#co2e — Public Fediverse posts

Heat pump case study: the real changes in #electric and #NaturalGas use, utility bills, and #CO2e #emissions after I changed from natural gas furnaces to dual fuel #HeatPump to heat my house. This is what actually changed.
Part of my #CO2 reduction wedge.
https://co2mmit.substack.com/p/heat-pump-case-study

Der #GreenStartup Report (#Borderstep) vermisst die deutsche #GreenTech-#Startup-Szene seit 2013.

Die Community wächst auf knapp 4.700 Unternehmen – zugleich sinkt erstmals seit Jahren die Gründungsdynamik.

Spannend: investitionsfinanzierte grüne Startups sind besonders forschungsnah (hohe #Patent-Quote) und erzielen im Schnitt deutliche #CO2e-Reduktionen gegenüber konventionellen Lösungen.

https://www.borderstep.de/publikation/green-startup-report-2026/

#SmartCity #BVSC #BundesverbandSmartCity #BVSCnet

Einer neuen Studie von #Systemiq zufolge kann die Ausweitung der Produktion von Fleisch- und Milchalternativen bis 2045 einen erheblichen ökonomischen und ökologischen Nutzen bringen. So könnten 2045 bis zu

👉 250.000 neue #Arbeitsplätze geschaffen worden sein und
👉 4,8 Mio. t weniger #CO2e emittiert
👉 1,2 Mio. Hektar weniger #Fläche verbraucht und
👉 76 Mio. m³ #Wasser eingespart

werden.

https://gfieurope.org/de/blog/oekonomisches-potenzial-alternative-proteine/

#Klimaschutz #Klimakrise #Wasserkrise #Agrarwende #Tierindustrie #Fleischindustrie #Milchindustrie #Massentierhaltung #Landwirtschaft #LULUCF #Flächenverbrauch #Flächennutzung #Artenvielfalt #Biodiversität

ads like these are irresponsible.

per-kg of product, #rice produces far fewer greenhouse gases than the #dairy industry[1].

in fact, nice rice's own website claims this much[2]:

> Important point 2: this statistic refers to total global emissions. We think that is the simplest and best measure of a food's contribution to emissions. But it's worth noting that other leading academic research ranks foods based on their CO2 intensity
(like CO2 per 100g of protein or CO2 per 1000 calories - on these measures rice ranks # 10 and # 12 respectively).

unsurprisingly, rice being a staple consumed by far more people produces more #CO2e than dairy.

it's important that we reduce carbon emissions everywhere we can, especially for something as important as rice 🍚 but advertisers also need to be a lot more responsible about how they deliver this message.

will this actually influence people to consume less bad[3] rice..?

...or will it fuel #xenophobia and people's self-righteousness over their choice to consume dairy? 💡

#ClimateChange #GoVegan

[1]: https://ourworldindata.org/carbon-footprint-food-methane
[2]: https://wearenicerice.com/pages/our-claims
[3]: non-gentrified, mass-produced rice farmed by your average Asian farmer trying to feed their family

"Coal mine methane emitted by Germany could be 28 to 220 times as much as is officially reported."

"methane from Germany’s surface coal mines are clearly visible from satellite data, indicating emissions are significant and need to be addressed. The highest methane concentrations are found over the Hambach and Welzow-Süd mines"

https://ember-climate.org/insights/in-brief/de-undermines-cmm-emissions/

#RWE #Germany #coal #Kohle #methane #CO2 #CO2e #Hambach #Welzow #Ember

(Paywall/Heise+) Mit der Recherche zu diesem Artikel habe ich glaube ich vor gut einem Jahr angefangen und diese dann abgebrochen. Den kompletten #CO2 -Fußabdruck herauszufinden nicht einfach, insbesondere wegen der Hotels. Die sollte man auch nicht unterschätzen. Hierzulande sind es eher 10kg #CO2e pro Nacht und Zimmer, in tropischen Ländern ist es aber schnell viel mehr. Aber exakte Daten? Pustekuchen. https://www.heise.de/ratgeber/Umweltbewusste-Reisen-Ob-und-wie-das-moeglich-ist-7470117.html

Der Begriff #Klimaneutralität ist #Greenwashing. Leider wurde der Begriff aber in der aktuellen Bedeutung von den Konserven eingeführt. Gleicher Unsinn wie #Tierwohl (Dank #Klöckner)

Klimaneutralität bedeutet #CO2e Life Cycle gleich 0 Gramm, fast keine Technik ist klimaneutral!

I am maths dyslexic and need #help

The update to the 2019 IPCC Special Report on Ocean and Cryosphere https://iccinet.org/statecryo2022/ chapter 4 states that CO2e from permafrost at current policy scenario requires removal per century of 400Gt CO2.
(Yes, permafrost is officially thawing and it is officially now requiring CO2 removal.)

The report doesn't say but I assume they use the official GWP by UNEP, 25 over 100 years.

How do I back-calculate those 400Gt CO2e to see how much methane it is that's going to be released per decade?

My calculation ends in a crazy warming of 1.6ºC per decade from permafrost thaw. Can you point me to where my mistake is?

It goes like this:
400Gt CO2e / 25 = 16Gt? If true, then CH4 from permafrost per decade is 1.6Gt. If true, and if the OH-sink stays the same, it'd mean 1.6ºC warming each decade.

Why 1.6ºC/decade:
*because #AR6-WG1 states that 2010-2019, methane caused 0.51ºC warming.
*from the Global Methane Project's top down view, we know that ~600Mt were released/yr
* and from NOAA, we know that the concentration was Ø 1830ppb in that decade.

It follows that in the decade 2010-2019, with the particular capacity of the OH-sink in that decade, 1Mt CH4 emissions resulted in 3.111 ppb and 0.001 ºC.

If these conditions stay the same, and if my back-calculation is correct for CO2e==>CH4, then the scientists are saying we're going to make permafrost thaw release 1.6Gt CH4 per decade which results in an immediate warming of 1.6ºC / decade, and to the weather and social chaos from this warming.

But I reckon, I must have omitted a zero somewhere. 0.16ºC feels more logical to me. I just don't know where I went wrong.

#Help #MathsDyslexia
#CO2e #GWP #CH4 #Permafrost #SROC #OHSink