Showing posts with label jet stream. Show all posts
Showing posts with label jet stream. Show all posts

Friday, August 3, 2018

Peaks Matter

Heat stress

When calculating how much warmer we can expect it to get, climate models typically use linear projections based on temperature averages, such as annual global average temperatures, daily temperatures that are averages between day and night, etc. Sadly, this downplays the danger, as average temperatures are unlikely to kill people. When lives are at stake, peaks matter!

Where are temperatures rising most?


Temperatures are rising most strongly in the Arctic. Above map shows a rise of as much as 5.7°C or 10.26°F in Arctic.

Ocean heat on the move toward Arctic Ocean

The image below shows that the sea surface was 22°C or 71.6°F on August 13, 2018, at 77.958°N, 5.545°E (near Svalbard), i.e. 6.9°C or 12.4°F warmer than 47 days earlier and 16.4°C or 29.5°F warmer than it was during 1981-2011.


Local maximum temperatures can be good indicators for the maximum heat stress that can be expected in the area.


As illustrated by above image, the sea surface near Svalbard was 22°C or 71.6°F at the green circle on August 13, 2018, i.e. 16.4°C or 29.5°F warmer than 1981-2011.

This high sea surface temperature is an indicator of the temperature of the water below the surface, which in turn is an indicator of the amount of ocean heat that is entering the Arctic Ocean from the Atlantic Ocean.

Ocean heat is carried by the Gulf Stream from the North American coast toward the Arctic Ocean, as illustrated by the images below and on the right.

Warming of the Arctic Ocean comes with a number of feedbacks that accelerate this warming, such as albedo changes that take place as the Arctic snow and ice cover declines, and methane that is released from sediments containing methane in the form of hydrates and free gas.


The situation could get worse rapidly. As an example, with a decrease in cooling aerosols, which are concentrated in the Northern Hemisphere, the North Atlantic looks set to absorb more heat. A recent study calculated that the North Atlantic’s share of the uptake could increase from 6% to about 27%.

As another example, a recent study concludes: Existing models currently attribute about 20% of the permafrost carbon feedback this century to methane, with the rest due to carbon dioxide from terrestrial soils. By including thermokarst lakes, methane becomes the dominant driver, responsible for 70% to 80% of permafrost carbon-caused warming this century. Adding thermokarst methane to the models makes the feedback’s effect similar to that of land-use change, which is the second-largest source of manmade warming.

High methane levels warn about seafloor methane releases

The image on the right illustrates the danger, showing high methane levels at Barrow, Alaska, in July 2018.

When making projections of heat stress, it is important to look at all potential warming elements, including albedo changes, changes to jet streams and sea currents, higher levels of methane, high levels of water vapor, etc.

Methane is a potent greenhouse gas, causing huge warming immediately after entering the atmosphere, while this warming will be felt most strongly where the methane was released. Methane can therefore contribute strongly to local temperature peaks.

On August 6, 2018, mean global methane levels were as high as 1896 ppb. On August 8, 2018, they were as high as 1898 ppb.

Importantly, peak levels on the afternoon of August 6, 2018, were as high as 3046 ppb, as illustrated by the image on the right. The likely origin of those high levels is the Arctic Ocean, which should act as a stark warning of things to come.

Further contributors to heat stress

Next to temperature, humidity is of vital importance. A combination of high temperatures and high humidity is devastating.

A recent study shows that the risk of deadly heat waves is significantly increased because of intensive irrigation in specific regions. The study points at a relatively dry but highly fertile region, known as the North China Plain — a region whose role in that country is comparable to that of the Midwest in the U.S. That increased vulnerability to heat arises because the irrigation exposes more water to evaporation, leading to higher humidity in the air than would otherwise be present and exacerbating the physiological stresses of the temperature.

The image below shows a forecast of perceived temperatures in China on August 7, 2018.


