guenter renz

Interesse an Evolution, Anthropologie, Ethik, Gesundheit

[Dr Tessa Dunlop @Tessadunlop]

What the right wing press does not tell you.
#drought #danube #climatecrisis

[Zeke Hausfather @hausfath]

I'm not sure folks have realized just how crazy the second half of 2026 and 2027 will be for global temperatures – on the back of a record-smashing El Niño event. Here is my latest estimate of where both years will end up compared to global temperatures since 1850.

[Jean Fisch @Jean__Fisch]

@InseeFr released France's daily deaths up to 30/6 so I was curious for Paris (one of the regions hardest hit by the heat in Europe)

The impact is "beyond": On Friday 26/6, Paris saw more deaths than on any day during pandemic, incl during its huge wave 1

[Marcel Fratzscher @MFratzscher]

Mit dem Finanzmarkt-Boom wächst das globale Privatvermögen rasant, während die Realeinkommen breiter Bevölkerungsschichten stagnieren oder schrumpfen. Wie lange können Demokratien dieser gegensätzlichen Entwicklung standhalten?
Meine @zeitonline-Kolumne: https://t.co/SHgGUite7t

[guenter renz @contingentia]

Eine neue Buchbesprechung von mir: Wie konnte das geschehen? von Götz #Aly https://t.co/zqs5ZLBLtL via @LinkedIn

[NaturFreunde Berlin @NaturfreundeB]

Böllerverbot jetzt

https://t.co/RnV3D5pJCI

#NaturFreunde #Berlin #Böllerverbot

[Mike Hudema @MikeHudema]

"Current policies are taking the world to a 2.8 degree temperature rise...that spells catastrophe, yet the collective response remains pitiful." – @antonioguterres

There is no time to wait. #ActOnClimate

#climate #energy #renewables

[guenter renz @contingentia]

Wahrscheinlich braucht es solche Bilder.

[Prof. Stefan Rahmstorf 🌏 🦣 @rahmstorf]

Holiday in the climate emergency.
No that’s not AI or edited, it is a photo I just took with my phone on Lacanau beach in France.
Ash is raining from the sky.
What future will this boy grow up in?
It is in our hands, but time is running out.

[H.P. @Peine01]

„Denn so sind die Menschen: eine gemeinsame Furcht führt sie leichter zusammen als eine gemeinsame Liebe.“
Rudolf Ditzen, besser bekannt als Hans Fallada
21. Juli 1893 - 5. Februar 1947

[guenter renz @contingentia]

Ein äußerst interessanter Artikel über #Klimaanpassung.s-Projekte weltweit. #ClimateAdaption

[Carbon Brief @CarbonBrief]

Interactive: How the world is already adapting to climate change | @AyeshaTandon @josh_gabbatiss #CBarchive

🎨 @KerryAnnCleaver Tom Pearson @tomoprater

Read here: https://t.co/1I8j0VQant

[António Guterres @antonioguterres]

Mandela firmly believed that our common humanity could triumph over the forces of hatred, division, discrimination & injustice.

Let’s re-commit to the timeless principles that defined Madiba‘s life:

freedom, justice, equality, solidarity, reconciliation, compassion & peace.

[Mike Hudema @MikeHudema]

You could watch the news 24/7 & not know that:

Our planet’s at its hottest in 120,000 years.
Methane levels are their highest in MILLIONS of years.
CO2 levels their highest in 3 MILLION years.

We're in a climate crisis. Denying it won't solve the problem.

#ActOnClimate #climate #energy #panelsnotpipelines

[Zeke Hausfather @hausfath]

With all the July model runs now in, it is very likely that 2026 will see the largest El Niño event since records began in the late 1800s – and potentially by a truly mind-blowing margin. The median estimate is now 3.6C, roughly 0.8C hotter than the prior record (2.75C).

[Anish Moonka @anishmoonka]

Australia now makes so much solar power that at midday its electricity is worth less than zero, so the grid has started giving it away.

