TADEAS: Ten clanek o syntetickych palivech je mirne depresivni. V podstate to pri soucasnych technologiich v nasich podminkach nema smysl. A da se predpokladat, ze zadny zasadni prulom behem 10-20 let neprijde (tj ze by se treba skokove zvysila efektivita FVE nebo baterii). Situaci by resily jaderky, ale ty jsou pro mnoho lidi neprijatelny. A nebo uspory / pripadne rovnou kolaps ...

Změňme hymnu nebo náš přístup ke klimatu, vyzývají mladí autoři výstavy Vlastenecká klimaagitka | Rádio DAB Praha
https://dabpraha.rozhlas.cz/...mnu-nebo-nas-pristup-ke-klimatu-vyzyvaji-mladi-autori-vystavy-8269572

z minulyho roku, ale nebylo to tu

Finnish company makes food from thin air - Big Think
https://bigthink.com/technology-innovation/protein-from-air

Solar Foods makes Solein by extracting CO₂ from air using carbon-capture technology, and then combines it with water, nutrients and vitamins, using 100 percent renewable solar energy from partner Fortum to promote a natural fermentation process similar to the one that produces yeast and lactic acid bacteria.

When the company claims its single-celled protein is "free from agricultural limitations," they're not kidding. Being produced indoors means Solar Foods is not dependent on arable land, water (i.e., rain), or favorable weather.

The company is already working with the European Space Agency to develop foods for off-planet production and consumption. (The idea for Solein actually began at NASA.) They also see potential in bringing protein production to areas whose climate or ground conditions make conventional agriculture impossible.

And let's not forget all those beef-free burgers based on pea and soy proteins currently gaining popularity. The environmental challenge of scaling up the supply of those plants to meet their high demand may provide an opening for the completely renewable Solein — the company could provide companies that produce animal-free "meats," such as Beyond Meat and Impossible Foods, a way to further reduce their environmental impact.

TADEAS, TADEAS

Syntetická paliva – power to gas, power to liquid: výroba a účinnost - TZB-info
https://oze.tzb-info.cz/...ny/20711-synteticka-paliva-power-to-gas-power-to-liquid-vyroba-a-ucinnost


Siemens HYFLEXPOWER: První projekt power-to-X-to-power s plynovou turbínou na vodík - TZB-info
https://energetika.tzb-info.cz/...wer-prvni-projekt-power-to-x-to-power-s-plynovou-turbinou-na-vodik

Starosti se šířením koronaviru doslova zatopily přívalové deště a s nimi související povodně. Více než měsíc se Čína potýká se záplavami, které se z obyčejných sezonních staly nejhoršími zřejmě za celé století. Zničené stavby, poničené silnice a další narušení turistického ruchu ale není to nejhorší. Letošní voda mnohým zemědělcům zcela pohřbila naději na jakoukoli sklizeň a ohrozila životně důležité zemědělství druhé největší ekonomiky světa. Nemluvě o jednotlivcích ze čtyřmilionového davu, kteří přišli o střechu nad hlavou a způsob obživy.

Utopené miliony a ztráta veškeré úrody. Povodně v Číně jsou globální hrozba - Seznam Zprávy
https://www.seznamzpravy.cz/...ony-a-ztrata-veskere-urody-povodne-v-cine-jsou-globalni-hrozba-115364

India seeks to open new coal mines in setback to climate action - India Climate Dialogue
https://indiaclimatedialogue.net/...06/22/india-to-open-new-coal-mines-in-setback-to-climate-action/

Current and future global climate impacts resulting from COVID-19
https://www.nature.com/articles/s41558-020-0883-0

we estimate global emission reductions for ten species during the period February to June 2020. We estimate that global NOx emissions declined by as much as 30% in April, contributing a short-term cooling since the start of the year. This cooling trend is offset by ~20% reduction in global SO2 emissions that weakens the aerosol cooling effect, causing short-term warming. As a result, we estimate that the direct effect of the pandemic-driven response will be negligible, with a cooling of around 0.01 ± 0.005 °C by 2030 compared to a baseline scenario that follows current national policies. In contrast, with an economic recovery tilted towards green stimulus and reductions in fossil fuel investments, it is possible to avoid future warming of 0.3 °C by 2050.