The green circle highlights an area that is forecast to score high on the 'Misery Index' and that is centered around a location on the coast of Poyang Lake, which is connected to the Yangtze River. Temperatures there are forecast to be as high as 36.4°C or 97.4°F. At first glance, this may not look very high, but a relative humidity 68% is forecast to make it feel like 54.1°C or 129.3°F. This translates into a wet-bulb temperature of 31.03°C or 87.86°F.

The image on the right shows relative humidity. Also note the cyclones lined up on the Pacific Ocean. Cyclones can increase humidity, making conditions worse.
The high sea surface temperature anomalies that are common in the West Pacific (image right)  contribute to warmer air and stronger cyclones carrying more moisture toward Asia, as discussed in this facebook thread which also features the next image on the right, showing that cyclone Soulik is forecast to cause waves as high as 18.54 m or 60.8 ft near Japan on August 20, 2018.

If humidity kept rising, a temperature of 36.4°C at a relative humidity of 91% would result in a wet-bulb temperature of 35°C. No amount of sweating, even in the shade and in front of strong winds or a fan, can cool the body under such conditions, and it would be lethal in a matter of hours in the absence of air conditioning or cold water.

There are further factors that can contribute to make specific areas virtually uninhabitable. The urban heat effect is such a factor. El Niño is another one. Land-only temperature anomalies are higher than anomalies that are averaged for land and oceans. As temperatures keep rising, heat waves can be expected to intensify, while their duration can be extended due to jet stream blocking.

The situation is dire and calls for comprehensive and effective action as described in the Climate Plan.



Below, Paul Beckwith warns that parts of the world 'will soon be rendered uninhabitable'.



Video: Unrelenting Heat, Humidity Will Soon Make Regions UNINHABITABLE

Paul Beckwith: "How hot can it actually get? What is in store for us? When you combine the heat domes sitting over many countries with high humidity, many areas around the planet will soon reach the deadly 35°C (95°F) 100% humidity (wet bulb temperature) or equivalent situation whereby a perfectly healthy person outside, in a well ventilated area, in the shade will die from the heat in 6 hours."

Video: Most Mammals Endure Heat Waves Better Than Humans

"Most people, like the very young, the elderly, and the rest of us won’t last anywhere as long, at even lower temperatures. I discuss the latest peer-reviewed science on how parts of high-risk regions in the North China Plains, Middle East, and South Asia will soon be rendered uninhabitable by combined heat and humidity."

Video: Uninhabitable Regions with Extreme Heat and Humidity



Also watch this video, in which Guy McPherson talks about the way aerosols currently mask the full wrath of global warming.

Video: Edge of Extinction: Rate Matters

Above video is also incorporated in the video below.

Video: McPherson's Paradox

and for the bigger picture, also watch the video below.

Video: Responding to Abrupt Climate Change with Guy R. McPherson




Links

• It could be unbearably hot in many places within a few years time
https://arctic-news.blogspot.com/2016/07/it-could-be-unbearably-hot-in-many-places-within-a-few-years-time.html

• Feedbacks
https://arctic-news.blogspot.com/p/feedbacks.html

• Latent Heat
https://arctic-news.blogspot.com/p/latent-heat.html

• How much warming have humans caused?
https://arctic-news.blogspot.com/2016/05/how-much-warming-have-humans-caused.html

• The Threat
https://arctic-news.blogspot.com/p/threat.html

• Extinction
https://arctic-news.blogspot.com/p/extinction.html

• Climate Plan
https://arctic-news.blogspot.com/p/climateplan.html


Saturday, March 3, 2018

Warning Signs


The Arctic is warming up more than twice as fast as the rest of the world, due to numerous feedbacks. At times, large areas over the Arctic Ocean can become 30°C or 54°F warmer than 1979-2000, as illustrated by the image below.


On February 27, 2018, large parts of the Arctic Ocean north of Greenland had turned into open water, as illustrated by the image below.


Yet, while the situation in the Arctic is desperate, with sea ice north of Greenland collapsing and more, mainstream media do not seem to care. If there ever were warning signs of what could eventuate, this is one. The sea ice north of Greenland is typically the thickest, as it is the least affected by melting and can build over many years. Early February 2018, sea ice north of Greenland was up to 5 m thick. To see sea ice this thick getting pushed away and open water emerging north of Greenland in the middle of winter is simply stunning.

