Globalno zagrevanje

[Roger Sanchez]

[hazard]

It's a just-a ice ages and and-a sunspots and stuffs

[hazard]

https://www.space.com/39665-sun-cooling-global-warming.html

 

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Global Warming vs. Solar Cooling: The Showdown Begins in 2020
By Mindy Weisberger, Live Science Senior Writer | February 13, 2018 02:11pm ET

 

The sun may be dimming, temporarily. Don't panic; Earth is not going to freeze over. But will the resulting cooling put a dent in the global warming trend?

 

A periodic solar event called a "grand minimum" could overtake the sun perhaps as soon as 2020 and lasting through 2070, resulting in diminished magnetism, infrequent sunspot production and less ultraviolet (UV) radiation reaching Earth — all bringing a cooler period to the planet that may span 50 years.

 

The last grand-minimum event — a disruption of the sun's 11-year cycle of variable sunspot activity — happened in the mid-17th century. Known as the Maunder Minimum, it occurred between 1645 and 1715, during a longer span of time when parts of the world became so cold that the period was called the Little Ice Age, which lasted from about 1300 to 1850.

 

But it's unlikely that we'll see a return to the extreme cold from centuries ago, researchers reported in a new study. Since the Maunder Minimum, global average temperatures have been on the rise, driven by climate change. Though a new decades-long dip in solar radiation could slow global warming somewhat, it wouldn't be by much, the researchers' simulations demonstrated. And by the end of the incoming cooling period, temperatures would have bounced back from the temporary cooldown. [Sun Storms: Incredible Photos of Solar Flares]

 

Sunspots, which appear as dark patches on the solar surface, form where the sun's magnetic field is unusually strong, and the number of sunspots waxes and wanes in a cycle that lasts about 11 years, fueled by fluctuations in the sun's magnetic field.

 

But during the late 17th century, the sun's spots all but disappeared. This episode corresponded with a period of exceptional cold in parts of the world, which scientists have explained as being connected to the changes in solar activity.   

 

Sunspot activity was high in 2014 and has been dipping ever since, as the sun moves toward the low end of its 11-year cycle, known as the solar minimum, NASA reported in June 2017. But a pattern of ever-decreasing sunspots over recent solar cycles resembles patterns from the past that preceded grand-minimum events. This similarity hints that another such event may be fast approaching, the researchers reported in the study.

 

And the scientists have estimated how intense such an event might be, by analyzing close to 20 years of data recording radiation output from stars that follow cycles similar to that of our sun. Solar radiation output typically drops during a normal solar minimum, though not enough to disrupt climate patterns on Earth. However, UV radiation output during a grand minimum could mean activity plummets by an additional 7 percent, the researchers wrote in the study. As a result, air temperatures on Earth's surface would cool by as much as several tenths of a degree Fahrenheit (a change of a half-degree F is the equivalent to about three-tenths of a degree Celsius) on average, according to the study.

 

The study's findings will help scientists create more accurate climate model simulations, to improve their understanding of the complex interplay between solar activity and climate on Earth, particularly in a warming world, the study's lead author, Dan Lubin, a research physicist with the Scripps Institution of Oceanography at the University of California, San Diego, said in a statement.

 

"We can therefore have a better idea of how changes in solar UV radiation affect climate change," he said.

The findings were published online Dec. 27, 2017, in The Astrophysical Journal Letters.

 

[eumeswil]

Ticks rising

 

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In a warming world, ticks thrive in more places than ever before, making Lyme disease the first epidemic of climate change

 

[eumeswil]

https://www.usatoday.com/story/news/world/2018/05/17/global-warming-april-400th-consecutive-warm-month/618484002/

 

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Last month marked the planet's 400th consecutive month with above-average temperatures, federal scientists from the National Oceanic and Atmospheric Administration announced Thursday. 

 

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Another milestone was reached in April, also related to the number "400": Carbon dioxide — the gas scientists say is most responsible for global warming — reached its highest level in recorded history at 410 parts per million.

This amount is highest in at least the past 800,000 years, according to the Scripps Institute of Oceanography.

[eumeswil]

Halfway to boiling: the city at 50C

 

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It is the temperature at which human cells start to cook, animals suffer and air conditioners overload power grids. Once an urban anomaly, 50C is fast becoming reality

 

[Dunster]

Mere protiv globalnog zagrevanja je neophodno primeniti zarad života na planeti sve i da ne izazivaju zagrevanje jer izazivaju i druge negativne efekte.

