ClimateAction.Tech is a free community for people working in the tech industry who want to take action to reduce the impact of climate change.

There are no requirements to join the community's Slack group. This online group has over 2500 members from all over the world. Members come from all sorts of different backgrounds, roles, and experiences. Indeed, it's a really cross-disciplinary group. Many minds come together and think of new ways to reduce the impact on climate that the technology industry has.

You can join the Slack group to interact with other members in the diverse channels. You can also hear about new community events via the Slack group. If you participate in the channel "#cat-roulette", you will be able to easily network with others. This channel allows you to meet fellow climate-conscious technologists by pairing you with a randomly selected member of the community, every two weeks.

Besides the Slack channel, the community has several other events you can attend. On the one hand, every Friday at 11 AM members meet for 11 minutes. This meeting exists to talk about climate change and support youth climate strikes. On the other hand, you can also participate in bi-monthly events, the "CAT Coffees". These events are online and gather participants to talk about specific topics. Every member votes on what specific topic they want to talk about, and votes dictate what will be discussed in the event.

Additionally, you can participate in CAT Salons. In these events, the community brings diverse industry experts. They talk about climate change and what can tech companies do to contribute to this global issue. Past events are on CAT's YouTube channel for you to watch whenever you want. Lastly, you can also read CAT's blog and action guides to get ideas and learn how to take action today.

YouTube video


  • Membership: Free Community
  • Year Founded: 2018
  • Founders:

    Andrew McWilliams

  • Amount of members: 2,500
  • Online Group: Yes
  • Job board: No
  • Language: English
  • Method: In Person, Virtual


Join a community of people who want to take action:
Members of the community are committed to taking action to fight climate change, in any way they can. You can join the Slack group to bounce off ideas with members and to think of practical solutions to a central problem of the 21st century.

Learn with CAT's content:
From their blog and action guides to the CAT Salon, where they bring industry experts to discuss different topics, the content created by the community will empower you to take action and start building a sustainable future.

Network with other climate-conscious people working in tech:
CAT is filled with diverse people from all across the world and from different backgrounds, roles, and experiences. You can get to know other people that are just as passionate about climate change as you, and think together about innovations the technology industry can implement to be more sustainable.



No requirements.



Every Friday at 11 AM, members of the community meet in an online event for 11 minutes, to talk about climate change and support youth climate strikes. On the other hand, you can also join bi-monthly events. These are called "CAT Coffee". Members of the community meet at these events to talk about specific topics. Participants propose topics and the event will revolve around the most voted ones.

Learning Events

CAT Salon are regular community events where they invite industry experts to talk about climate change, reduction in carbon emissions, and what can the technology industry do to help. You can view the calendar of upcoming events if you are a member of the Slack group. On the other hand, in the community's Meetup, you will also find upcoming and past events.

Additionally, collaborates in the creation of the Branch Magazine. This magazine tackles different issues on climate change and its writers think about how to build a sustainable internet. 

Networking Events

Community members interact in a Slack group. This online group is filled with people from diverse backgrounds, roles, and experiences, although all of them work in the technology industry. People gather in CAT's Slack group to think about how they can help fight climate change in their workplace, and how companies can contribute as well.

On the other hand, you can use the channel "#cat-roulette" to network with other members. This channel pairs you with a randomly selected member of the community every two weeks. It's a great way to have diverse conversations and think about climate change from different perspectives.

Lastly, members also occasionally meet in person. These meetings take place in different locations across London.

Content Library

You can watch past CAT Salons on the community's YouTube channel. On the other hand, ClimateAction.Tech works hard to spread knowledge and information about climate change. You can read their blog and bounce off ideas with the community. Additionally, they created some interesting action guides that teach you how to implement some climate-conscious actions, like reducing the carbon emissions of your website or starting a green team.


ClimateAction.Tech helps to spread free knowledge and information about climate change and how we can tackle it as a society. It also helps by educating people who work in the technology industry about the actions they can take to push their companies towards a sustainable future.


"If you are a technologist and want to take action let me please recommend joining @climateActTech- a great place to get support and ideas." -Hannah Smith

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