For years, I've been warning about the situation in the Arctic, in particular the 'Open Doors Feedback', which is accelerating Arctic warming. Such feedbacks were taken into consideration in an earlier analysis that warned about a potential 1.6°C warming globally due to albedo changes in the Arctic, in combination with associated changes such as loss of the ice buffer (latent heat), more heat transfer from the Atlantic Ocean to the Arctic Ocean due to stronger winds along the path of the Gulf Stream, and more heat entering the atmosphere or remaining in the atmosphere, due to more open water in the Arctic Ocean and as oceans get more stratified and take up less heat from the atmosphere.

So, the current situation doesn't come as a big surprise, but it's stunning to see sea ice collapse north of Greenland.

Back in March 7, 2007, I posted the article 'Ten Dangers of Global Warming', describing events getting progressively worse, with one danger feeding and reinforcing the next one, culminating in panic. Then, I thought that reading that post could at least help people better understand what's going on, and thus help people avoid panicking, but right now, I wonder whether most people do want to understand at all. Anyway, here are some images and words describing what happened over the past few days.

Jet Stream over Arctic Ocean on February 25, 2018

As Arctic warming keeps accelerating, there's ever less temperature difference between the North Pole and the Equator, and this slows down the speed at which the jet stream circumnavigates Earth.

Jet Stream over Arctic Ocean on February 26, 2018
The jet stream is getting more wavy and a more wavy jet stream makes it easier for cold air to move out of the Arctic and for warm air to move into the Arctic, so this 'Open Doors Feedback' is a self-reinforcing feedback that further accelerates warming in the Arctic.

During the northern winter, the Arctic is increasingly getting warmer than North America, Europe and Siberia. This increases the temperature difference between these continents and the oceans, which at times is causing winds to strongly speed up over the North Atlantic and the North Pacific, making an already wavy jet stream extend even further over the Arctic Ocean, reaching areas well beyond the North Pole.

Atmospheric river of heat reaches the North Pole; temperatures were as high as 1.1°C or 34.1°F on February 25, 2018
As the jet stream makes this detour, a huge amount of heat enters the Arctic from the south.

Temperatures above 6°C at Kap Morris Jesup, Greenland's northernmost weather station, on February 25, 2018

These events were preceded by the Polar Vortex splitting up. On February 9, 2018, the Polar Vortex was split up into 4 vortices and reached speeds as fast as 425 km/h or 264 mph.

Polar Vortex split up into 4 vortices
A Sudden Stratospheric Warming event occurred on February 16, 2018, with temperatures reaching as high as 8.9°C or 47.9°F over Hudson Bay.

Polar Vortex splitting up into 4 vortices with a Sudden Stratospheric Warming event occurring on February 16, 2018
The heat that has accumulated in the Arctic Ocean is further illustrated by the February 2018 NASA temperature anomalies image below.


Below is an animation of sea ice thickness, from the Naval Research Laboratory.


Arctic sea ice extent was at record low for the time of the year on February 26, 2018, at 14.159 million km². Arctic sea ice extent typically reaches its maximum in March, but maximum extent in 1991-2000 was reached on February 24. So, there is a chance that Arctic sea ice extent will go all downhill from now on this year.


Zero sea ice volume is within the margins of the trend depicted on the image above on the right. Decline of the snow and ice cover in the Arctic comes with a huge loss in albedo, which means that huge amounts of sunlight that were previously reflected back into space instead get absorbed by the Arctic. Loss of sea ice also means loss of the buffer that until now has consumed huge amounts of heat.

The Buffer has gone, feedback #14 on the Feedbacks page
Peak SST near Svalbard rose from
12.4°C or 55.4°F on Feb 23, 2018,
to 15.6°C or 60°F on Mar 2, 2018.
The danger is that a sudden influx of heat can no longer be absorbed by the sea ice and will instead warm up sediments at the seafloor of the Arctic Ocean that can contain huge quantities of methane in the form of hydrates and free gas.

