Home office s námi udělá víc, než tušíte, pokud se prosadí - Seznam Zprávy
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A toho ušetřeného dojíždění do práce

Earth's history knows catastrophes which are unimaginable for humans. For example, around 66 million years ago an asteroid impact marked the end of the dinosaur era. Long before however, 252 million years ago at the boundary between the Permian and Triassic epochs, Earth witnessed a far more extreme mass extinction event that extinguished about three-quarters of all species on land and some 95 percent of all species in the ocean. Volcanic activity on an enormous scale in today's Siberia has long been debated as a likely trigger of the Permian-Triassic mass extinction, but the exact sequence of events that led to the extinction remained highly controversial. Now, a team of researchers from GEOMAR Helmholtz Centre for Ocean Research Kiel, in collaboration with the Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences and Italian and Canadian universities, provides for the first time a conclusive reconstruction of the key events that led to the mega-catastrophe. Their research also draws bleak lessons for the future. They report about their discoveries in the journal Nature Geoscience.

How a greenhouse catastrophe killed nearly all life | EurekAlert! Science News
https://www.eurekalert.org/pub_releases/2020-10/ggph-hag101920.php

TUHO: Original clanek

The Permian/Triassic boundary approximately 251.9 million years ago marked the most severe environmental crisis identified in the geological record, which dictated the onwards course for the evolution of life. Magmatism from Siberian Traps is thought to have played an important role, but the causational trigger and its feedbacks are yet to be fully understood. Here we present a new boron-isotope-derived seawater pH record from fossil brachiopod shells deposited on the Tethys shelf that demonstrates a substantial decline in seawater pH coeval with the onset of the mass extinction in the latest Permian. Combined with carbon isotope data, our results are integrated in a geochemical model that resolves the carbon cycle dynamics as well as the ocean redox conditions and nitrogen isotope turnover. We find that the initial ocean acidification was intimately linked to a large pulse of carbon degassing from the Siberian sill intrusions. We unravel the consequences of the greenhouse effect on the marine environment, and show how elevated sea surface temperatures, export production and nutrient input driven by increased rates of chemical weathering gave rise to widespread deoxygenation and sporadic sulfide poisoning of the oceans in the earliest Triassic. Our findings enable us to assemble a consistent biogeochemical reconstruction of the mechanisms that resulted in the largest Phanerozoic mass extinction.
https://www.nature.com/articles/s41561-020-00646-4

Ancient volcanic eruptions of this kind are not directly comparable to anthropogenic carbon emissions, and in fact all modern fossil fuel reserves are far too insufficient to release as much CO2 over hundreds of years, let alone thousands of years as was released 252 million years ago,” said Dr Jurikova.
...
But it is astonishing that humanity’s CO2 emission rate is currently fourteen times higher than the annual emission rate at the time that marked the greatest biological catastrophe in Earth’s history”."

Carbon release set off Earth’s biggest extinction | Climate News Network
https://climatenewsnetwork.net/carbon-release-set-off-earths-biggest-extinction/

Unie chce do roku 2030 zrenovovat 35 milionů budov. Česku to pomůže s plněním klimatických cílů – EURACTIV.cz
https://euractiv.cz/...ch-cilu/?fbclid=IwAR2kK2a2xvtBJGe5A14ymqYW2qvPbDUhltaVWVc_C5_YowUd2jFmWnvcPyw

"...V EU se nyní každoročně renovuje pouze jedno procento budov, v Česku se jedná o 0,6 až 0,8 procenta. Podle Komise to ale není dostatečné a tempo renovací chce v následující dekádě zdvojnásobit. Do roku 2030 by podle unijní exekutivy mohlo být v EU renovováno zhruba 35 milionů budov, což přinese nejen úspory energií a peněz, ale také 160 tisíc pracovních míst. Evropská komise to uvedla v dnes zveřejněné renovační strategii. Ta má ovlivnit celý systém renovací – od koncepce projektu až po jeho financování a dokončení."

Energetika a životní prostředí
13. 10. 2020
Záznam z debaty „Strategie pro vodík: Klíč ke splnění klimatických cílů EU?“

Záznam z debaty "Strategie pro vodík: Klíč ke splnění klimatických cílů EU?" | Energetika a životní prostředí | CEBRE
https://cebre.cz/...ych-cilu-eu?fbclid=IwAR0sEET90aX0YrddHdUULtSaAvTQOWp6MkcT3hhkDIk--4lhezIRqNohcXc

Heat-Bouncing Paint Is Latest Weapon Against Climate Change | Digital Trends
https://www.digitaltrends.com/news/heat-bouncing-paint-climate-change/

Capitalism Will Ruin the Earth By 2050, Scientists Say
https://www.vice.com/en/article/v7m48d/capitalism-will-ruin-the-earth-by-2050-scientists-say
On the first option, scientists backed by the European Union’s Horizon 2020 research and innovation program have concluded that capitalism-as-we-know-it cannot support a successful clean energy transition.

