Category Archives: Miscellaneous

My talks

Co2 graph

Atmospheric Co2 over the last 800,000 years. Ice Ages have come and gone but the use of fossil fuels has pushed us into a new and dangerous place. My response is to write these blogs and to give talks about what humanity could and should do to bring us back toward a safer climatic future.

A couple of weeks ago, on the night before the election, I was giving a talk in Bridgnorth. The title was ‘Trump, the Carbon Bubble & the possibilities of a better future.’ I was putting forward a strongly political message and one man got up and left, saying he’d come to hear about climate change and not about politics. As I tried to point out to him, and to the hall full of people, effective action to reduce the dangers of climate change is essentially a set of political decisions. Humanity has the technologies to massively reduce all forms of pollution, and also the technologies to make the situation very much worse. What infrastructure we build, what taxes we implement, how we allocate resources and how we cooperate internationally are all fundamentally political decisions.

The first part of my talk was focused on the global political struggle as Trump, Putin, Saudi Arabia and the global oil, gas and coal corporations who fund them seek to keep the fossil fuel economy going as long as possible. On the other hand the vast majority of countries see the dangers of climate change and the positive opportunities in developing cleantech based economies. Some governments, such as that of the UK, are in a state of confusion, thinking they can do both. Most of the EU, China and many smaller countries are increasingly seeing the necessity and the benefits of ditching fossil fuels.

The second part of my talk focused on the emerging range of technologies that are making it possible to provide a good standard of living and a good quality of life to all 7.5 billion of us, and to do this in ways that reduce the dangers of climate change, reduce pollution and regenerate biodiversity. These positive possibilities get better by the day, yet our time window in which we need to take action gets narrower by the day.

I’ve a few more talks coming up, and I’d absolutely love to do more. One that I’m developing is titled ‘How to create a better world: fundamental principles.’ Another I’m working on is ‘Can we feed 9 billion people sustainably?’ I often do talks about what a 100% renewably powered global economy might look like and how we might get there. If you’d like me to come and speak, show slides, take questions and lead discussions with whatever group of people you’re involved with, please do get in touch.

After the Bridgnorth talk I got some really positive feedback, including that the man who left early complaining that the talk was too political had e-mailed the organiser later that evening to say it was probably his loss to have left early. Very encouraging!

Turkish holidays

Hagia Sophia

The extraordinary Hagia Sophia, built in 537 AD, for 1,000 years the world’s largest cathedral, later a mosque, now a museum. 

It’s been a couple of weeks since I posted a blog. We’ve been away in Turkey for a family wedding, and then a bit of sightseeing while we were there. Tragically so much of what one hears about Islam these days is in connection to terrorism. In Turkey we saw quite intimately the other side of Islam: extraordinary reaching out to create loving bonds between people, irrespective of differences across religion, language and culture. Personally I’m delighted by the growing cultural diversity within my own extended family and proud of the integrity all the individuals within it.

After the wedding our sightseeing took us to the ruins of Ephesus, to Selcuk, Milas and to Istanbul. We found the Turkish people very warm and welcoming, and very keen for tourists to come. Given the political problems over the last few months they naturally want political calm and economic recovery. I don’t think I’ve ever seen such a rich mix of archaeological and architectural treasures. Ephesus, the Hagia Sophia and the Blue Mosque were all extraordinary.

As this blog is usually about climate Change and energy issues it’s only fitting that I give them a mention. We saw lots of rooftop solar water heating systems, but plenty of scope for more. We saw remarkably few photovoltaic panels, but these are apparently just starting to take off in Turkey, and in 2013 Turkey opened its first small concentrating solar power station. Carbon emissions in Turkey are 4.4 tonnes per capita, but as this a county with huge solar potential this figure could be rapidly and beneficially reduced, but for that to happen Turkey needs peace. Many Turks are currently looking to neighbouring Syria with a sense of fear and dread that all that chaos and bloodshed could only too easily spread to Turkey. We share their desire for peace, for a calm evolution of democracy and a revived economy, ideally powered by the sun, and accessible to us via sustainable flight!

An Open Letter to Justin Trudeau


Congratulations on winning the Canadian election, and doing it in such style. Taking the Liberal Party from 34 to 184 seats was very impressive. Ousting the dreadful Harper administration is something many of us around the World would like to thank-you for. Well done!

The Paris Climate talks will be upon us in five weeks time. Justin, you and Canada have a choice. You could follow the dreadfully polluting path of the Harper administration with its reckless exploitation of the Alberta tar sands and its plans for Keystone XL. Alternatively Canada could be a Cleantec pioneer. Currently Canada’s per capita carbon emissions are 14.1 tonnes, a pretty dreadful statistic. However Canada is a country with many and varied resources and opportunities. Carbon emissions could be slashed while creating many social, economic and ecological advantages.