Destabilization of hydrates can occur in a relatively small area as a result of a relatively small temperature rise. Destabilization comes with a 160 times expansion in volume of the methane, which will send out shock waves that can destabilize nearby hydrates, causing them to destabilize as well, resulting in an eruption of huge quantities of methane over a large area.

Here's another warning sign. Peak sea surface temperature near Svalbard rose from 12.4°C or 55.4°F on February 23, 2018, to 15.6°C or 60°F on March 2, 2018, as illustrated by the red line on the image on the right, with the blue line showing the 1981-2011 average.

And here's another warning sign. High methane releases followed this chain of events on February 27, 2018, pm, likely originating from the seafloor of the East Siberian Arctic Shelf (ESAS).

Methane levels as high as 2892 ppb on February 27, 2018
On March 1, 2018, methane levels as high as 3087 were recorded. Note the solid magenta-colored areas over the ESAS on the image below.


The image below, with measurement by another satellite, shows that methane levels were again very high over the ESAS the next day, i.e. March 2, 2018, confirming earlier indications that this is where the very high methane releases did occur.

As the image below shows, methane levels on March 4, 2018, were still very high, i.e. as high as 2964 ppb.

The image below shows the highest mean global methane readings on March 10 over the years from 2013 through 2018, for selected altitudes corresponding to 945 mb (close to sea level) to 74 mb.

[ click on images to enlarge ]

The table below shows the altitude equivalents in feet (ft), meter (m) and millibar (mb).
57,016 ft44,690 ft36,850 ft30,570 ft25,544 ft19,820 ft14,385 ft 8,368 ft1,916 ft
17,378 m13,621 m11,232 m 9,318 m 7,786 m 6,041 m 4,384 m 2,551 m 584 m
 74 mb 147 mb 218 mb 293 mb 367 mb 469 mb 586 mb 742 mb 945 mb

An earlier analysis calculated that seafloor methane could cause a warming of 1.1°C within one decade. Given a possible additional warming of 2.7°C due to just two elements (i.e. Arctic albedo changes and associated changes, and seafloor methane), a further warming of 2.1°C due to extra water vapor in the warmer atmosphere does seem well possible within a decade. Add up the impact of all warming elements of this analysis and the rise in mean global temperatures from preindustrial could be more than 10°C within one decade, as illustrated by the images below.


A rise of a few degrees Celsius would be devastating, especially when considering that the speed at which such a rise could occur leaves little or no time for plants and animals to adapt, let alone in case of a 10°C rise.


The situation is dire and calls for comprehensive and effective action, as described in the Climate Plan.

Links

• Climate Plan
https://arctic-news.blogspot.com/p/climateplan.html

• Feedbacks in the Arctic
https://arctic-news.blogspot.com/p/feedbacks.html

• Extinction
https://arctic-news.blogspot.com/p/extinction.html

• Ten Dangers of Global Warming
https://arctic-news.blogspot.com/p/ten-dangers-of-global-warming.html

• Methane Erupting From Arctic Ocean Seafloor
https://arctic-news.blogspot.com/2017/03/methane-erupting-from-arctic-ocean-seafloor.html

• Warning of mass extinction of species, including humans, within one decade
https://arctic-news.blogspot.com/2017/02/warning-of-mass-extinction-of-species-including-humans-within-one-decade.html


Saturday, February 3, 2018

Is warming in the Arctic behind this year's crazy winter weather?

Is warming in the Arctic behind this year's crazy winter weather?

File 20180111 101511 sa3hd1.jpg?ixlib=rb 1.1
Seriously cold: The ‘bomb cyclone’ freezes a fountain in New York City.
AP Photo/Mark Lennihan
Jennifer Francis, Rutgers University

Damage from extreme weather events during 2017 racked up the biggest-ever bills for the U.S. Most of these events involved conditions that align intuitively with global warming: heat records, drought, wildfires, coastal flooding, hurricane damage and heavy rainfall.

