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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.

Zero Carbon Britain course: 4 - 5 December 2019

Gain an in-depth look at our Zero Carbon Britain project and explore the changes needed to rapidly reduce our emissions.

Graduate School - applications now open

Explore sustainability and how you can help create change on one of our postgraduate courses.

Inspiring Action

Inspire action on climate change by donating to CAT today

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

woodlands at CAT

Sustainable Woodland Management (Sold out)

The theory and practice of managing woodlands in a way that benefits people and wildlife. Winner of the Woodlands Awards Best Woodlands Course 2017, this highly practical five-day course gets…

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Compost toilet at CAT

Compost Toilets (Sold out)

A Beginner’s Guide to the Compost Toilet – Understanding the biology behind humanure Get a foundational understanding of the principles, benefits and limitations of compost toilets. This is not a…

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reed beds

Reedbeds and Waste Water Management (Sold out)

Off-grid sewage and water treatment systems If you’re living or working in a remote location and need low impact, eco-friendly options for waste water management, CAT is the place to…

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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

Short Course Stories: CAT course inspires a world’s first

In 2016 Chuck Maffett attended a ‘Building with Rammed Earth’ course at CAT, since then he has gone on to set up his own business, eco earth walz making prefabricated…

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CAT Conference 2019

We had an exciting time at the CAT Conference this year, with lots of inspiring conversations, great speakers, a memorable ceilidh and highly engaged participants. The theme this year was…

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Composting - Toilet

The joys of compost toilets

Compost toilets come in all shapes and sizes, from hand built cabins on the mountainside, to off the shelf systems. You may have used one at a festival, nature reserve,…

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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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