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.

Summer at CAT

There's loads of family events taking place at CAT this summer

Learn to build a natural house

Start learning a host of building techniques and get experience using a wide variety of natural building materials.


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*

Visit CAT

There’s so much to see and do at CAT, with hands-on learning for all ages. Visit us to explore all aspects of green living.

What's on

Landscape around CAT

Introduction to Rewilding (Sold out)

Principles and practices of ecological restoration. Recent years have seen a surge in popular interest in rewilding, an idea that is rocking the world of conservation, agriculture and land management.…

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natural house

Build a Natural House (Sold out)

Explore using natural building materials and begin to develop the skills needed to build your own outhouse, garden retreat or even extend or build your own home. Whatever your grand…

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A Way of Building: Using locally sourced materials (Only one place left on this course)

Building using locally sourced materials can help to ensure your structure is low impact and ecologically sound. This course provides hands-on experience in designing and building a structure from scratch,…

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Graduate 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

Peoples Assembly in Wales

Paul Allen talks Zero Carbon Britain at the first ever ‘Climate Emergency People’s Assembly’

What radical action is needed to avert the climate crisis? Initiated by Extinction Rebellion, sponsored by Welsh Assembly Members Jenny Rathbone (Labour) and Llyr Gruffydd (Plaid Cymru), and held in…

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UK Houses of Parliament

Culture Declares!

Culture Declares Emergency is a powerful emerging network of creative practitioners and organisations. Since its launch in April, around 450 individual artists, groups, networks and venues including the Royal Court, Battersea Arts…

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‘The Time is Now’ – Mass-lobby of Parliament for climate emergency action!

On Wednesday 26th June the Climate Coalition organised the ‘Time is Now’ mass lobby where thousands of people from all across the country got the chance to meet their MP…

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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)

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

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

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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CAT skyline


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