Jaroslav Holub
@jholub.bsky.social
📍 Amsterdam
👷♂️ @rejobs.org
👨🏼🎓 OU Env Sci alumni, UHK CS alumni
🚲 Probably riding a bicycle right now
👷♂️ @rejobs.org
👨🏼🎓 OU Env Sci alumni, UHK CS alumni
🚲 Probably riding a bicycle right now
Reposted by Jaroslav Holub
A decade of change.
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
September 17, 2025 at 1:25 PM
A decade of change.
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
Reposted by Jaroslav Holub
Latest data from @copernicusecmwf.bsky.social show that August 2025 was the third warmest on record globally (after 2023 and 2024).
Europe had its fourth warmest summer season, with some countries such as the UK having their warmest summer on record.
Europe had its fourth warmest summer season, with some countries such as the UK having their warmest summer on record.
September 9, 2025 at 6:43 AM
Latest data from @copernicusecmwf.bsky.social show that August 2025 was the third warmest on record globally (after 2023 and 2024).
Europe had its fourth warmest summer season, with some countries such as the UK having their warmest summer on record.
Europe had its fourth warmest summer season, with some countries such as the UK having their warmest summer on record.
Reposted by Jaroslav Holub
This is not a particularly new finding; as Susan Soloman and colleagues put it in their groundbreaking 2009 paper, "the climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop" www.pnas.org/doi/10....
September 4, 2025 at 10:48 PM
This is not a particularly new finding; as Susan Soloman and colleagues put it in their groundbreaking 2009 paper, "the climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop" www.pnas.org/doi/10....
Reposted by Jaroslav Holub
It is worth noting that Chinese scientists, in a Chinese-built bathyscaphe, achieved this feat. Over the last few decades, Chinese ocean science capabilities have advanced significantly, and they will overtake the US if the US doesn't increase its ocean science funding. We're doing the opposite.
This surprisingly relaxing footage is from SIX MILES under the ocean – and it’s the deepest ecosystem yet discovered
August 2, 2025 at 9:28 AM
It is worth noting that Chinese scientists, in a Chinese-built bathyscaphe, achieved this feat. Over the last few decades, Chinese ocean science capabilities have advanced significantly, and they will overtake the US if the US doesn't increase its ocean science funding. We're doing the opposite.
Reposted by Jaroslav Holub
Solar leaders China and the EU are meeting today for their annual summit 🇨🇳🇪🇺
They are both at the forefront of the global transition to a clean, electrified economy ☀️
They are both at the forefront of the global transition to a clean, electrified economy ☀️
July 24, 2025 at 7:01 AM
Solar leaders China and the EU are meeting today for their annual summit 🇨🇳🇪🇺
They are both at the forefront of the global transition to a clean, electrified economy ☀️
They are both at the forefront of the global transition to a clean, electrified economy ☀️
Reposted by Jaroslav Holub
1️⃣ "Pumped storage hydropower operation for supporting clean energy systems"
This Review looks at how can power systems balance supply and demand using pumped hydro storage facilities:
www.nature.com/articles/s44...
This Review looks at how can power systems balance supply and demand using pumped hydro storage facilities:
www.nature.com/articles/s44...
July 22, 2025 at 9:06 PM
1️⃣ "Pumped storage hydropower operation for supporting clean energy systems"
This Review looks at how can power systems balance supply and demand using pumped hydro storage facilities:
www.nature.com/articles/s44...
This Review looks at how can power systems balance supply and demand using pumped hydro storage facilities:
www.nature.com/articles/s44...
Reposted by Jaroslav Holub
Reflecting on temperatures over the last three months, all latitude bands observed temperatures warmer than average.
Plot shows zonal-mean temperature anomalies, where latitude = y-axis (not scaled by distance). Data from GISTEMPv4 using their 1951-1980 baseline.
Plot shows zonal-mean temperature anomalies, where latitude = y-axis (not scaled by distance). Data from GISTEMPv4 using their 1951-1980 baseline.
July 20, 2025 at 12:54 PM
Reflecting on temperatures over the last three months, all latitude bands observed temperatures warmer than average.
Plot shows zonal-mean temperature anomalies, where latitude = y-axis (not scaled by distance). Data from GISTEMPv4 using their 1951-1980 baseline.
Plot shows zonal-mean temperature anomalies, where latitude = y-axis (not scaled by distance). Data from GISTEMPv4 using their 1951-1980 baseline.
Reposted by Jaroslav Holub
NEW | Solar generated a RECORD 22% of EU electricity in June 2025, becoming the top power source for the first time ever☀️
Record #solar in most EU countries helped power systems grapple with high demand from ongoing heatwaves⚡
ember-energy.org/lat...
