SHEFIK: zalezi co chces, jaky hlediska resia a jakou maj prioritu ,) ... my treba na jednom domku s plochou strechou a na plochou cast strechy jinyho domu davame zelenou strechu, hodne nas na tom zajima ten estetickej aspekt, tam kde na to koulas zeshora je to proste pekny. ty porizovaci naklady jsou docela vysoky, ale je tam dotace, strecha ie sice tezsi a konstrukce tomu ma byt prizpusobena ale neni to nic zasadniho. jinde se snazime dohodnout s nekterym dodavatelem FV strech, coz ma tu vyhodu ze dotace na FV se kombinuje s vydajem na tu krytinu, zaroven se lip/vic zachytava voda (coz my chcem, mame pro ni vyuziti - skrz ultrafiltraci a mineralizaci jde do obehu, nezasakujem). u RD mi ta cerna strecha (panely) neprijde moc kriticka, ta izolace (vuci teplu) se stejne resi jinde a je dostatecna. ma ti mraky ohledu, pokud se to zameri jen na tu pomoc pro mesta, aby neabsorbovaly tolik tepla, tak ma asi pravdu :)

LINKOS: asi iba adware, ale eset mi to zablokoval :) ale dobry serialek, kedysi som to pozeraval

Threat found
This web page contains potentially dangerous content.
Threat: JS/Adware.TerraClicks.A application

GLOBETROTTER: vidis a mne sa v praci smeju, ze chodim v 10 rokoch starych handrach a trickach s rozparanymi rukavmi, ale ma to hned 2 vyhody, jednak usetrim kopu vody potrebnej na vyrobu oblecenia keby ho striedam napr. kazde 2 roky a jednak ma na ulici tolko nezastavuju vselijaki hobovia, ze chcu drobak, lebo sa na mna pozru a myslia si ze som tiez bezdomovec :D

GLOBETROTTER: třeba to dotáhne do nějaké naháčské hippie komunity. Myslím, že tam pak bude jezdit bulvár co týden.

Zcela výjimečně do více diskuzí
Podané ruce mezi zemědělstvím a solární energetikou: agrivoltaika | Obnovitelně
https://www.obnovitelne.cz/...1445/podane-ruce-mezi-zemedelstvim-a-solarni-energetikou-agrivoltaika/

A republikani zrejme ztratili senat.

Renewables produce more power than fossil fuels in Germany for first time | Clean Energy Wire
https://www.cleanenergywire.org/news/renewables-produce-more-power-fossil-fuels-germany-first-time

Němci splnili cíl pro rok 2020 - v poslední chvíli díky covidu :D

Uncovering how grasslands changed our climate
https://phys.org/news/2021-01-uncovering-grasslands-climate.html

https://www.nature.com/articles/s41467-020-20406-7#auth-Victoria-Naipal

Grasslands are managed worldwide to support livestock production, while remaining natural or semi-natural ones provide critical services that contribute to the wellbeing of both people and the planet. Human activities are, however, causing grasslands to become a source of greenhouse gas emissions rather than a carbon sink. A new study published in Nature Communications reports how grasslands used by humans have changed our climate in recent centuries.

Grasslands are the most extensive terrestrial biome on Earth and are critically important for animal forage, biodiversity and ecosystem services. They absorb and release carbon dioxide (CO2), and emit methane (CH4) from grazing livestock and nitrous oxide (N2O) from soils, especially when manure or mineral fertilizers are introduced. Little is known, however, about how the fluxes of these three greenhouse gases from managed and natural grasslands worldwide have contributed to climate change in the past, or about the role of managed pastures versus natural or very sparsely grazed grasslands.

To address this knowledge gap, an international research team quantified the changes in carbon storage and greenhouse gas fluxes in natural and managed grasslands between 1750 and 2012. The study's comprehensive estimates of global grasslands' contribution to past climate change illustrate the important climate cooling service provided by sparsely grazed areas, and the growing contribution to warming from quickly increasing livestock numbers and more intensive management, which are associated with more CH4 and N2O emissions in determining the contemporary net climate effect of the grassland biome.

