asterisk2a + jet   28

Scientists say the global ocean circulation may be more vulnerable to shutdown than we thought - The Washington Post
Intense future climate change could have a far different impact on the world than current models predict, suggests a thought-provoking new study just out in the journal Science Advances. If atmospheric carbon dioxide concentrations were to double in the future, it finds, a major ocean current — one that helps regulate climate and weather patterns all over the world — could collapse. And that could paint a very different picture of the future than what we’ve assumed so far.
climate  change  global  warming  jet  stream 
january 2017 by asterisk2a
Warming unlikely to limit chances of UK soggy summers
Scientists say that greenhouse gases will cause a general rise in summer temperatures, over the course of this century.
But they argue, it is random shifts in Atlantic storm tracks that determine whether our summers are hot and sunny or cool and wet.
jet  stream  extreme  weather  weather  extreme  UK  global  warming  climate  change 
july 2016 by asterisk2a
Climate change 'to make transatlantic flights longer' - BBC News
Previous studies have shown that climate change is likely to increase turbulence on these transatlantic flights. In this new study researchers modelled how atmospheric winds would change given a doubling of atmospheric CO2. They fed the results into the same route algorithms that airlines routinely use to plan their transatlantic journeys. They found that the winds on the New York to London route will become 15% faster on average. Flights from London will become twice as likely to take over seven hours while flights from New York will speed up and will become twice as likely to take under five hours and 20 minutes. While on average, flights will only gain and lose a few minutes each way, the cumulative impact is "significant" says the study.
climate  change  jet  stream  global  warming  economic  damage  unintended  consequences  unknown  unkown  climate  science  climate  system 
february 2016 by asterisk2a
BBC Radio 4 - Radio 4 in Four, What’s going on with our weather right now?
Strom Desmond, Strom Eva, Storm Frank // Adam Rutherford and Roland Pease explain the science behind why we have been experiencing all this rainfall recently, and it's not just because of El Niño. // weather system tangled, forecasted was wet winter, ... the warmth of tropical pacific changes location (over to central to west pacific) like a bouncy castle - changes stratosphere, still to understand all the dynamics of changes due to El Nino and global warming, see also Polar Vortex and Jet Stream (which is cutting edge of climate science). El Nino was not the only thing that changed the Jet Stream but also the Atlantic temperature. // Cumbria: floods - made worse by "atmospheric river" long ribbon of moisture = long periods of rainfall over one particular place. // Global warming will make winters more extreme. More water vapour in atmosphere due to global warming. + Unusual weather pattern (El Nino + Atlantic temps) = double whammy for extreme and unusual weather.
flooding  flash  floods  UK  weather  system  global  warming  El  Nino  unknown  unkown  unintended  consequences  extreme  weather  weather  extreme  climate  change  jet  stream  weather  ocean  warming 
january 2016 by asterisk2a
Whoa...The Climate Crisis at the North Pole - YouTube
Storm Frank/Storm Eva/Storm Desmond. High temps @North Pole. This will go down into the history books! Destabalising of Polar Vortex (colder winters) vs El Nino effect (warmer wetter winters) + Jet Stream wobbly (<< still cutting edge science.) [...] 'Destable Polar Vortex due to global warming.' Wobbly Jet Stream = chaotic weather (ie warm arctic like california warm). Coming Decades more extremes, more events. //&! Civilization's rise based on fossil fuel = also it's demise, mass extinction - //&! Pre-COP21 France Foreign Minister "We Are on the Edge of a Climatic Abyss" - //&! Crisis is Worse Than We Think & Scientists Are Self-Censoring to Downplay Risk - - public collectively comfortably aware. and hoping for carbon capture tech. //&! Naomi Klein on Why Climate Change is ‘Incredibly Threatening To Our Elites’ -
climate  change  global  warming  extreme  weather  El  Nino  weather  extreme  COP21  greenland  iceshield  Gulf  Stream  climate  science  climate  system  climate  crisis  jet  fossil  fuel  mass  extinction  National  Security  food  crony  capitalism  capitalism  Wall  Street  shareholder  value  profit  maximisation  shared  economic  interest  economic  damage  carbonfootprint  carbon  tax  carbonemission  carbon  trading  scheme  methane  Meat  Industry  food  deforestation  soil  erosion  coastal  erosion  rising  sea  levels  ocean  warming  public  sentiment  public  perception  public  awareness  public  debate  public  image  public  opinion  air  pollution  carbon  capture 
january 2016 by asterisk2a
Forget El Niño, start worrying about the North Atlantic blob | News | The Guardian
This question is what climate scientists across the northern hemisphere are trying to answer, especially since it coincides with an exceptionally cold North Atlantic, which might be even more important because it affects the position of the jet stream. The easterly winds of last week, bringing unseasonably cold weather, are believed to be as a direct result of this North Atlantic cold diverting the jet stream and allowing cold easterly air from Siberia to reach our shores. There has already been snow in Germany.
El  Nino  weather  system  extreme  weather  weather  extreme  global  warming  climate  change  economic  damage  jet  stream  UK  Europe  climate  science  climate  crisis  climate  system  science 
october 2015 by asterisk2a
Britain's water crisis | Nick Davies | Environment | The Guardian