Record #solar in most EU countries helped power systems grapple with high demand from ongoing heatwaves⚡
ember-energy.org/lat...
July 10, 2025 at 7:00 AM
NEW | Solar generated a RECORD 22% of EU electricity in June 2025, becoming the top power source for the first time ever☀️
Record #solar in most EU countries helped power systems grapple with high demand from ongoing heatwaves⚡
ember-energy.org/lat...
Record #solar in most EU countries helped power systems grapple with high demand from ongoing heatwaves⚡
ember-energy.org/lat...
Reposted by Jaroslav Holub
Newspaper coverage of climate change around the globe dropped 6% from May to June 2025 -- and by 28% compared to June 2024, despite increasing frequency and severity of climate-fueled extreme weather events.
Read more from the @media-climate.bsky.social here: mecco.colorado.edu/summaries/is...
Read more from the @media-climate.bsky.social here: mecco.colorado.edu/summaries/is...
July 8, 2025 at 10:51 PM
Newspaper coverage of climate change around the globe dropped 6% from May to June 2025 -- and by 28% compared to June 2024, despite increasing frequency and severity of climate-fueled extreme weather events.
Read more from the @media-climate.bsky.social here: mecco.colorado.edu/summaries/is...
Read more from the @media-climate.bsky.social here: mecco.colorado.edu/summaries/is...
After spending a day smashing my keyboard and cursing, I suggest everybody: Do NOT upgrade to v5 of the @cloudflare.social #Terraform Provider
For reference: github.com/cloudflare/t...
For reference: github.com/cloudflare/t...
ℹ Update on Terraform v5 - May 12th 2025 · Issue #5573 · cloudflare/terraform-provider-cloudflare
Current status Earlier this year, we announced the launch of the new Terraform v5 Provider. Unlike the earlier Terraform providers, v5 is automatically generated based on the OpenAPI Schemas for ou...
github.com
July 8, 2025 at 9:28 AM
After spending a day smashing my keyboard and cursing, I suggest everybody: Do NOT upgrade to v5 of the @cloudflare.social #Terraform Provider
For reference: github.com/cloudflare/t...
For reference: github.com/cloudflare/t...
Le Tour starting today! www.youtube.com/watch?v=jGOI...
Can Pogačar Lose? | The Big GCN Tour de France Preview Show!
YouTube video by GCN Racing
www.youtube.com
July 5, 2025 at 8:21 AM
Le Tour starting today! www.youtube.com/watch?v=jGOI...
Reposted by Jaroslav Holub
It seems the future of agentic platforms will be more deterministic by leveraging traditional automation techniques. In this case Claude Code is adding support for lifecycle hooks, which allow you to write shell commands to ensure certain actions always happen. docs.anthropic.com/en/docs/clau...
July 1, 2025 at 1:45 PM
It seems the future of agentic platforms will be more deterministic by leveraging traditional automation techniques. In this case Claude Code is adding support for lifecycle hooks, which allow you to write shell commands to ensure certain actions always happen. docs.anthropic.com/en/docs/clau...
This is a very important point 👇
One of the challenges to understanding climate change is that extremes don't necessarily change in the same way as averages.
In Western Europe, for example, the hottest day of the year is warming noticeably faster than the average summer day.
In Western Europe, for example, the hottest day of the year is warming noticeably faster than the average summer day.
July 4, 2025 at 5:06 AM
This is a very important point 👇
Reposted by Jaroslav Holub
Clean sources met 70% of the rise in power generation in BRICS countries last year, with #solar alone providing over a THIRD ☀️
This marks a major shift to the previous decade, when clean sources were 50/50 with fossil fuels 📈
ember-energy.org/lat...
This marks a major shift to the previous decade, when clean sources were 50/50 with fossil fuels 📈
ember-energy.org/lat...
July 4, 2025 at 3:00 AM
Clean sources met 70% of the rise in power generation in BRICS countries last year, with #solar alone providing over a THIRD ☀️
This marks a major shift to the previous decade, when clean sources were 50/50 with fossil fuels 📈
ember-energy.org/lat...
This marks a major shift to the previous decade, when clean sources were 50/50 with fossil fuels 📈
ember-energy.org/lat...
Updated my GitHub profile github.com/jrslv
June 29, 2025 at 10:37 AM
Updated my GitHub profile github.com/jrslv
Reposted by Jaroslav Holub
June 29, 2025 at 1:42 AM
Reposted by Jaroslav Holub
Averaged together, all latitude bands observed warm temperature anomalies in May 2025.
