
warming effect.
One way or another, expect a lot more stories
like Mr. Yiryel's in Africa, where demographers expect an additional one billion people by midcentury and science has revealed
patterns of withering drought, with or without global
warming.
OK - this is off topic and I know comments
like this invoke just the hysteria I don't want to incite from skeptics, but are the weather
patterns we are seeing in Iowa (intense precipitation) consistent with what one would expect from
warming predictions?
Some of the least understood impacts of
warming are the possible connections to health problems,
like patterns of tropical disease and the frequency of smoggy days, as the National Academies of Science concluded in 2001.
That bold statement may seem
like hyperbole, but there is now a very clear
pattern in the scientific evidence documenting that the earth is
warming, that
warming is due largely to human activity, that
warming is causing important changes in climate, and that rapid and potentially catastrophic changes in the near future are very possible.
El Niños
like this one have the ability to shift weather
patterns on a global basis and in general send a surge of extra heat into the atmosphere from the
warmer - than - normal tropical Pacific Ocean.
They found that northern hemisphere
warming and droughts between the years 950 and 1250 corresponded to an El Niño -
like state in the Pacific, which switched to a La Niña -
like pattern during a cold period between 1350 and 1900.
Like the climate scientists on RealClimate contend, Kolbert notes that no particular storm can be caused by global
warming, but that the long - term
patterns don't look good... increased greenhouse gases =
warmer oceans = more destructive hurricanes.
At first, all I was pointing out was my observation of a change in global weather
patterns around 2000 from a
warming mode back to those more
like the cooling mode of the 60's and 70's.
There are variations in the amount of energy we receive from the sun due to factors
like orbital
patterns and sunspots, but none which can explain the current
warming, according to the IPCC.
This is not simply a question of «turbulent diffusion» by the atmosphere but also of wave -
like «teleconnections» propagating away from regions of tropical convection that are altered by the
pattern of tropical
warming.
Attendees also discussed complicated problems, including hydroclimatic responses to situations where anomalous events
like the 2015 — 2016 El Niño are superimposed onto long - term heterogeneous ocean -
warming patterns.
... «When you hear a phrase
like he said, «the highest ever,» you know, «off the charts,» «record setting,» that's a good sign that on top of a whatever local weather
patterns there are or regional
like El Nino, global
warming, fossil fuel driven climate change is putting its finger on the scale and juicing the atmosphere and causing the even bigger weather event than you would have otherwise seen.»
Natural climate
patterns (think, El Niño) occur regularly because of
warmer ocean waters and influence areas
like regional climates and marine life.
This will, in turn, trigger runaway
warming of the planet and fractured weather
patterns like extra-prolonged droughts or sudden, torrential rains as the entire world begins to sizzle!
What the researchers found quite definitively was that
warm and dry
patterns,
like those that have characterized the past several years of California's drought, are actually happening more often.
«Taking these ten locations from across the globe andsuperimposing the anomaly data produced a sine wave -
like pattern with distinct cooling from the early 1940s to mid-1970s followed by
warming to present; for many of the locations the older data was
warmer, or at least as
warm as present.
The
pattern of
warming that we have observed, in which
warming has occurred in the lower portions of the atmosphere (the troposphere) and cooling has occurred at higher levels (the stratosphere), is consistent with how greenhouse gases work — and inconsistent with other factors that can affect the global temperature over many decades,
like changes in the sun's energy.
15, Cassou et al. (16) argue that the anomalously
warm June 2003 in western Europe could be related to wetter - than - average conditions in the Caribbean that triggered the occurrence of a Rossby wave train
pattern stretching from the Caribbean across the Atlantic, whereas the anomalous August 2003 could be associated with a summer NAO -
like pattern and enhanced monsoon over the Sahel, which might have been compensated dynamically by anomalously strong downdrafts over Europe.
Though it seems
like an oxymoron that «global
warming» leads to colder weather
patterns, Francis says the science behind the data makes sense.
When you add in the temperature trend during this time of year (slight cooling though the northern Midwest,
warming across the Southwest), you get a
pattern much
like that observed during 2018.
That is because there are factors,
like air and ocean circulation
patterns, that affect both the rate and the intensity of the global
warming.
This change in
patterns of deep - ocean sedimentation will result in a curious, dark band of carbonate - free rock — rather
like that which is seen in sediments from the Palaeocene - Eocene thermal maximum, an episode of severe greenhouse
warming brought on by the release of pent - up carbon 56m years ago.
As the climate has become
warmer, weather
patterns change, contributing to higher levels of air pollution
like ground - level ozone that can «cause premature deaths, hospital visits, lost school days, and acute respiratory symptoms.»