quote:Op vrijdag 27 september 2013 18:52 schreef Norrage het volgende:
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Sinds afgelopen april is hij dat ook pas. En ik ken hem ook vrij goed,Leuk!SPOILEROm spoilers te kunnen lezen moet je zijn ingelogd. Je moet je daarvoor eerst gratis Registreren. Ook kun je spoilers niet lezen als je een ban hebt.
Nog een artikel+filmpje van de NOS:
http://nos.nl/artikel/555(...)-maximaal-82-cm.html
Exxon baas Rex Tillerson: Fossil fuels warm the planet, clearly there is going to be an impact. Changes to weather patterns, we'll adapt to that. It's an engineering problem and there will be an engineering solution..quote:A recently developed technique for simulating large [O(104)] numbers of tropical cyclones in climate states described by global gridded data is applied to simulations of historical and future climate states simulated by six Coupled Model Intercomparison Project 5 (CMIP5) global climate models. Tropical cyclones downscaled from the climate of the period 19502005 are compared with those of the 21st century in simulations that stipulate that the radiative forcing from greenhouse gases increases by Formula over preindustrial values. In contrast to storms that appear explicitly in most global models, the frequency of downscaled tropical cyclones increases during the 21st century in most locations. The intensity of such storms, as measured by their maximum wind speeds, also increases, in agreement with previous results. Increases in tropical cyclone activity are most prominent in the western North Pacific, but are evident in other regions except for the southwestern Pacific. The increased frequency of events is consistent with increases in a genesis potential index based on monthly mean global model output. These results are compared and contrasted with other inferences concerning the effect of global warming on tropical cyclones.
quote:Op vrijdag 6 december 2013 12:12 schreef Norrage het volgende:
http://www.bris.ac.uk/cabot/news/2013/390.html
quote:The results are presented in a paper, penned by the wizard Radagast the Brown (probably the first environmental scientist). Among other findings, he explains why the elves set sail from the Grey Havens (the prevailing winds were favourable for their journey to the West), and the existence of a dry climate east of the Misty Mountains (the mountains cast a rain-shadow over the region). Radagast also discusses the strengths and weaknesses of contemporary climate models, and shows how they can be used to understand and predict future climate.
Veel lees- en leerplezier!quote:A livable climate is essential for us, so it’s important to have a basic understanding of the atmospheric mechanism that maintains the climate. Because the mechanism is based on fundamental physics and chemistry, scientists, including chemists, bear a responsibility for understanding climate science themselves and helping others who are not scientists be attentive to the issues relevant to maintaining the climate.
Bron: NOAAquote:The combined average temperature over global land and ocean surfaces for November 2013 was record highest for the 134-year period of record, at 0.78°C above the 20th century average of 12.9°C.
http://www.deredactie.be/(...)31222_meer_groenlandquote:Groot waterreservoir ontdekt onder Groenlands ijs
zo 22/12/2013 - 20:36 Pieterjan Huyghebaert
Wetenschappers hebben een smeltwaterreservoir de grootte van Ierland ontdekt onder het ijs in Groenland. Als het water in de oceaan terechtkomt zou dat grote gevolgen kunnen hebben voor de hoogte van de zeespiegel.
Zo mijn eigen gedachten bij het lezen van...quote:Global average temperatures will rise at least 4°C by 2100 and potentially more than 8°C by 2200 if carbon dioxide emissions are not reduced according to new research published in Nature. Scientists found global climate is more sensitive to carbon dioxide than most previous estimates.
De groepen die een wereldwijde temperatuur reeks produceren hebben nog geen jaarverslag uitgebracht. Ga er voorlopig maar vanuit dat dit jaar gemakkelijk de top10 haalt.quote:
December was ook een wereldwijd een warme maand, dus zelfs een top5 klassering zit er mogelijk in.quote:The combined global land and ocean average surface temperature for the year-to-date (JanuaryNovember) was 0.62°C (1.12°F) above the 20th century average of 14.0°C (57.2°F), tying with 2002 as the fourth warmest such period on record.
Een ander onderwerp:quote:Clouds are very pesky for climate scientists. Due to their high spatial and temporal variability, as well as the many processes involved in cloud droplet formation, clouds are difficult to model. Furthermore, clouds have competing effects on solar and terrestrial radiation. Increases in clouds increase reflected sunlight (a cooling effect) but also increase the greenhouse effect (a warming effect). The net effect of clouds at a given location depends the kind of clouds (stratus, cumulus etc.), their distribution in the vertical and on which radiative effect dominates.