Paradoxical, though, are possible ties between climate change and the recent spate of frigid weeks in eastern North America. A very new and “hot topic” in climate change research is the notion that rapid warming and wholesale melting of the Arctic may be playing a role in causing persistent cold spells.

It doesn’t take a stretch of the imagination to suppose that losing half the Arctic sea-ice cover in only 30 years might be wreaking havoc with the weather, but exactly how is not yet clear. As a research atmospheric scientist, I study how warming in the Arctic is affecting temperature regions around the world. Can we say changes to the Arctic driven by global warming have had a role in the freakish winter weather North America has experienced?

A ‘dipole’ of abnormal temperatures

Weird and destructive weather was in the news almost constantly during 2017, and 2018 seems to be following the same script. Most U.S. Easterners shivered their way through the end of 2017 into the New Year, while Westerners longed for rain to dampen parched soils and extinguish wildfires. Blizzards have plagued the Eastern Seaboard – notably the “bomb cyclone” storm on Jan. 4, 2018 – while California’s Sierra Nevada stand nearly bare of snow.
A study in contrasts: Warming near Alaska and the Pacific Ocean are ‘ingredients’ to a weather pattern where cold air from the Arctic plunges deep into North America.
NASA Earth Observatory, CC BY
This story is becoming a familiar one, as similar conditions have played out in four of the past five winters. Some politicians in Washington D.C., including President Trump, have used the unusual cold to question global warming. But if they looked at the big picture, they’d see that eastern cold spells are a relative fluke in the Northern Hemisphere as a whole and that most areas are warmer than normal.

A warm, dry western North America occurring in combination with a cold, snowy east is not unusual, but the prevalence and persistence of this pattern in recent years have piqued the interests of climate researchers.

The jet stream – a fast, upper-level river of wind that encircles the Northern Hemisphere – plays a critical role. When the jet stream swoops far north and south in a big wave, extreme conditions can result. During the past few weeks, a big swing northward, forming what’s called a “ridge” of persistent atmospheric pressure, persisted off the West Coast along with a deep southward dip, or a “trough,” over the East.

New terms have been coined to describe these stubborn features: “The North American Winter Temperature Dipole,” the “Ridiculously Resilient Ridge” over the West, and the “Terribly Tenacious Trough” in the East.
While the eastern U.S. suffered very cold temperatures in the recent cold snap, much of the rest of the Northern Hemisphere saw higher-than-average air temperatures.
NOAA, CC BY

Regardless what it’s called, this dipole pattern – abnormally high temperatures over much of the West along with chilly conditions in the East – has dominated North American weather in four of the past five winters. January 2017 was a stark exception, when a strong El Niño flipped the ridge-trough pattern, dumping record-breaking rain and snowpack on California while the east enjoyed a mild month.

Two other important features are conspicuous in the dipole temperature pattern: extremely warm temperatures in the Arctic near Alaska and warm ocean temperatures in the eastern Pacific. Several new studies point to these “ingredients” as key to the recent years with a persistent dipole.

It takes two to tango

What role does warming – specifically the warming ocean and air temperatures in the Arctic – play in this warm-West/cool-East weather pattern? The explanation goes like this.

Pacific Ocean temperatures fluctuate naturally owing to short-lived phenomena such as El Niño/La Niña and longer, decades-length patterns. Scientists have long recognized that those variations affect weather patterns across North America and beyond.
When a persistent area of atmospheric pressure stays in the western U.S., air from the Arctic pours into the U.S, causing a split between the warm and dry West and the cold East.
Mesocyclone2014 and David Swain, CC BY-SA

The new twist in this story is that the Arctic has been warming at at least double the pace of the rest of the globe, meaning that the difference in temperature between the Arctic and areas farther south has been shrinking. This matters because the north/south temperature difference is one of the main drivers of the jet stream. The jet stream creates the high- and low-pressure systems that dictate our blue skies and storminess while also steering them. Anything that affects the jet stream will also affect our weather.

When ocean temperatures off the West Coast of North America are warmer than normal, as they have been most of the time since winter 2013, the jet stream tends to form a ridge of high pressure along the West Coast, causing storms to be diverted away from California and leaving much of the West high and dry.