The immediate cause of the early drying out at the source of the Ouse was simply that there was not enough water in the underground aquifer on which it feeds. But that turns out to be part of something bigger. In March 2013, the local branch of the Environment Agency reported that, depending on conditions, there are now years when they can extract water from the Ouse on no more than 94 days. For the rest of the year, abstractors can use water that has been stored during the wet months in the big reservoir at Ardingly, and they can pump up water through boreholes sunk into the underground aquifers. This in turn reduces the amount of water that bubbles up into the river and its tributaries. The Environment Agency has stopped issuing new abstraction licences for the river. Meanwhile, during the summer months, nearly half of what we like to describe as a river is, in fact, recycled waste water and sewage. [...] [south-east and south] “serious water stress”
water  scarcity  water  supply  water  security  drinking  water  water  rights  Aquifer  water  pollution  pollution  waste  UK  infrastructure  investment  sustainability  sustainable  food  industry  Meat  Dairy  Egg  Milk  drought  extreme  weather  weather  extreme  jet  stream  climate  change  global  warming  weather  system  pesticide  herbicide  fungicide  industrial  agriculture  agriculture  industry  mono  agriculture  agriculture  policy  agriculture  Farming  Livestock  public  awareness  public  perception  public  discourse  public  debate  ecosystem  ecological  disaster  environmental  disaster  recycling  food  waste  economic  damage  Generationengerechtigkeit  fairness  babyboomers  Justice  Law  &  Justice  resource  depletion  Millennials  generationy 
october 2015 by asterisk2a
Current El Nino climate event 'among the strongest' - BBC News
Three category four storms seen together in the Pacific for the first time The current El Nino weather phenomenon could be one of the strongest on record, according to the World Meteorological Organization (WMO). [...] Researchers say that these hurricanes can disrupt the predominant easterly trade winds that are found along the equator. This disruption allows more heat to build up in the eastern part of the Pacific, adding more fuel to stormy conditions. But researchers cautioned that the scale of impacts, especially in the northern hemisphere, is very hard to read because there is also an Arctic warming effect seen in the Atlantic jet stream. "The truth is we don't know what will happen. Will the two patterns reinforce each other? Will they cancel each other? Are they going to act in sequence? Are they going to be regional? We really don't know," David Carlson, the director of the World Climate Research Programme, told news agencies.
El  Nino  jet  stream  climate  science  climate  system  2015 
september 2015 by asterisk2a
The Truth About The Global Warming Pause - YouTube
ocean as energy storage (heat), catches and releases it with time delay. changing trade winds (thus also changing jet stream positioning?), increases them when ocean releases energy. [...] new models suggest that we are standing before another energy release from (pacific) ocean and thus a pop in temperatures after +decade of pause from rising air temperature. [ science can only observe and measure what is measurable. we can not run tests based on our assumptions and past experiences on our climate. we can only test with limited/basic climate models in computers based on the complexity scientists have unearthed by observing (putting the complex puzzle together, one item at a time) ] // climate gate - &! &! Climategate, the sequel: How we are STILL being tricked with flawed data on global warming - // &! //
El  Nino  climate  change  climate  science  climate  crisis  climate  system  complexity  unknown  unkown  incomplete  information  extreme  weather  weather  extreme  jet  stream  ocean  warming  ocean  current  climate  gate  climate  model  rising  sea  levels  science  observation 
june 2015 by asterisk2a
BBC News - Climate change to boost summer flash floods, says study
Global warming will lead to a significant increase in extreme summer downpours in the UK, a study suggests. The Met Office and Newcastle University researchers say there could be five times the number of "extreme rainfall events" per hour, under extreme warming projections. This would cause "really severe" flash flooding in many parts of the UK, according to the scientists. However, they caution that this result is based on only one computer model. Flash flooding in Britain has had devastating impacts on communities in recent years. &! "In general, her theory does not say global warming caused any particular weather event, only that it is shifting the overall pattern of jet stream behavior, making certain kinds of persistent weather extremes more likely to occur."
weather  extreme  extreme  weather  climate  change  global  warming  climate  science  complexity  unintended  consequences  unknown  unknowns  UK  climate  system  jet  stream 
june 2014 by asterisk2a
This isn't even the start of the wildfire season, high tide of the wild fire season is August/September. ... If this is an omen of what is to come in future years. HF & GL Californians. #qualityoflife - + 125000 people told to leave homes. ... - The blaze, known as the Cocos fire, is one of nine different fires that have been plaguing San Diego County over the past three days. + +
California  Wildfire  drought  weather  extreme  extreme  weather  global  warming  San  Diego  climate  change  climate  science  weather  system  jet  stream 
may 2014 by asterisk2a
BBC News - Climate report: Creating a sense of urgency or alarm?
the IPCC outline "five integrative reasons for concern" summarising key risks across sectors and regions. These include the risks faced by unique and threatened ecosystems, extreme weather, and the risk of large scale singular events. + !!
