Hey CATs,

Welcome to issue 307 of the ClimateAction.tech (CAT) Newsletter - your weekly summary of what's happening inside the CAT Slack community (join here and check out our onboarding checklist), and in the wider world of climate and tech.

Remember you can unsubscribe from this newsletter at any time - the link is at the bottom.

Stay curious 😌💚🐱

CAT Community News

#️⃣ ️Slack highlights

#2-greener-tech: To help define CATs position on climate issues, CAT volunteer M asked you all to share climate solutions you're working on or climate solutions you feel strongly about (either in favor or against) - share in the thread

#3-questions-and-ideas: M asked whether anyone managed to get their company to adopt a policy on adoption and usage of AI based tools and plenty of wisdom has been shared in the thread already

#cat-systems-series: CAT volunteer S shared some interesting articles that inspire a systems approach

📍 Local highlights

Meet in #local-austria: At the Permacomputing meetup on Apr 14 there'll be a talk about measuring the carbon footprint of microservices

Volunteer in #local-chicago: CAT volunteer J highlighted that Chicago Climate Connect has been rolling out a formal volunteer framework

Take action in #local-uk: M shared a Call for Evidence from the Environmental Audit Committee for an inquiry into data centres

📅 CAT events

Apr 9 - Meme-tivisim - Rethinking AI's environmental impact in #local-london [in-person] - a 2-hour, fun, hands-on, in-person workshop where we'll explore how memes can help us re-think the environmental impact and sustainability of AI & ML

For more Responsible AI series events keep an eye on #4-cat-events and our Luma

🍩 Community networking

Every 2 weeks, we match 2-3 CATs so you can connect over a quick 30-minute call. Join #cat-roulette, pick your region and wait for a message from Donut. The next round of matches will go out on Fri, Mar 20th. More info.

Media, events, and news

▶️ CAT videos

10-15 minute videos providing accessible explainers to climate related issues.

PBS Terra: The Hidden Danger of the Northern Lights

At a rocket test range in Alaska, scientists are firing rockets into the northern lights. They want to better understand the aurora because they are the visible fingerprint of a powerful and dangerous force that can disrupt GPS, satellites, and power grids. We join them at a launch to find out what they've discovered. Hosted by Joe Hanson from Be Smart, Overview uses stunning aerial and nature footage to reveal the hidden wonders that shape our planet.

🎤 Podcasts

The latest climate-related podcast episodes. Don't forget, if you're looking around, there's a list of podcasts maintained by CATs - and there's a full playlist of all the podcast episodes shared in this newsletter this year so far, on ListenNotes - catch up with last year's here!

Techologie: Decolonize tech with Rania Youssef

Decolonizing the digital world is a topic that still receives little media attention and is rarely explored, even here on this podcast. We had the opportunity to discuss this subject with David Maenda Kithoko about four years ago on Techologie (episode 67), and he explained the connection between wars, deaths, rapes, and the smartphones in our pockets.\nIt is important to consider more generally the decolonization of ecology, especially here in the global north. Let's continue exploring this topic with Rania Youssef, a Back End Developer, queer activist and founder of Tribe-X in order to decolonize tech.

Catalyst: AI scaling pathways: on grid, on edge, off grid, off planet

As demand for data center power skyrockets, available options to provide that power have dwindled. And cohesive frameworks for finding sustainable generation remain few and far between.

In this episode, Shayle speaks with Jake Elder, senior vice president of research and innovation at Energy Impact Partners. The two colleagues dig into the four main generation solutions — on grid, off grid, on edge, and off planet – and consider the viability of each in the years to come.

Environment Variables: Shift-Left Sustainability

This Week in Green Software, Valeria, Adi, and Oli come together to explore the concept of Shift-Left Sustainability—the idea that environmental impact should be considered early in the software development lifecycle rather than after deployment. They discuss how better measurement, developer tooling, and practical incentives can help teams build more efficient and environmentally responsible software, why sustainability should be treated more like security, and highlight growing government interest in digital sustainability.

Green IO: What the Research Says About Green IT Solutions, with Gauthier Roussilhe

The sustainability story of IT is deeper than you realise. And in order for us to find the real answers, we need to read between the lines.

On today's episode of Green IO, Gaël is joined by Gauthier Roussilhe, an out-of-the-box thinker, researcher and head of R&D at Hubblo. Gauthier takes us on a deep dive into the findings of one of his latest environmental studies… and explains why we need to embrace a counter-intuitive approach when looking at the data.

Energ'ethic: She's Already Leading the Project. Why Isn't the System Designed Around Her?

Women are already the primary decision-makers in household renovation and low-carbon upgrades. They manage timelines, handle budgets, research materials, anticipate health impacts, and carry the cognitive load of the entire process. The retrofit system, however, is not designed around them.

In this episode, Marine Cornelis speaks with Ellora Coupe, founder of Her Own Space, about the structural gap between where retrofit happens and how it is designed. The conversation examines why trust, not technology, is the real barrier to household action, why peer-based learning models fill a gap that institutional tools cannot, and what it would take for funding and policy frameworks to account for the full complexity of human-centred change.

📅 Submitted events

Want an event listed here? Use this event listing form to submit the details so we can add it in the newsletter.

Wednesday Mar 18, 2026 - Green AI: Making Machine Learning more Sustainable

Charles Humble is coming to talk about the carbon footprint of artificial intelligence as well as some practical tips on how to minimise this through the different phases of AI development.

Monday Mar 23, 2026 - Job Interviewing Program

Job interviewing is a muscle you have to build and in this program, we’re going to help you train that muscle. You will learn to tackle the fundamental elements of job interviewing, get tons of practice and feedback, and leave with the confidence to face any interview question.