If these warm ocean temperatures occur in combination with abnormally warm conditions near Alaska, the extra heat from the Arctic can intensify the ridge, causing it to reach farther northward, become more persistent, and pump even more heat into the region near Alaska. And in recent years, Alaska has experienced periods of record warm temperatures, owing in part to reduced sea ice.

My colleagues and I have called this combination of natural and climate change-related effects “It Takes Two to Tango,” a concept that may help explain the Ridiculously Resilient Ridge observed frequently since 2013. Several new studies support this human-caused boost of a natural pattern, though controversy still exists regarding the mechanisms linking rapid Arctic warming with weather patterns farther south in the mid-latitudes.

More extreme weather ahead?

In response to the strengthened western ridge of atmospheric pressure, the winds of the jet stream usually also form a deeper, stronger trough downstream. Deep troughs act like an open refrigerator door, allowing frigid Arctic air to plunge southward, bringing misery to areas ill-prepared to handle it. Snowstorms in Texas, ice storms in Georgia and chilly snowbirds in Florida can all be blamed on the Terribly Tenacious Trough of December 2017 and January 2018.
Cold weather from the Arctic combined with warm tropical air fueled a storm that produced well over a foot of snow and spots of flooding in Boston.
AP Photo/Michael Dwyer
Adding icing on the cake is the tendency for so-called “nor’easters,” such as the “bomb cyclone” that struck on Jan. 4, to form along the East Coast when the trough’s southwest winds align along the Atlantic Seaboard. The resulting intense contrast in temperature between the cold land and Gulf Stream-warmed ocean provides the fuel for these ferocious storms.

The big question is whether climate change will make dipole patterns – along with their attendant tendencies to produce extreme weather – more common in the future. The answer is yes and no.

It is widely expected that global warming will produce fewer low-temperature records, a tendency already observed. But it may also be true that cold spells will become more persistent as dipole patterns intensify, a tendency that also seems to be occurring.

It’s hard to nail down whether this weather pattern – overall warmer winters in North America but longer cold snaps – will persist. Understanding the mechanisms behind these complex interactions between natural influences and human-caused changes is challenging.

The ConversationNevertheless, research is moving forward rapidly as creative new metrics are developed. Our best tools for looking into the future are sophisticated computer programs, but they, too, struggle to simulate these complicated behaviors of the climate system. Given the importance of predicting extreme weather and its impacts on many aspects of our lives, researchers must continue to unravel connections between climate change and weather to help us prepare for the likely ongoing tantrums by Mother Nature.

Jennifer Francis, Research Professor, Rutgers University

This article was originally published on The Conversation. Read the original article.

Thursday, February 1, 2018

North Pole forecast to be above freezing on Feb 5, 2018

The image below shows a forecast of above freezing temperatures over the North Pole on Feb 5, 2018.


Above image shows a forecast of air temperature of 0.2°C or 32.4°F at 1000 hPa over the North Pole on February 5, 2018, 21:00 UTC.


Above image shows a forecast of temperatures of 1.1 °C or 33.9°F at the North Pole at 1000 hPa, on February 5, 2018, 18:00 UTC.


Above image shows a large area around the North Pole forecast to be up to 30°C or 54°F warmer than 1979-2000 on February 5, 2018.


Above image shows sea surface temperatures as high as 15.1°C or 59.2°F near Svalbard on February 9, 2018, in the panel on the left, and air temperatures as high as 6°C or 42.7°F (at 1000 hPa) near Svalbard on February 10, 2018, in the panel on the right.


These high temperatures are caused not only by ocean heat, but also by strong winds pushing warm air and water up from the North Atlantic into the Arctic. Above image shows the Jet Stream moving at speeds as high as 315 km/h or 196 mph (green circle, February 6, 2018, 6:00 UTC), moving in backward direction over Scandinavia, while extending over Antarctica and crossing the Equator at a number of places.