climate  change  climate  science  weather  extreme  extreme  weather  globalwarming  global  warming  unintended  consequences  unknown  unkown  IPCC  Intergovernmental  Panel  on  drought  Dust  Bowl  Flooding  jet  stream  Wildfire  emissions  carbonfootprint  carbonemission 
march 2014 by asterisk2a
'Science Guy' Bill Nye Debates Lawmaker on Climate Change - NBC
California (West Coast) is suffering Drought and Fires. East Coast and Lake Area is suffering its 2nd Polar Vortex. UK has wettest start into the new Year since records 250 years began. And the Republican Congress women cites a cost-benefit-analysis.
climate  change  climate  science  weather  extreme  extreme  weather  USA  California  drought  Polar  Vortex  jet  stream  weather  system  cost-benefit  analysis  social  contract  social  society  Career  Politicians  accountability  presidency  barackobama  gwbush  algore  renewable  energy  energy  efficiency  leadership  G  Zero  global  warming  global  imbalances  faultlines  unintended  consequences  complexity  unknown  unkown 
february 2014 by asterisk2a
BBC News - Wavier jet stream 'may drive weather shift'
According to Prof Jennifer Francis of Rutgers University in New Jersey: "This does seem to suggest that weather patterns are changing and people are noticing that the weather in their area is not what it used to be." The meandering jet stream has accounted for the recent stormy weather over the UK and the bitter winter weather in the US Mid-West remaining longer than it otherwise would have. "We can expect more of the same and we can expect it to happen more frequently," says Prof Francis [...] This results in weather patterns tending to becoming stuck over areas for weeks on end. It also drives cold weather further south and warm weather further north. Examples of the latter are Alaska and parts of Scandinavia, which have had exceptionally warm conditions this winter.
global  warming  climate  change  jet  stream  climate  science  UK  weather  extreme  extreme  weather  USA  unintended  consequences  complexity 
february 2014 by asterisk2a
Russell Foster: Why do we sleep? - YouTube
when you sleep certain genes are switched on, responsible for restoration (recovery), energy savings, brain function (efficiency, learning, storing into long-term memory, creativity enhanced, problem solving enhanced), metabolism, .... ie study has shown people who have no REM sleep for 3 days turn shizophrenic. ie studies have shown, sleep deprivation slows down metabolism. body is stressed and slows down the metabolism. stress hormone cortisol goes up. you tend to eat more. get fat over time vs normal sleep and normal cortisol levels.
shift  work  immune  system  neurology  obesity  sleeping  education  creativity  micro  sleep  epigenetics  jet  lag  sleep  deprivation  judgement  Alcohol  drugs  metabolism  stress  learning  sleep  memory  Ghrelin  hygiene  body  clock  mental  health  metabolic  syndrome  problem  solving  alcoholism 
september 2013 by asterisk2a
BBC News - Scientists say UK wet summers down to Atlantic warming
Even the buzz of the London Olympics could not disguise the washout that was last summer, the second wettest for the UK since records began.
UK  weather  system  jet  stream 
june 2013 by asterisk2a
Carbon Dioxide Buildup Could Spell More Turbulence in Flights -
the rise in turbulence could mean higher costs for airlines, because pilots typically fly around turbulence rather than through it. “Our study shows that the amount of air space containing significant turbulence is most likely to double,” said the study’s lead author, Paul D. Williams, an atmospheric scientist at the University of Reading (projected patches of turbulence are in lighter tones in the figure below). “Therefore, if they want to avoid it, pilots won’t be able to fly in a straight line, but they will have to take on a wiggly, more circuitous flight path.” That could lead to longer flights, more delays and a greater expenditure of fuel (which would add more carbon dioxide to the atmosphere).
globalwarming  complexity  climate  science  atmosphere  CO2  unintended  consequences  climatechange  climate  change  jet  stream  air  travel  air  turbulence  carbonemission  environment  climate 
april 2013 by asterisk2a
BBC News - Met Office three-month forecast was 'not helpful'
In a note to the government chief scientist, the Met Office chief scientist Prof Julia Slingo explains the difficulty of constructing long-distance forecasts, given the UK's position at the far edge of dominant world weather systems. She says last year's calculations were not actually wrong because they were probabilistic. [...] "The creation of the three-monthly outlook relies upon the fact that weather is influenced by the slow variation of ocean conditions (and other processes) which can be predicted months in advance. [...] ,the UK's weather is dominated by the highly variable atmospheric circulation over the North Atlantic, making it much harder to predict what will happen weeks and months ahead." -->> the jet stream "over" UK, just a minor dis-positioning of 1000 miles can change the weather markedly
weather  forecast  complexity  globalwarming  MetOffice  UK  weather  system  weather  extreme  unintended  consequences  butterfly  effect  jet  stream  extreme  weather 
march 2013 by asterisk2a
BBC News - Met Office: 2012 was UK's second wettest year on record
Warmer air, more evaporation over seas, more water in clouds, more rain fall over land. = Global Warming = Extreme Weather events (rain fall)
2012  climate  science  climate  change  globalwarming  UK  extreme  weather  jet  stream 
january 2013 by asterisk2a
BBC News - Extreme weather: 'Turbulent times ahead' for UK
'Colder, wetter summers' for UK, climatologists warn
> Recent Jet Stream positioning and behaviour compared to past; Jet Stream over UK into Europe much more unstable, unpredictable how it moves.