Roughly one in three Australian homes has panels on the roof, the highest household solar rate in the world. About 4.3 million systems pour power into the grid every sunny afternoon. When they all peak together, there is far more electricity than the grid needs, and the price crashes.

For the first three months of 2025 the price of power on the national market sat at zero or below 18 percent of the time, according to the market operator. In Queensland it went negative 66 percent of the time during daylight hours in one quarter. Negative prices mean the companies making the power actually pay to get rid of it.

A new rule, live since July 1, gives households up to 24 kilowatt-hours of free power for three hours in the middle of the day, roughly a day's electricity for a five-person home. It runs in New South Wales, South East Queensland, and South Australia, and you need a smart meter to opt in. You still pay a daily connection fee, plus normal rates for anything outside the window.

Follow the money and the generosity fades. At midday the grid holds more solar than it can use, so it would rather you run the dishwasher, the pool pump, or charge a car than switch the panels off. Queensland already throws away more than a quarter of what its big solar farms make on sunny days. Free power mops up the flood.

The other side of the deal is the evening. Solar disappears at sunset, everyone comes home and turns on the oven and the air conditioning, and prices jump as gas power stations rush to fill the gap. Every load you move into the cheap midday window is a load pulled out of that pricey evening peak.

The same flood has slashed what solar owners earn. The rate you get paid for sending your own power to the grid has halved to about 6 cents, while the price you pay has doubled to 29 cents. In July 2025 New South Wales became the first state to charge solar homes a fee just for exporting.

Three free hours a day sounds like a gift from a country swimming in sunshine. It is the cheapest way for the grid to swallow a flood of solar it never planned for.

[guenter renz @contingentia]

Eins scheint klar zu sein: Strom wird langfristig immer billiger, fossile Brennstoffe nicht. Deshalb ist es klug, auf Wärmepumpe und E-Auto zu setzen.

[Björn Stengel @bjoernstengel]

Genau darauf habe ich gewartet: Natrium ist Lithium bei Netzspeichern klar überlegen. Kein knapper Rohstoff, 15.000 Zyklen, kältefest, ~1 Ct/kWh Speicherkosten. Ausreden gegen Speicher? Da kann man ruhig Salz in die Wunde streuen.
https://t.co/kvxXcplvHB

[abgeordnetenwatch @a_watch]

Die Koalition will das IFG faktisch abschaffen. Mit über 100 Organisationen fordern wir Bundesregierung, Bundesinnenministerium und Innenausschuss auf: Hände weg vom Informationsfreiheitsgesetz! Stoppt die Pläne. Schützt die Informationsfreiheit für alle. https://t.co/AVGf3KjCqb

[Heike Specht @HeikeSpecht]

Heute vor 142 Jahren wurde Lion Feuchtwanger geboren.
"Er besaß 1mal ein Haus, das 1mal konfisziert wurde; er besaß großes Vermögen, das 4mal durch Inflation wegschwamm und 1 mal konfisziert wurde, und 1 mal eine Staatsangehörigkeit, die ihm 1mal abgesprochen wurde.
1/3

[Peter Gardner @PeterDGardner]

Switzerland bolted 5,000 solar panels onto a dam wall 8,000 feet up in the freezing Alps where everyone said solar made no sense, and the plant now makes three times more winter power than any farm down in the valleys https://t.co/9BeOX8hiip

[Mike Hudema @MikeHudema]

If we switched to #renewableenergy, the number of ships crossing the ocean would fall by 40% because they're just carrying coal & oil & gas!! https://t.co/wPsBnoWEwP

We have the solutions. Implement them. #ActOnClimate

#ClimateAction #climate #energy #GreenNewDeal

[Peter Helm 🇩🇪 🇺🇦 @HelmPeter]

Die gezielte Desinformationskampagne der @BILD gegen die Wärmepumpe wurde nun wissenschaftlich aufbereitet.
Konsequenzen für die Bild hat das keine, allerdings für deutsche Wärmepumpenhersteller so wie das Verfehlen der Klimaziele im Gebäudesektor.
Wir brauchen mehr Bildung, um resistenter gegen Desinformation zu sein!