[precog]

koje?

[Hellbilly Kali]

On 23.8.2018. at 18:14, precog said:

koje?

Npr.

 

High CO2 Makes Crops Less Nutritious

 

Spoiler

In the largest study yet, Samuel Myers of Harvard University and colleagues report that the CO2 levels expected in the second half of this century will likely reduce the levels of zinc, iron, and protein in wheat, rice, peas, and soybeans. Some two billion people, the researchers note, live in countries where citizens receive more than 60 percent of their zinc or iron from these types of crops. Deficiencies of these nutrients already cause an estimated loss of 63 million life-years annually.

Effects of Rising Atmospheric Concentrations of Carbon Dioxide on Plants

 

Spoiler

Current evidence suggests that that the concentrations of atmospheric CO₂ predicted for the year 2100 will have major implications for plant physiology and growth. Under elevated CO₂ most plant species show higher rates of photosynthesis, increased growth, decreased water use and lowered tissue concentrations of nitrogen and protein. Rising CO₂ over the next century is likely to affect both agricultural production and food quality. The effects of elevated CO₂ are not uniform; some species, particularly those that utilize the C₄ variant of photosynthesis, show less of a response to elevated CO₂than do other types of plants. Rising CO₂ is therefore likely to have complex effects on the growth and composition of natural plant communities.

 

 

A to je samo ugljen dioksid.

Mogu i da nastavim 

 

S druge strane, praktično sve mere protiv povećanja koncentracija gasova staklene bašte pozitivno utiču na životnu sredinu, kao i na ljudske zajednice, posebno u zdravstvenom smislu (manje zagađen vazduh, pozitivan uticaj zelenila na psihu itd itd).

 

[aram]

objasnio:

 

'We're doomed': Mayer Hillman on the climate reality no one else will dare mention

 

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“The outcome is death, and it’s the end of most life on the planet because we’re so dependent on the burning of fossil fuels. There are no means of reversing the process which is melting the polar ice caps. And very few appear to be prepared to say so. I’m not going to write anymore because there’s nothing more that can be said.”

 

[Hellbilly Kali]

9 minutes ago, aram said:

objasnio:

 

'We're doomed': Mayer Hillman on the climate reality no one else will dare mention

 

 

 

Da. U svom tom užasu mi je najviše legao deo gde kaže da nam preostaje samo da se fokusiramo na ljubav, muziku i znanje

(a rln, kad bi se većina stvarno fokusirala na navedeno umesto na razne oblike patkometrije, i planetu bismo mnogo manje opterećivali).

Edited August 27, 2018 by Hellbilly Kali

[Hellbilly Kali]

13 minutes ago, Hellbilly Kali said:

A to je samo ugljen dioksid.

Mogu i da nastavim 

 

 

Ah, kako sam mogla da zaboravim...

Ocean Acidification

[beyoncé]

2 hours ago, Hellbilly Kali said:

 

Da. U svom tom užasu mi je najviše legao deo gde kaže da nam preostaje samo da se fokusiramo na ljubav, muziku i znanje  klopu

 

fokusirala se

[Hellbilly Kali]

43 minutes ago, beyoncé said:

fokusirala se

 

Znala sam da je nešto zaboravio!

edit: mada ako se baš potrudiš, i klopu bi mogla da proguraš u kategoriji "znanje"  Šta ćeš tokom klimatokalipse ako ne znaš omiljene recepte napamet! Ili o značaju i načinima termičke obrade potencijalno bobičavog () mesa.

Edited August 27, 2018 by Hellbilly Kali

[Hellbilly Kali]

2 hours ago, Host said:

Da gledamo Melanholiju, taj fazon? Hvala lepa, dajte brzu ili sporu smrt, ne pravim pitanje  

 

Pa Melanholija prilično ubada. Ma koliko da ne volim Fontrira, u ovom kontekstu je baš ispao vizionar.

Spoiler

Na kraju, valjda je najbitnije ne završiti kao onaj baja, u potpunom denial-u, a zatim beživotno otromboljen na kauču.

U to ime:

https://thenarwhal.ca/the-lost-summer-the-emotional-and-spiritual-toll-of-the-smoke-apocalypse/