Achtergrond:quote:The last decade has produced record-breaking heat waves in many parts of the
world. [...] Here we show that, worldwide, the number of local record-breaking monthly temperature extremes is now on average five times larger than expected in a climate with no long-term warming. This implies that on average there is an 80 % chance that a new monthly heat record is due to climatic change. Large regional differences exist in the number of observed records. Summertime records, which are associated with prolonged heat waves, increased by more than a factor of ten in some continental regions including parts of Europe, Africa, southern Asia and Amazonia. Overall, these high record numbers are quantitatively consistent with those expected for the observed climatic warming trend with added stationary white noise. [...] Under a medium global warming scenario, by the 2040s we predict the number ofmonthly heat records globally to be more than 12 times as high as in a climate with no long-term warming.
Erger nog, er zijn klimaatontkenners die de huidige zachte periode in West-Europa verklaren als een warme uitbijter in 'ons kouder wordende klimaat' en dan heel snel de kou in de VS er bij halen. Dat het loeiheet is in Australië, wordt natuurlijk helemaal niet genoemd.quote:Op dinsdag 7 januari 2014 11:54 schreef cynicus het volgende:
Wat de meeste klimaatontkenners en misinformatie verspreiders niet weten of voor het gemak even vergeten (wat is erger?) is dat ook in een duidelijk opwarmend klimaat er nog steeds koude records gebroken worden. Het zijn er alleen veel minder dan warme records.
Dus deze Exxon baas wil dat we ons aanpassen aan het klimaat, in plaats van het klimaat proberen te normaliseren. Global warming is een effect van het verstoken van fossiele brandstoffen. Bij-effect is het verzuren van de oceanen omdat die het broeikasgas opvangen. Niet alleen wordt het leven op land ongezonder, het leven in de oceanen (voor zover we dat niet leegvissen) wordt ook gigantisch aangetast.quote:Op dinsdag 19 november 2013 14:21 schreef cynicus het volgende:
De zwaarste tropische cycloon tijdens de landing Haiyan treft de Filipijnen, qua GDP nummer 40 ter wereld:
[ afbeelding ]
Maximum windsnelheid van tropische orkanen neemt toe:
[ afbeelding ]
(Bron)
Op basis van de laatste multi-model resultaten (CMIP5) kan worden verwacht dat het aantal en de kracht van tropische orkanen toeneemt voor de noord-westelijke stille oceaan:
[..]
Exxon baas Rex Tillerson: Fossil fuels warm the planet, clearly there is going to be an impact. Changes to weather patterns, we'll adapt to that. It's an engineering problem and there will be an engineering solution..
Alleen als je genoeg geld hebt...heel veel geld.
Nou, wat hij vooral wil is jaarlijks miljarden $ blijven binnen harken ten koste van de toekomstige generaties en de zwakkeren op deze wereld. En hij zal zeggen wat nodig is om dat te bereiken.quote:Op zaterdag 18 januari 2014 12:15 schreef Freak188 het volgende:
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Dus deze Exxon baas wil dat we ons aanpassen aan het klimaat, in plaats van het klimaat proberen te normaliseren. Global warming is een effect van het verstoken van fossiele brandstoffen. Bij-effect is het verzuren van de oceanen omdat die het broeikasgas opvangen. Niet alleen wordt het leven op land ongezonder, het leven in de oceanen (voor zover we dat niet leegvissen) wordt ook gigantisch aangetast.
We zijn onze leefomgeving aan het verwoesten.
http://www.nytimes.com/20(...)-states.html?hp&_r=1quote:Already, the drought is upending many of the assumptions on which water barons relied when they tamed the Colorado in the 1900s.
The Colorado basin states tried in the 1920s to stave off future fights over water by splitting it, 50-50, between the upper-basin states of Utah, New Mexico, Colorado and Wyoming and the lower-basin states of Arizona, Nevada and California.
In fact, the deal underestimated how much water the fast-growing lower-basin states would need. During most of the wet 20th century, however, the river usually produced more than enough water to offset any shortage.
Now, the gap between need and supply is becoming untenable.
Lake Mead currently stands about 1,106 feet above sea level, and is expected to drop 20 feet in 2014. A continued decline would introduce a new set of problems: At 1,075 feet, rationing begins; at 1,050 feet, a more drastic rationing regime kicks in, and the uppermost water intake for Las Vegas shuts down. At 1,025 feet, rationing grows more draconian; at 1,000 feet, a second Las Vegas intake runs dry.
Lake Powell is another story. There, a 100-foot drop would shut down generators that supply enough electricity to power 350,000 homes.