Not only that, but capitalism is on track to lead the world into mineral shortages and supply bottlenecks that could cut short efforts to decarbonize transport systems, guaranteeing dangerous climate change.

The new study published in the journal Energy Strategy Reviews finds that electrifying our cars, trucks and trains so that they run on renewable energy is only viable if we reduce the endlessly growing levels of consumption in industrial societies. That, effectively, means fundamentally transforming the very sinews of capitalism.

The real story of the day
https://gretathunberg.medium.com/the-real-story-of-the-day-3b04f49f5025

Today, eleven months after the European Parliament declared a climate emergency, the very same parliament voted to go ahead with an agricultural policy that — in summary — fuels ecological destruction with almost 400 billion euros. Hundreds of thousands of tweets using #VoteThisCAPdown asking the MEPs to intervene didn’t convince enough MEPs to flip this.

...

We ask the people to stay with us and keep pushing. We ask the ones in power to stop pretending they care — or to get going in case they mean it. And we ask the media to wake up, to rise up to their responsibility. This result happened due to that media decided to stay silent, decided not to question proposals, not to challenge leaders, not to intervene, not to inform the public. And if the media continues down this dangerous road, they will lose their credibility among countless young people. And this is something we can not allow to happen as there is no future for democracy without a strong, independent free press.
One hundred and fourteen weeks have passed since our first school strike. And it’s still up to us.

ne-prekvapeni

Dojednáno jest. Pozice Europarlamentu ke Společné zemědělské politice schválená. Je hodně špatná a od mojí středeční analýzy se ještě trochu zhoršila. Jediné pozitivum je zastropování dotací na jeden podnik, které jsou však příliš vysoko a navíc není jisté jestli projdou trialogem (Rada tam má jenom dobrovolné stropy). Text k tomu budu mít buď dnes večer nebo až zítra (vzhledem k Prymulagate máme jiné priority).
Mrzí mě to

(Radek Kubala)

IMHO to sem patří

Premiér se rozčílil ve Sněmovně. Ale co říká, nemusí být pravda - Seznam Zprávy
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plotologie, konecne

Fences dub ecological winners and losers, shape ecosystems
https://www.anthropocenemagazine.org/...e-sun-but-still-dont-understand-their-effects-here-on-earth/


In a recent paper in BioScience, a group of experts argues that it’s time for conservationists to start seriously investigating the many ways in which fences shape ecosystems— so that we can make better decisions about where (and whether) to build them. By analyzing hundreds of previous studies, they hope to lay a framework for this area of study, which they and others call “fence ecology.”

Although fences are “often framed as a management tool,” the authors write, they are actually “a globally significant ecological feature.” If you put the world’s fences end to end, they would stretch at least as far as the distance between the Earth and the sun—much farther than the length of the world’s combined roads. And “they’re proliferating very rapidly,” with new fences added much more frequently than old ones deteriorate or are taken down,



Fence Ecology: Frameworks for Understanding the Ecological Effects of Fences
https://academic.oup.com/bioscience/advance-article/doi/10.1093/biosci/biaa103/5908036

"Most of the time, fences produce more losers than winners,” Dr. McInturff says. Often, these winners are generalists that can handle disturbed areas—in other words, the same ones that survive other types of habitat disruption. More sensitive species tend to lose out. In some cases, fences curtail so many different species that whole ecosystems begin to collapse.

Alarm as Arctic sea ice not yet freezing at latest date on record | Arctic | The Guardian
https://amp.theguardian.com/.../22/alarm-as-arctic-sea-ice-not-yet-freezing-at-latest-date-on-record

For the first time since records began, the main nursery of Arctic sea ice in Siberia has yet to start freezing in late October.

The delayed annual freeze in the Laptev Sea has been caused by freakishly protracted warmth in northern Russia and the intrusion of Atlantic waters, say climate scientists who warn of possible knock-on effects across the polar region.

Ocean temperatures in the area recently climbed to more than 5C above average, following a record breaking heatwave and the unusually early decline of last winter’s sea ice.

The trapped heat takes a long time to dissipate into the atmosphere, even at this time of the year when the sun creeps above the horizon for little more than an hour or two each day.

Geothermal energy is poised for a breakout - Vox
https://www.vox.com/...ronment/2020/10/21/21515461/renewable-energy-geothermal-egs-ags-supercritical

After many years of failure to launch, new companies and technologies have brought geothermal out of its doldrums, to the point that it may finally be ready to scale up and become a major player in clean energy. In fact, if its more enthusiastic backers are correct, geothermal may hold the key to making 100 percent clean electricity available to everyone in the world. And as a bonus, it’s an opportunity for the struggling oil and gas industry to put its capital and skills to work on something that won’t degrade the planet