Neco k tomu "vysadime bambilion stromu"

Alexander Ač
Sadenie stromov na organických pôdach (teda tých s vyšším obsahom uhlíka) nemá za následok celkové pohlcovanie uhlíka (CO2) z atmosféry v horizonte desaťročí (40 rokov). #SadímeStromy

Tree planting is increasingly being proposed as a strategy to combat climate change through carbon (C) sequestration in tree biomass. However, total ecosystem C storage that includes soil organic C (SOC) must be considered to determine whether planting trees for climate change mitigation results in increased C storage. We show that planting two native tree species (Betula pubescens and Pinus sylvestris ), of widespread Eurasian distribution, onto heather (Calluna vulgaris ) moorland with podzolic and peaty podzolic soils in Scotland, did not lead to an increase in net ecosystem C stock 12 or 39 years after planting. Plots with trees had greater soil respiration and lower SOC in organic soil horizons than heather control plots. The decline in SOC cancelled out the increment in C stocks in tree biomass on decadal timescales. At all four experimental sites sampled, there was no net gain in ecosystem C stocks 12–39 years after afforestation—indeed we found a net ecosystem C loss in one of four sites with deciduous B. pubescens stands; no net gain in ecosystem C at three sites planted with B. pubescens ; and no net gain at additional stands of P. sylvestris . We hypothesize that altered mycorrhizal communities and autotrophic C inputs have led to positive ‘priming’ of soil organic matter, resulting in SOC loss, constraining the benefits of tree planting for ecosystem C sequestration. The results are of direct relevance to current policies, which promote tree planting on the assumption that this will increase net ecosystem C storage and contribute to climate change mitigation. Ecosystem‐level biogeochemistry and C fluxes must be better quantified and understood before we can be assured that large‐scale tree planting in regions with considerable pre‐existing SOC stocks will have the intended policy and climate change mitigation outcomes.

https://onlinelibrary.wiley.com/doi/10.1111/gcb.15229

Nizozemci začali pěstovat plodiny pod průsvitnými solárními panely | E15.cz
https://www.e15.cz/...zacali-pestovat-plodiny-pod-prusvitnymi-solarnimi-panely-zvysuji-vynos-1372250

GOJATLA: se mi libi to mrtvy piskoviste, co tam ma misto zeminy, za to vsechno urcite muze jen sucho, podojit to co to da pak brecet ze je sucho, oh well

GOJATLA: pripomnelo mi to obrazek co jsme loni davali na FB. tak visjak klimatolog je taky clovek, potrebuje svuj job, potrebuje aby system jel dal...

Zajímavé vllákno o tom, proč lidé neposlouchají vědce.
https://twitter.com/ClimateHuman/status/1291860939348701184

Peter Kalmus is a freaked out climate scientist
There's a huge gap between what climate scientists are willing to say privately and what we're willing to say publicly, in terms of how dire a situation we're in. Colleagues, integrity demands we close this gap.

Scientists aren't holding back on the science in our papers. Why would we? (IPCC summaries are another matter.) But in public it's "Here are some graphs" and the language is constrained. In private over beers it's "We're fucked."

Now I'm not a "doomer." I see a continuum of fucked-ness, and I think decades of inaction mean we're already fucked to some not-great degree, but we can prevent being even more fucked. We can always be more fucked by burning more fossil fuel, and less fucked by burning less.

What I'm saying is that it could be helpful for a large number of scientists to step out of "scientist mode" and speak from the heart. To say "I'm human too and I find this terrifying. I'm deeply concerned that if we fail to act we'll be fucked. Catastrophically fucked."

If you're an Earth scientist and you're scared by what you see and where the Earth system is heading, please say so, in very plain, even vulgar language, and as publicly as you can. What's happening isn't remotely OK and I think we have a duty to let everyone feel it.

Extreme droughts in central Europe likely to increase sevenfold | Environment | The Guardian
https://www.theguardian.com/.../co2-extreme-droughts-in-central-europe-likely-to-increase-seven-fold
Researchers say moderate reductions in CO2 emissions could halve their likelihood

Waves of locusts are plaguing several continents » Yale Climate Connections
https://yaleclimateconnections.org/2020/08/waves-of-locusts-are-plaguing-several-continents/