Build a Tiny House (Sold Out on this date)
21st June 2019 Short Course Gain the practical experience and key skills to build a tiny house all of your own Whether you’re planning to build your own home or just want to pick up…
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Centre for Alternative Technology
Radical action is needed if we are to avoid dangerous climate breakdown. CAT offers practical solutions and hands-on learning to help create a zero carbon world.
Learn to build a natural house
Start learning a host of building techniques and get experience using a wide variety of natural building materials.
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Please sign CAT's petition calling on the UK & devolved governments to produce an urgent climate emergency action plan.
Inspiring Action
Inspire action on climate change by donating to CAT today
New courses at CAT Graduate School for 2019
MSc Green Building*, MSc Sustainable Ecology* & MSc Sustainability and Behaviour Change*
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What's on
The Diversity of Invertebrates in West Wales
21st June 2019 Short Course Take an up-close look at a creepy crawly world. We share our world with an abundance of fascinating creatures, but the smallest of these are often overlooked. Learn about the…
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Identifying Flowering Plants
28th June 2019 Short Course Gain skills and confidence in identifying wild and garden varieties. Don’t know your daisies from your dahlias? Or maybe you have good general plant knowledge but want to be able…
Read MoreGraduate School of the Environment
Gain the knowledge and skills to help address environmental change. CAT’s postgraduate courses are respected across the world, providing a big-picture, integrated approach to sustainability.
Zero Carbon Britain
To tackle climate change, all emissions that can go to zero must go to zero – as rapidly as possible. CAT’s Zero Carbon Britain research shows how this can be done using technology available today.
Educational Trips
Bring your school, college or educational group to CAT and start exploring positive solutions to environmental challenges.
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Short Courses
Gain practical skills and hands-on experience with one of our day, weekend or week-long sustainability courses.
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Latest from the CAT Blog
UK commits to net zero by 2050 – CAT response
12th June 2019 Responding to the announcement of the UK’s commitment to reaching net zero greenhouse gas emissions by 2050, the Centre for Alternative Technology (CAT) is calling for the creation of a…
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Eye in the Sky
31st May 2019 An innovative new project combining state-of-the-art monitoring methods with citizen science will provide a picture of the changing landscape of ‘Living Wales’, helping improve environmental decision making. Brook Woodman reports.
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Natural Urbanism
31st May 2019 In the second in our series on sustainable cities, Paul Chatterton looks at how designers are connecting to and learning from the natural world, helping transform the relationship between urban dwellers…
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Free Information Service
Wondering what you can do in your own home to help combat climate change? CAT’s free information service offers independent and impartial advice on a wide range of areas to help you live more sustainably.
Solar Photovoltaic (PV)
Generate electricity from the sun. Photovoltaic (PV) solar panels convert sunlight into electricity. You can use the electricity to power domestic appliances, and export excess energy to the grid. This…
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Natural and low impact building materials
Our page on low energy buildings talks about the ’embodied energy’ of building materials. This is the energy that was used in extraction, manufacture, and transportation. Another way of assessing…
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Energy saving at home
From the very earliest days of CAT we have focused on building and renovating to high levels of insulation, so that we consume less energy. Reducing our energy demand makes…
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