The effects of climate change are already evident in Europe and the situation is set to get worse, the European Environment Agency has warned.
climate  science  climate  change  globalwarming  weather  weather  extreme  UK  jet  stream 
december 2012 by asterisk2a
Arctic Ice Cap Shrinks to Record Low Level - YouTube
Jet Stream (Climate Zones), Weather patterns very likely to change and Weather extremes very likely to be an the rise.
globalwarming  arctic  weather  weather  extreme  jet  stream  climatechange  climate  science 
september 2012 by asterisk2a
Heatwaves and scoring summers: Global warming is to blame, say leading scientists | Mail Online
Met Office scientist Dr Peter Stott said: 'As far as how climate change is changing the statistics of extreme weather around the world, this new paper is broadly in line with previous work including work that we published in 2008 showing that hot summers which were infrequent 20-40 years ago are now much more common and that our projections indicate that the current sharp rise in incidence of hot summers is likely to continue.'


'While we can provide evidence that the risk of heatwaves has increased, we cannot say that the chances of such heatwaves were negligible before global warming set in,'

Both the Moscow and Texas heatwaves were associated with 'unusual circulation characteristics',

[ meaning the jet stream, the question is: does global warming (climate change) not only affect temperatures, ocean temperatures and weather extremes, but also bring a change in whole weather zones and jet streams (as bother are influenced by ocean temperatures)? ]
jet  stream  unintended  consequences  complexity  CO2  globalwarming  climate  science  climatechange  weather  weather  extreme 
august 2012 by asterisk2a
BBC News - Why, oh why, does it keep raining?
The jet stream normally sits to the north of the UK in summer, directing areas of low pressure and bad weather further north.

But it isn't and that for weeks on end.

+ Climate change

On top of this, there is the related question of climate change. Most researchers are extremely reluctant to attribute any single weather event to global warming.

But Dr Peter Stott, a leading climate scientist at the UK Met Office, says that since the 1970s the amount of moisture in the atmosphere over the oceans has risen by 4%, a potentially important factor.

That does not sound like much but it does mean that extreme rain storms may bring more rain than before - with more moisture in the air, what goes up must come down, and the odds are worse.
climate  science  jet  stream  climate  climatechange  UK  weather 
july 2012 by asterisk2a

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