Tomáš Obšívač

@ Bluesky / We do not inherit the Earth from our ancestors, we borrow it from our children.

[Tomáš Obšívač @obsivac]

Don't look up and trust your supreme leader, I mean God.

[Tomáš Obšívač @obsivac]

@Mitculka @GavinnyOriginal Řekli MAGA kultu, že budou změny bolet, ale pak bude Amerika zase skvělá! Takže co car dělá, dobře dělá. A za všechny problémy může Biden nebo Obama.

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene Our current civilization needs stable living conditions. But well, if you are not concerned about food shortages, the expansion of uninhabitable parts of the Earth, species extinction, etc. in the next hundred years, then you don't have to worry about climate change.

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene Except that a delayed ice age is not the only consequence of CC. Faster than we can adapt, we will feel the impacts on the biosphere, collapsing ecosystems, rising sea levels, migration, etc. This is not to say that humanity's other problems are small. CC is a big problem too.

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene We know this thanks to science. Believe it or not, CO2 really is the so-called control knob.

https://t.co/uZkJescMCH

https://t.co/70IWIbrfoO

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene Throughout the Holocene we enjoyed a relatively stable temperature, it allowed us to settle, grow crops, build cities, all tuned to a stable climate. But now we are breaking that with a significant increase of the greenhouse effect.

https://t.co/NdjgMRGCb5

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene Global temperature varies significantly only on long time scales. It changes little in the short term, except for extraordinary events such as extreme volcanic activity (which causes cooling). Natural variability is caused by phenomena such as El Niño. 1/2

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene I think we're going to see various attempts at geoengineering very soon. Rising temperature is too costly and dangerous. Anyway, decarbonization is based on the science finding that stopping emissions will stabilize temperature (to the level of natural variability).

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene Yep, we have already postponed or perhaps cancelled the next ice age. It can't happen with such elevated CO2 levels. However, we don't have the technology to regulate the concentration of CO2 in the atmosphere. We can't even stabilise it yet, we depend on fossil fuels.

[Tomáš Obšívač @obsivac]

@todaystropics @ryankatzrosene Except it (another ice age) would happen slowly over tens to hundreds of thousands of years. But we are causing rapid warming in just decades. Rate of change is the most dangerous part of climate change.

[Prof. Ryan Katz-Rosene @ryankatzrosene]

Climate Denier: "There's no relationship between CO2 and temperature whatsoever! #ClimateHoax"

Anyone Who Considers the Scientific Evidence (AWCSE): "Except... we can see in the geological record the two are very closely related🤷‍♂️"

Climate Denier: "OK... but temperature change precedes CO2 change, so it's temperature that influences CO2, not the other way around. #ClimateHoax"

AWCSE: "Except... we can clearly see they are mutually-reinforcing feedbacks, and anyway, from laboratory experiments we know that CO2 absorbs heat. You can literally do a DIY experiment at home and see it for yourself with your own eyes🤷‍♂️"

Climate Denier: "OK... but that's just in a lab environment, we don't have proof that it works it in the real world... The real world isn't a greenhouse! #ClimateHoax"

AWCSE: "Except... it has been observed in the real world for over 200 years. Moreover, Earth is presently warming at an unprecedented pace alongside rapid CO2 increases🤷‍♂️"

Climate Denier: "OK... but that's a good thing, higher average temperatures and higher CO2 is good for plants! I ♥️ plants and I ♥️CO2! #ClimateHoax"

AWCSE: "Except... higher average temperatures are changing weather patterns, and increasing the vapour pressure deficit, which is not good for plants, as it's a key factor in plant stress, drought severity, and wildfire risk... In fact, it's long been predicted that the land sink growth will slow down alongside warming, just as we have observed 🤷‍♂️"

Climate Denier: "OK... but CO2's warming effect saturates... further increases in concentration will have a smaller warming influence #ClimateHoax"

AWCSE: "Except... The absorption band widens at higher CO2 levels, allowing more heat to be trapped, especially in the upper atmosphere where saturation hasn’t occurred🤷‍♂️"

Climate Denier: "OK, but we're currently in a CO2 famine. Without CO2 Earth would be too cold for humans #ClimateHoax"

AWCSE: "Except... you started by saying CO2 doesn't influence temperature! Now you're admitting it does increase temperature!🤷‍♂️"

Climate Denier: "OK... but it's been warmer before, like during the Medieval Warm Period. So warmer temperatures are fine for humans. #ClimateHoax"

AWCSE: "Except... the most recent scientific assessments of Holocene *global* surface temperatures show that it was NOT this warm for at least 125,000 years, probably much longer. Human beings, and certainly modern civilization and agricultural societies, have likely never experienced global temperatures this high, and it's only getting hotter...🤷‍♂️"

Climate Denier: "OK... but warmer temperatures are good. People like warmer climates and there will be less Cold Deaths #ClimateHoax"

AWCSE: "Except... our infrastructure is not built for a much warmer climate, and it's warming very quickly. Our systems of production and cultures have evolved along the climate boundaries we've seen for the last few hundreds of years or longer. And the risks of heat stress, productivity losses, and damages from extreme weather are getting worse. We're on track for nearly 3C of warming above the pre-Industrial era by end of this Century... more if we don't reduce emissions🤷‍♂️"

Climate Denier: "OK... but there's no way of knowing what the global temperature was before the Industrial era. There were no satellites and very few weather stations #ClimateHoax"

AWCSE: "Except... you just said a minute ago that it was warmer during the Medieval Warm Period... so clearly you DO think it's possible to determine pre-Industrial Global Surface Temperatures...🤷‍♂️"