Monday Mar 23, 2026 - Sustainability Creatives Interviewing Program

The Interviewing Program is a 4-week course for mission-driven creatives preparing for climate jobs. Through live workshops, practice interviews, frameworks, and feedback, participants build confidence and learn to communicate clearly and authentically to land their next role.

Wednesday Mar 25, 2026 - Climate Tech Time

If you work in climate tech and want to engage in meaningful conversations, this is the place to be. We also offer additional programming earlier in the day to deepen connections and provide more opportunities for collaboration.

Thursday Mar 26, 2026 - UX Jumpstart: Design products that drive real action for climate tech

Working on digital products leveraging environmental data? Join us for a practical 1-hour session designed for founders, technical, product or marketing leads working at the intersection of tech, climate, and data.

Friday Mar 27, 2026 - How to (re)discover meaning in a world in transition ? The 2-Hills Model

A DAY FOR YOU💚An inspiring day together to mark Kosmogonia's research results demonstrating the rise of a global movement aiming to find alignment and purpose in a world in transition. Based on a unique sociological model in 5 steps based on 150+ life stories.

Wednesday Apr 01, 2026 - Small Group Networking - Q2 2026

Join the Small Group Networking virtual meetup by Climate Conscious Leaders to connect with product professionals passionate about sustainability. Exchange ideas and build meaningful connections in small breakout groups.

📰 News Highlights

Oilprice.com: Trump's Alaska Energy Revival Hits a Wall as Auction Draws Zero Bids

Trump reopened Alaska to fossil fuel exploration as part of his pro-oil energy agenda, but a recent Cook Inlet offshore lease sale drew no bids despite the administration's push.

Gov Info Security: New European Emissions Regs Include Cybersecurity Rules

Automakers are generally on track to implement new European Union cybersecurity requirements embedded into tailpipe emissions regulations instigated by the long shadow of Volkswagen's emissions scandal, but there could be a clash between those new rules and others that are intended to give Europeans a free choice of repairers for their vehicles.

Intelligent Living: When is Local AI Greener than the Cloud? How Personal AI PCs Could Shift Emissions and E-Waste into Your Zip Code

The era where artificial intelligence existed solely within the confines of remote hyperscale data centers has ended. Today, these powerful models hum across our office desks and within university laboratories, powered by compact personal AI supercomputers that deliver professional-grade capability without a cloud connection. Localized computing raises a deceptively simple question: Is running AI locally actually better for the environment than relying on the cloud?

EnergyMix: The Iran War Is Also a Climate War

A new analysis points to toxic runoff, extreme acid rain, heavy marine pollution, oil and gas fires, with grave ecological consequences. 

Irish Times: Environmental groups seek High Court review of fossil-fuel allowances for data centres

Rules allowing new data centres to use fossil fuels to generate a portion of their own electricity are facing a High Court challenge by three environmental groups.

Friends of the Irish Environment, Friends of the Earth Ireland and ClientEarth have applied for a judicial review of the rules which they claim breach Ireland's climate targets and the underlying Climate Action and Low Carbon Development Act.

Reasons to be Cheerful: The German City That Defied McDonald's and Dumped 'To-Go' Waste

Tübingen's hard-won crusade is a lesson in how to deflect single-use packaging from landfills — and life itself.

💚 Papers We Love 💚

Communications Sustainability: Developer engagement in open-source software's green transition

Software development plays a central role in digital sustainability, yet developers' role and engagement remains understudied. Here this paper analyse nearly a decade of developer discussions available on the code repository Github on Ethereum, a widely used open-source blockchain platform. Using topic modelling, with interpretation supported by large language models and a sustainability framework for software systems, it traces how economic, environmental, social, individual, and technical sustainability themes emerge and evolve over time.

💼 Jobs

Remember only jobs listing salary ranges are listed here - to get your job listed, you need to list a salary range. Folks can still look in the #jobs channel. Remember: if you're looking for advice finding a role, check our #climate-careers channel.

Vizzuality - Back End Engineer - 30.000 Eur to 49.000 Eur depending on experience - Permanent - Totally remote

We're on the lookout for a Back-End Engineer with experience and proficiency in NodeJS/TypeScript/Python and a strong DevOps mindset to join our team at Vizzuality.

We expect our engineers not just to write code, but also to deploy, operate, and maintain the infrastructure it runs on.

At Vizzuality, our purpose is to reach a fair and sustainable planet by creating tools that radically empower people to make positive changes now. We’re always looking for passionate people who strive to use their creativity and skills to make a difference in people’s lives and help make the world a better place.

Bioregional - Insights & Engagement Coordinator (Corporate Sustainability) - £28,500-34,000 - Permanent - Flexible - remote ok

We're looking for a bright, organised and creative Insights & Engagement Coordinator who is passionate about sustainability and supporting businesses on their transformation journeys. Deadline: 9am Monday 2 March 2026

Vizzuality - Digital Project Manager - €30,000 - €40,000 Euros per year - Permanent - Totally remote

We're hiring a Project Manager with digital project experience, a high level of ownership, organization, and collaboration skills.

WHY US?

At Vizzuality, our purpose is to reach a fair and sustainable planet by creating tools that radically empower people to make positive changes now. We’re always looking for enthusiastic people who strive to use their creativity and skills to make a difference in people’s lives and help make the world a better place. We design and develop data-driven tools and applications for international organizations focusing on climate change, biodiversity, and inequality.

WHAT'S IN IT FOR YOU?

Collaborate with a diverse team of professionals. Develop tools that are informing how to tackle climate change worldwide. Enjoy remote work, flexible schedules, and paid time off. Experience a work culture that values autonomy, community and growth.

Support our work

You can support us financially on Open Collective.