Plot shows zonal-mean surface air temperature anomalies, where latitude = x-axis (not scaled by distance). Data from NASA/GISS GISTEMPv4 using their 1951-1980 reference period.
Plot shows zonal-mean surface air temperature anomalies, where latitude = x-axis (not scaled by distance). Data from NASA/GISS GISTEMPv4 using their 1951-1980 reference period.
June 25, 2025 at 12:33 PM
Averaged together, all latitude bands observed warm temperature anomalies in May 2025.
Plot shows zonal-mean surface air temperature anomalies, where latitude = x-axis (not scaled by distance). Data from NASA/GISS GISTEMPv4 using their 1951-1980 reference period.
Plot shows zonal-mean surface air temperature anomalies, where latitude = x-axis (not scaled by distance). Data from NASA/GISS GISTEMPv4 using their 1951-1980 reference period.
TIL: the word algorithm was derived from al Khwarizm, which was a major 11-13th century empire in the area of today’s Iran, Afghanistan, and Turkmenistan.
I always though the word has something to do with the words logic and rhythm 🥁
I always though the word has something to do with the words logic and rhythm 🥁
June 19, 2025 at 6:25 PM
TIL: the word algorithm was derived from al Khwarizm, which was a major 11-13th century empire in the area of today’s Iran, Afghanistan, and Turkmenistan.
I always though the word has something to do with the words logic and rhythm 🥁
I always though the word has something to do with the words logic and rhythm 🥁
Dunno what these #bicycle tires are made of, but they are absolutely indestructible. Thousands of kilometers and not a single puncture. Highly recommended! “Schwalbe Marathon Plus Tour”
June 15, 2025 at 7:04 PM
Dunno what these #bicycle tires are made of, but they are absolutely indestructible. Thousands of kilometers and not a single puncture. Highly recommended! “Schwalbe Marathon Plus Tour”
Reposted by Jaroslav Holub
If you believe this planet is more than a receptacle for trash and plunder by the short-sighted at the cost of our collective health and future generations, then you’re a match for my 100% FREE newsletter, “Green World Now”.
Join me and the eco community now!👇🏼
subscribepage.io/GreenWorldNow
Join me and the eco community now!👇🏼
subscribepage.io/GreenWorldNow
The Green World Now Newsletter
Official Green World Now newsletter subscribe page.
subscribepage.io
May 27, 2025 at 2:37 AM
If you believe this planet is more than a receptacle for trash and plunder by the short-sighted at the cost of our collective health and future generations, then you’re a match for my 100% FREE newsletter, “Green World Now”.
Join me and the eco community now!👇🏼
subscribepage.io/GreenWorldNow
Join me and the eco community now!👇🏼
subscribepage.io/GreenWorldNow
Reels are poison and history books an antidote
May 24, 2025 at 12:46 PM
Reels are poison and history books an antidote
For all those who want to use AI in their product but don't know how 🙃
www.npmjs.com/package/is-e...
www.npmjs.com/package/is-e...
is-even-ai
Check if a number is even with the power of ✨AI✨. Latest version: 1.0.5, last published: 7 months ago. Start using is-even-ai in your project by running `npm i is-even-ai`. There are no other projects...
www.npmjs.com
May 20, 2025 at 4:32 AM
For all those who want to use AI in their product but don't know how 🙃
www.npmjs.com/package/is-e...
www.npmjs.com/package/is-e...
Reposted by Jaroslav Holub
The top solar nations might surprise you: Netherlands leads per capita, Greece gets 28% of its power from solar, and Poland just hit #13 globally. It’s not just about big installs—it's about smart policy, rooftop adoption, and clean power share. The solar revolution is spreading globally fast! ☀️⚡
The Best Solar Power Countries in the World Will Shock You - CleanTechnica
Sign up for CleanTechnica's Weekly Substack for Zach and Scott's in-depth analyses and high level summaries, sign up for our daily newsletter, and/or follow us on Google News! I just wrote an article ...
cleantechnica.com
May 19, 2025 at 8:09 AM
The top solar nations might surprise you: Netherlands leads per capita, Greece gets 28% of its power from solar, and Poland just hit #13 globally. It’s not just about big installs—it's about smart policy, rooftop adoption, and clean power share. The solar revolution is spreading globally fast! ☀️⚡
Opened “X” after a couple months, and I can report that nothing much has changed 😄
May 19, 2025 at 8:06 AM
Opened “X” after a couple months, and I can report that nothing much has changed 😄