...

from grasslands increased by a factor of 2.5 since 1750 due to increased emissions from livestock that have more than compensated for reduced emissions from the shrinking number of wild grazers. The net carbon sink effect of grasslands worldwide—in other words, the ability of grasslands to absorb more carbon and pack it in the soil—was estimated to have intensified over the last century, but mainly over sparsely grazed and natural grasslands. Conversely, over the last decade, grasslands intensively managed by humans have become a net source of greenhouse gas emissions—in fact, it has greenhouse gas emission levels similar to those of global croplands, which represent a large source of greenhouse gases

...

In the context of low-warming climate targets, the mitigating or amplifying role of grasslands will depend on a number of aspects. This includes future changes in grass-fed livestock numbers; the stability of accumulated soil carbon in grasslands; and whether carbon storage can be further increased over time or if it will saturate, as observed in long-term experiments

Vodík se hlásí o slovo: pomůže čistému rozvoji české energetiky, průmyslu a dopravy
https://www.alies.cz/wp-content/uploads/2020/10/Infolist-Zeleny-Vodik-final.pdf

Tento infolist popsal, jak lze s pomocí skladování, distribuce a konečného použití vodíku během tří desetiletí významně posunout Českou republiku a EU k emisně nenáročným technologiím a učinit evropskou ekonomiku „silnou, konkurenceschopnou a bezuhlíkovou.” Závěrem doplňme, že tahounem evropské a české ekonomiky nemusí být jen na vodíku založený průmysl nebo energetika, ale i vývoj vodíkových technologií samotných. EU podporuje výzkum a inovace v oblasti vodíku již řadu let, což jí dává náskok při vývoji technologií, jako jsou elektrolyzéry, vodíkové čerpací stanice a velké palivové články.

Norway becomes first country where electric cars account for more than 50% of new sales: industry group

https://twitter.com/AFP/status/1346400464011743232?ref_src=twsrc%5Etfw

Vodík: chytrá finta fosilního průmyslu jak podpořit zemní plyn - Radek Kubala
https://denikreferendum.cz/...ek/32145-vodik-chytra-finta-fosilniho-prumyslu-jak-podporit-zemni-plyn

A 10-year plan to save the world's degraded soil | World Economic Forum
https://www.weforum.org/agenda/2020/12/a-10-year-plan-to-save-our-soil

Of the three great bisospheres – soil, ocean, atmosphere – soil is the only one we have a fighting chance of remediating within a couple of decades given current technologies.

The need to fix soil is hardly an original idea. Yet progress on a global scale has been painfully slow, for several reasons:

Farming practices and incentives have prioritised yield optimisation over long-term soil health, and continue to do so.
Our understanding of the soil science has significant gaps.
Improving soil health is resource intensive and comparatively slow, while the complex variety of soils and climates means there is anything but “one size fits all”.

...


First, the work has confirmed three critical determinants of the functioning of any soil system – capacity, efficiency and resilience. Capacity is the ability to translate water and nutrients into outputs such as food. Efficiency relates to energy flows – how much energy is converted to outputs rather than dissipated? Resilience is soil’s ability to store water and nutrients until conditions improve. This is a framework to make sense of the enormous diversity of soil and climate across our planet, while providing much improved qualitative and quantitative understanding of the micro-scale processes involved.

Second, the work has enabled the prototyping of reliable, quick and low-cost measurement of soil health in real-time using networked digital probes. Access to these data in real-time has the potential to rapidly progress a “how to” library of best-practices for soil health across geography and climate, while providing objective measurement and hence the basis for relevant private or public incentives. Thinking has commenced on the protocols which would be needed to underpin this on a global scale.

Third, we now have, for the first time, a mechanistic theory for how carbon moves from the atmosphere to become stored in soil, and the co-benefits that emerge. This, combined with the measurement break-throughs, is a step-change in using soil management practices and incentives to sequester carbon and improve those three critical determinants of the functioning of any soil system – capacity, efficiency and resilience.