Global warming

ampak številka 140.000 dodatnih smrti letno že v zadnjih nekaj desetletjih pa je presenetljiva

The CRA 2000 study compared observed and projected
climate conditions (based on several climate change scenarios) with a counterfactual situation, represented by average climate conditions during 1961-1990, when the effect of carbon emissions on climate was thought to be minimal.
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Climate change was estimated to be already responsible for 3% of diarrhoea, 3% of malaria and 3.8% of dengue fever deaths worldwide in 2004. Total attributable mortality was about 0.2% of deaths in 2004; of these, 85% were child deaths.

Malajlo je 31. avg 2013 ob 18:17 izjavil:

No, tukaj bi pa lahko imela (skoraj) podvojitev populacije kako vzročno zvezo. Recimo, poplava na barju leta 1980 ni bil nek event. Zdaj, ko je vse pozidano, jo pa takoj zabeležijo.

From 1900 until 2005, there were six droughts of significance in Syria; the average monthly level of winter precipitation during these dry periods was approximately one-third of normal. All but one of these droughts lasted only one season; the exception lasted two. Farming communities were thus able to withstand dry periods by falling back on government subsidies and secondary water resources. This most recent, the seventh drought, however, lasted from 2006 to 2010, an astounding four seasons -- a true anomaly in the past century. Furthermore, the average level of precipitation in these four years was the lowest of any drought-ridden period in the last century.
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Martin Hoerling, the lead researcher of the study, explains: "The magnitude and frequency of the drying that has occurred is too great to be explained by natural variability alone. This is not encouraging news for a region that already experiences water stress, because it implies natural variability alone is unlikely to return the region's climate to normal."
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The drought in Syria is one of the first modern events in which a climactic anomaly resulted in mass migration and contributed to state instability. This is a lesson and a warning for the greater catalyst that climate change will become in a region already under the strains of cultural polarity, political repression, and economic inequity.

dstr17_ je 1. jun 2013 ob 17:16 izjavil:

97% znanstvenikov pravi, da je CO₂ vzrok za globalno segrevanje in ima za to goro dokazov, medtem pa 3% temu ne verjame in kot alternative predlaga razne mehanizme, za katere ni nobenih prepričljivih dokazov (CFC-ji, Sonce, kozmični žarki), ali pa govori o ledeni dobi leta 2014 (tvoj članek), ljudje pa mislijo da obstaja kakršnakoli debata o globalnem segrevanju.

Nobene debate ni, znanost je kristalno jasna: Zemlja se segreva in vzrok za to so človeški izpusti CO2 (in deforestacija in vse ostalo kar spada zraven).

We analyze the evolution of the scientific consensus on anthropogenic global warming (AGW) in the peer-reviewed scientific literature, examining 11 944 climate abstracts from 1991–2011 matching the topics 'global climate change' or 'global warming'. We find that 66.4% of abstracts expressed no position on AGW, 32.6% endorsed AGW, 0.7% rejected AGW and 0.3% were uncertain about the cause of global warming. Among abstracts expressing a position on AGW, 97.1% endorsed the consensus position that humans are causing global warming. In a second phase of this study, we invited authors to rate their own papers. Compared to abstract ratings, a smaller percentage of self-rated papers expressed no position on AGW (35.5%). Among self-rated papers expressing a position on AGW, 97.2% endorsed the consensus. For both abstract ratings and authors' self-ratings, the percentage of endorsements among papers expressing a position on AGW marginally increased over time. Our analysis indicates that the number of papers rejecting the consensus on AGW is a vanishingly small proportion of the published research.

dstr17_ je 4. sep 2013 ob 21:42 izjavil:

(vsak članek pač ni namenjen razglabljanju o globalnem segrevanju)

topics 'global climate change' or 'global warming'

Now, a large hole (roughly 150 square kilometers or 58 square miles) of near-zero ice concentration appears to have opened up at about 87 degrees North latitude. Small areas of open water are common within the ice pack, even at the North Pole, as the ice pack shifts in response to winds and currents, resulting in cracks (called leads) in the ice. The current opening seen in our satellite imagery is much larger.

“Climate change has arrived,” and the world must act. That’s the message from fifteen nations in the southwestern Pacific, who signed a statement yesterday calling on other countries to join them in “the urgent reduction and phase down of greenhouse gas pollution.”
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The Majuro declaration for Climate Leadership is surprisingly strong considering these types of documents are usually intent on satisfying the least ambitious parties – Australia and New Zealand, in this case. But the text, adopted at the 44th Pacific Island Forum, appeals for urgent action, commits all signatories to be "climate leaders" and calls for an energy revolution.

CoolBits je 13. sep 2013 ob 16:18 izjavil:

Očitno ne, če segrevanja sploh ni.

Mipe je 13. sep 2013 ob 16:19 izjavil:

Seveda je segrevanje.

Lokalno.

CoolBits je 13. sep 2013 ob 16:28 izjavil:

No se bom malce popravil... segrevanja kot ga napovedujejo warmerji NI! So le naravne oscilacije...

Natančen mehanizem po katerem kajenje povzroča raka še danes ni v celoti pojasnjen.

Gavran je 13. sep 2013 ob 22:58 izjavil:

dstr17_ je 13. sep 2013 ob 16:25 izjavil:

Višanje morske gladine,

Kje TOČNO in za koliko TOČNO se je dvignila morska gladina? v Benetkah in Piranu, ki sta ob določenih obdobjih REDNO poplavljena vsako leto, ni opaziti nobene posebne spremembe... pozabi na to da se Benetke pogrezajo...

Trend višin morja v Koprskem zalivu v obdobju od 1961 do 2001 kaže zviševanje in se ocenjuje na 0.1 m/100 let kar je istega velikostnega reda kot v Sredozemlju.