The federal Bureau of Reclamation’s 24-month forecasts of water levels at Powell and Mead do not contemplate such steep declines. But neither did they foresee the current drought.
“We can’t depend on history to project the future anymore,” Carly Jerla, a geological hydrologist and the reclamation bureau’s Colorado River expert, said in an interview. The drought could end tomorrow, she said — or it could drag on for seven more years.
That raises questions that the states are just beginning to sort out.
Reservoir voor modder en stof ofzoquote:Op zondag 19 januari 2014 13:45 schreef Hyperdude het volgende:
Best droog in de VS. Mn. Californië en Nevada.
[...]
Nicasio Reservoir. Nieuwjaarsdag 2014
Is een (drink-)water reservoir in Marin County. CAquote:Op vrijdag 24 januari 2014 19:34 schreef cynicus het volgende:
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Reservoir voor modder en stof ofzo![]()
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quote:'Water op rantsoen door droogte Californië'
Ongeveer 25 miljoen mensen in Californië worden bedreigd door drooglegging.
Het staatswaterbedrijf vreest in de nabije toekomst geen water meer te kunnen leveren door aanhoudende droogte, meldde de BBC zaterdag.
Twee derde van de inwoners van de staat en ruim 400.000 hectare landbouwgrond zijn voor een deel van hun drinkwater en irrigatiemiddelen afhankelijk van het Californische waterbedrijf. De agrarische sector in de westelijke staat is verantwoordelijk voor bijna de helft van al het fruit, groenten en noten die in de Verenigde Staten worden geproduceerd.
http://skepticalscience.c(...)on-el-nino-year.htmlquote:
quote:
quote:The former chancellor Lord Lawson has attacked the Met Office's chief scientist for making an "absurd" link between the floods and climate change, as global warming sceptics deny growing warnings of a connection.
The Conservative, who regularly casts doubt on climate science, said the official forecaster's own report showed no proven evidence to associate the floods devastating parts of the UK and global warming.
quote:The joint report, from the Met Office and the Centre for Ecology and Hydrology, entitled The Recent Storms and Floods in the UK, points out that the 12cm (4.7in)rise in sea level over the 20th century has exacerbated coastal flooding. It says a further rise of between 11cm and 16cm is expected by 2030, two-thirds of which is attributable to the effects of climate change.
It says the run of deep depressions from December to February is unusual, but adds: "In terms of the storms and floods of winter 2013/2014, it is not possible, yet, to give a definitive answer on whether climate change has been a contributor or not." Attributing specific weather events is painstaking work that requires time significant computing power.
Daily heavy rainfall events are now more frequent than in the 1960s and 70s, the report points out. "It is worth emphasising that there is no evidence to counter the basic premise that a warmer world will lead to more intense daily and hourly heavy rain events. In terms of the impacts of changing weather and climate patterns, the cluster of drought and flood events through the early years of the 21st century, and the recent runoff and recharge patterns, are near to the extreme range of historical variability," the authors wrote.
Tja, een conservatief politicus en professionele contrarian die het beter meent te weten dan de experts. What else is new.quote:
quote:The new Dust Bowl: 'epochal' drought hits California's Central Valley
For California this is the third year of little or no rain. More than 90 per cent of the state is in “severe to exceptional drought”. Records have been kept since the 1840s and last year was the driest yet. Some farm areas received less rain than Death Valley in 2013. The Central Valley town of Hanford got 1.99 inches instead of its usual 10 inches.
The immediate cause of the drought is a 2,000-mile long area of high pressure which has been sitting off the US West Coast for more than a year refusing to budge. Meteorologists have dubbed it the “Ridiculously Resilient Ridge”. It has deflected storms around the Golden State, contributing to recent freezing conditions. At a white, wood beamed church in the farming town of Los Banos the packed congregation of unemployed farm workers are convinced the Lord has the answer. They pray for precipitation at a service every morning.
Associate Pastor Randy Bittle told The Telegraph: “We say a few verses together each day and ask for rain. We started at the beginning of Genesis in 2009 and we haven’t had steady rain since. We’re up to Psalm 6 now, about half way through the Bible. God knows that we need rain.”
bronquote:The US National Academy of Sciences and The Royal Society cordially invite you to join us for the release of “Climate Change: Evidence & Causes,” a new publication produced jointly by the two institutions. Written by a UK-US team of leading climate scientists and reviewed by climate scientists and others, the publication is intended as a brief, readable reference document for decision makers, policy makers, educators, and other individuals seeking authoritative information on the some of the questions that continue to be asked.
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