The decreasing temperature difference between the North Pole and the Equator is slowing down the speed at which the jet stream circumnavigates Earth and this is also making the jet stream more wavy.

As a more wavy jet stream extends deeper down over land, it allows cold air from the Arctic to flow down over land. As temperatures over land fall, the difference between ocean temperature and land temperature increases, especially in winter when land temperatures are much lower than ocean temperatures. This increasing difference between land and ocean temperature makes winds stronger and faster over oceans.

[ click on images to enlarge ]
In above image, the left panel shows a wavy jet stream speeding up over the North Atlantic, reaching speeds as high as 345 km/h or 215 mph (at green circle, 250 hPa).

In above image, the right panel shows strong winds pushing warm air from the Pacific Ocean through Bering Strait, resulting in temperatures over Alaska as high as 6.6°C or 44°F (at green circle, at 850 hPa).

The image on the right shows that waves as high as 8.27 m or 27.2 ft (at green circle) are forecast to enter the Arctic Ocean near Svalbard on February 5, 2018, giving an indication of the huge amount of energy that is going into oceans.

Earth is retaining more heat. This translates into higher surface temperatures, more heat getting stored in oceans and stronger winds. This in turn is causing higher waves and more evaporation from the sea surface. The image on the right shows a forecast of total amount of cloud water (in air from surface to space) of 1.5 kg/m² (green circle) in between Svalbard and the North Pole on February 5, 2018.

Warm air, warm water and high waves make it hard for sea ice to form, while evaporation from the ocean adds more water vapor to the atmosphere. Since water vapor is a potent greenhouse gas, this further accelerates warming of the Arctic.

The high temperatures at the North Pole follow high temperatures over East Siberia, as illustrated by the image below.


Above image shows average temperature anomalies for January 31, 2018, compared to 1979-2000. The image below shows open water on the East Siberian coast in the Arctic Ocean that day.


Meanwhile, Arctic sea ice extent is very low. The image below shows that extent on January 30, 2018, was 13.391 million km², a record low for the time of the year.


In the video below, Paul Beckwith discusses the situation.


In the podcast below, by Wolfgang Werminghausenentitled Sam Carana about the Arctic and global temperature, Sam Carana's responses are read by Kevin Hester.

From the interview, Sam Carana: "Methane releases from the seafloor of the Arctic Ocean have a strong warming impact, especially locally, AND methane releases in the Arctic also act as a catalyst for other feedbacks that are all self-reinforcing and interlinked, amplifying each other in many ways. It could easily become 10°C or 18°F warmer in a matter of years, especially in places where most people are now living."



The image below shows that on February 11, 2018, methane reached peak levels as high as 2925 ppb.

High methane peaks are becoming more common as the water temperature of oceans keeps rising, which also goes hand in hand with more water vapor and less sea ice. As said, these are all warming elements that amplify each other in many ways.

On Feb 8, 2018, Antarctic sea ice extent was 2.382 million km², a record low for the time of the year and 1.811 million km² less than the extent on Feb 8, 2014.

The image on the right illustrates the huge loss of sea ice around Antarctica over the past few years. Antarctic sea ice looks set to reach an all-time low extent later this month, with a difference of close to 2 million km² persisting, compared to just a few years ago.

The image below shows a forecast for February 5, 2018, with as much as 3.84 kg/m² (green circle) Total Cloud Water in between South Africa and Antarctica.


More water vapor in the air contributes to global warming, since water vapor is a potent greenhouse gas. The image below shows a forecast for February 5, 2018, with temperatures on Antarctica reaching as high as 8.9°C or 47.9°F (update Feb. 11, 2018: 7.1°C or 44.7°F at 78°S, 17°E at 1000 hPa on Feb. 5, 2018, 15:00z).


At this time of year, global sea ice is typically at its lowest extent for the year. On February 9, 2018, global sea ice reached the lowest extent on record, as illustrated by the image below by Wipneus.


This means that a huge amount of sunlight that was previously reflected back into space is now instead getting absorbed by oceans.

The situation is dire and calls for comprehensive and effective action, as described in the Climate Plan.