Climate Denier: "OK... but the data showing it's warmer today is manipulated by climate scientists to suit their agenda and so they can receive grant money. I've seen the original raw station data from earlier this Century; they adjusted it afterwards to fit their narrative #ClimateHoax"

AWCSE: "Except... there are similar data points from numerous independent assessments and scientific agencies all over the world... including corroborating non-temperature readings like the long term Cherry Blossom records in Japan. It would be virtually impossible for all these distinct scientific efforts to be in cahoots, secretly manipulating the data in a synchronized way...🤷‍♂️"

Climate Denier: "OK... but a lot of this data is from ghost stations - there actually isn't real data coming from those stations #ClimateHoax"

AWCSE: "Except... you *just* said you had seen the original raw data, which you claimed was real prior to manipulation! No matter how you slice it, the world is warming ..🤷‍♂️"

Climate Denier: "OK... but the warming is because of the Urban Heat Island effect, not GHGs. #ClimateHoax"

AWCSE: "Except... we have temperature records from rural areas and remote areas like the Arctic and Antarctica - where there are no cities - that show warming too... so clearly UHI can't explain all the warming, and you've already admitted above that GHGs warm the planet..🤷‍♂️"

Climate Denier: "OK... but there's no such thing as "global average temperature" - that is a meaningless term #ClimateHoax"

AWCSE: "Except... once again you're contradicting what you just said a moment ago! Besides, we have tens of thousands of weather stations around the world, including in the oceans on floating buoys, not to mention satellite data and other proxies... Computer modelling can give us a fairly precise sense of global average temperature, especially for recent decades..🤷‍♂️"

Climate Denier: "OK... but the models are unreliable - all the models have been wrong so far. #ClimateHoax"

AWCSE: "Except... the models have actually been pretty solid. Check out this chart showing early modelling estimates of global temperature trends based on assumptions about CO2 emissions trends...pretty close to the mark!🤷‍♂️"

Climate Denier: "OK... but there's no relationship between CO2 and temperature whatsoever! #ClimateHoax"

AWCSE: "Except... oh FFS, never mind."

[Tomáš Obšívač @obsivac]

@MockoJar @ZuzanaHronova @petrfischer3 Tak schválně, prosím napište jméno pilota a odkaz na nějaký důvěryhodný zdroj, který uvádí, že změnil pohlaví. Nebo se můžete omluvit, že šíříte lži.

[Tomáš Obšívač @obsivac]

@Milanlek2 @tomasek2006 @andreas_ppdp Potenciál VTE máme značný, viz studie Ústavu fyziky atmosféry AV ČR. Zaspali jsme s výstavbou VTE.

Modernizace sítě, integrace VTE/OZE je složitější, neplatí jednoduše, že je potřebujeme zálohy 1:1.

V čem nejsou Fakta... objektivní, co uvádí špatně?

[Tomáš Obšívač @obsivac]

@Milanlek2 @tomasek2006 @andreas_ppdp Jádro z trhu fos. zdroje nevytlačí, ale ok, v energetickém mixu místo má. Souhlasím s touto analýzou:

https://t.co/xxfSru9gxl

Zásadní budou FVE a VTE ... klíčový rozvoj VTE. Udržení nebo mírné navýšení současné výroby z jádra nám může problém s nedostatkem el. zjednodušit.

[Tomáš Obšívač @obsivac]

@Milanlek2 @tomasek2006 @andreas_ppdp Rozumím a byl bych rád, kdyby lidé dál klidně mohli pálit uhlí a kácet pralesy, což nesporně přineslo spoustu blahobytu. Dávno ale věda došla k tomu, že to udržitelné není a musíme relativně rychle najít lepší způsob „obživy“ než je drancování přírodních zdrojů. Je to těžké.

[Tomáš Obšívač @obsivac]

@Milanlek2 @tomasek2006 @andreas_ppdp Pokud by mělo více CO2 v ovzduší jen tento vliv (což nemá), tak bych rád souhlasil.

Co se týká ledovců, zkuste vysvětlit milionům lidí dole po proudu, až jim roztaje horský ledovec, případně i tání způsobí náhlou záplavu (GLOF), že z toho profitují kamzíci.

[Tomáš Obšívač @obsivac]

@Milanlek2 @tomasek2006 @andreas_ppdp OK, biopaliva nejsou ekologická, pokud byl kvůli nim vykácen kus pralesa. To víme tak 20 let? Dlouho už chápeme i význam divoké přírody a biodiverzity. O škodlivosti průmyslového zemědělství taky není sporu. Platí, že greening neznamená lepší životní prostředí.

[Tomáš Obšívač @obsivac]

@jiri_skerik @Holy_czech @andreas_ppdp EU řeší uhlíkovou neutralitu v r. 2050, obrovský úkol, který bude trvat mnoho volebních období. Potřeba spěchat vyplívá právě ze zanedbání řešení v předchozích desetiletích. Každé otálení se změnami někdo těžce odnese, my asi jen finančně, řadě lidí ale půjde doslova o život.

[Tomáš Obšívač @obsivac]

@Milanlek2 @tomasek2006 @andreas_ppdp Je to zajímavá zpětná vazba. Zelená ale automaticky neznamená zlepšení. Intenzivnější zemědělství (více hnojiv), třeba v Indii, sázení plantáží stromů, třeba v Číně, neznamená, že se životní prostředí zlepšuje. Na jiném místě zároveň např. mizí 1000x hodnotnější deštný prales.

[Tomáš Obšívač @obsivac]

@anonykrysa @VojtechPecka https://t.co/NZqY79rLh6

Atmospheric CO2 levels of between 280 and 350 parts per million created the climate that let humanity build and feed the modern world. The farther we get from those levels, the more we run the risk of disturbing that balance.