ClimateAction.tech logo


We are tech workers seeding climate action in companies, organisations and industries through deep, self-organized community building and support.

Our vision: A transformed tech industry that makes climate a priority, and takes responsibility for social impacts and ecological limits.

The climate crisis requires a serious and sustained response from across civil society, and that includes the tech sector and technology professionals. ClimateAction.tech’s purpose is to empower technology professionals to play our part — to meet, discuss, learn and take climate action.

Our Beliefs

Our beliefs are based on the following Foundational Facts:

  1. We are at the beginning of a climate catastrophe.Our actions today will determine how severe the crisis becomes.
  2. The climate crisis is caused by burning fossil fuels and mass exploitation.The tech industry is part of these systems, and often accelerates these activities. It is itself a large contributor to CO2 emissions. In both cases, we can change this for fairer, more equitable outcomes.
  3. Climate impacts are not fairly distributed.

Our Story

The ClimateAction.tech community formed when a previously unaffiliated set of tech sector workers and employees found each other and bonded on a shared vision — to volunteer their own time, and to support and engage the entire tech sector in addressing the climate crisis.

This includes deep respect for the many existing efforts to tackle and address climate, an awareness of the privileged position many workers hold in tech, especially in wealthy countries, and a desire to contribute what we can through our time, skill-sets, positions and other possible resources.

Our approach is to advocate internally within tech, and to collaborate externally to support the broader climate movement from tech.

Since forming, our membership has ballooned globally, and now involves vibrant input from students and graduates, through managers, designers, developers and creatives who work in tech across a wide array of industries, all the way through to senior figures at the world’s largest tech companies.

Our People


Chris Adams

Heather Baden

Portrait of Melissa Hsiung

Melissa Hsiung

Portrait of Sandra Pallier

Sandra Pallier


Portrait of Andy McWilliams

Andy McWilliams

Portrait of Asim Hussain

Asim Hussain

Portrait of Sam Phillips

Sam Phillips


  • Alicia Wong
  • Alja Isaković • Product Manager • ialja.com
  • Andrea • Twitter
  • Andrew O’Regan (he/him) • UX/Service Designer • fantoraygun.com • LinkedIn
  • Antonio Roque • CS student and Junior Digital Project Manager
  • Brittany Fischer • UI/UX Developer
  • Deena Rosen (she/her) • Design Advisor • deenarosen.com • LinkedIn
  • Evan Hahn (he/him) • Programmer • evanhahn.com • Twitter
  • Hannah Smith (she/her) • Freelance WordPress developer and speaker • Twitter • LinkedIn
  • Jemma Harwood • Digital design + video
  • Joshua Cortez • Data scientist
  • Katrin Apel • Freelance Product Manager, Developer
  • Kaushal Bhavsar (he/him) • Computer Vision Engineer • LinkedIn
  • Luís Cruz • Assistant Prof. at TU Delft • Twitter
  • Luke Watts (he/him) • Software Engineer • thisis.la
  • Marketa Benisek • Climate Reality Leader
  • Marwa Eltaib
  • Matthew Ferry (he/him) • Data Wizard & Software Engineer
  • Nadia Zunarelli (she/her) • UX Designer • LinkedIn
  • Natalia Waniczek (she/her)
  • Noel Anthony • Copywriter and Content Marketer
  • Pia Faustino • Head of Social Impact
  • Piyush Mishra • Engineer
  • Rebecca Stevenson
  • Sarah Hsu • Cloud Platform Engineer
  • Sofia Rufino • Energy and Environmental Engineering
  • Stefanie Mühlbacher • UX Designer
  • Su Hang • Data Scientist


  • David Cairns
  • Chelsea Mozen
  • Sara Diaz
  • Peter W
  • Tom Jowett
  • Sean O’Connor
  • Steven Lemeshow
  • Bryce Walsh
  • Yarin Snapir
  • Khaled Arnaout
  • Sarah Hoessler
  • Laurence
  • Erin Duddy