Canada has huge opportunities to develop its renewable power sector. Hydro is already important, but could be improved and expanded, particularly by developing pumped storage facilities. Wind, wave and tidal power all could be locally important. Solar power in its various forms could be surprisingly useful. Wood chip gasification, as pioneered in the Austrian town of Gussing, has vast potential. Promoting local renewable energy coops might be the best way to maximise local social, economic and ecological benefits. Perhaps the biggest single contribution could be made by adopting very strong energy efficiency standards across all parts of the economy. Improving the grid infrastructure generally and interconnections with your American neighbour would be useful: you could sell them more zero carbon electricity instead of oil from the tar sands of Alberta. A statement to that effect would really enhance Canada’s standing in the global community. I’d love to act as a consultant to help you bring this alternative vision into reality!

Best wishes


Obama’s speech

Since I wrote the last blog on Obama’s announcement for a 32% reduction in power station emissions by 2030 I’ve come across a video of his speech in full. It is one the best speeches by any incumbent political leader I’ve ever heard. Well worth watching the full 26 minutes of it!

The South West Coast Path

The South West Coast Path

The South West Coast Path

Colette and I started walking the South West Coast Path nine years ago, from Poole in Dorset, and hope to reach Minehead in Somerset in about six years time. We just got back from Cornwall, having walked the 61 miles between Falmouth and Penzance. Such a lovely coast, full of amazing contrasts, from the quiet sheltered tidal creeks of the Helford River and Gillan Creek to the wild and windswept headlands of the Lizard. The abundance of wildflowers was such a joy!

Our impressions were of a well cared for landscape, where a lot of human effort, much of it voluntary, has been put into protecting the biodiversity and improving access. Of course damage can still occur in many ways, from the minor acts of individual stupidity like dropping litter or the illegal digging of bait on the tidal mudflats to more major threats like the proposal to re-open and enlarge the Dean Quarry near St Keverne. This quarrying expansion could bring economic benefits to the area, and the stone is destined for the planned Swansea Bay Tidal Lagoon, which is an excellent renewable energy project. However enlarging the quarry could destroy the wonderful corals of the newly established Manacles Marine Conservation Zone. The question is whether the quarry can be developed in such a way that it brings maximum benefits while minimizing damage. Other threats include the macro threats of climate change and ocean acidification, which are both largely driven by carbon emissions, and where it is of no consequence whether the carbon in emitted in Cornwall, Australia or China. Continuing to protect and develop this magnificent coast requires a huge range of action at all levels, from reducing the litter dropped by individuals, to the careful consultation on the quarry plans and the global transition to a low carbon economy.

There are some complex trade-offs in this process of environmental protection. If saving the Manacles Marine Conservation Zone jeopardizes the Swansea Bay Tidal Lagoon and then subsequent other tidal lagoons this might well slow the UK’s carbon reductions, with all the related damage this will do to ocean ecosystems and much else besides. I’ll write again soon about balancing the needs of the economy and ecology: potentially we can get the best of both worlds!



Review of 2014

So many ghastly things are happening in the world, from ongoing civil wars and the emergence of genocidal fundamentalism to the climate disrupting consequences of business as usual politics. It is easy to feel overwhelmed. Yet at the same time very many amazing and positive things are happening.

Evidence is beginning to mount that several countries may have passed peak energy demand, and renewable energy is rapidly gaining ground in most parts of the world. The possibilities of a 100% renewably powered global economy look better and better as each year goes by. The pace of innovation is breathtaking, especially in relation to many forms of solar power. I can’t choose a single technology of the year, so here are five of my solar favourites.

  • In January I blogged about Naked Energy: Combining solar water heating and photovoltaics into a single panel with improved efficiency.
  • In March I blogged about solar powered desalination. In Australia Sundrop Farms are planning a huge expansion of their Port Augusta project, which I’ll blog about as it happens.
  • In July I blogged about Airlight Energy using solar heated air to help bake limestone into cement at Ait Baha in Morocco
  • Also in July I blogged about Solar Roadways: re-imagining road surfaces as photovoltaic electric generating infrastructure.
  • In September I blogged about Clique Solar using Fresnel Dish technology to heat water and steam for a multitude of uses in India.

Last year I chose the then Uruguayan President Jose Mujica as my Person of the Year. Again this year Pope Francis is a contender, as are many others, but I’ve chosen Molly Scott Cato as this blog’s Person of the Year 2014. Last May she was elected for the Green Party to the European Parliament representing Southwest England. She is proving a powerful voice for social justice and ecological sustainability. With more such voices in the world perhaps some of the ghastly things we read about in the news can be overcome.

Waitrose & Employee Ownership

Last week I looked at the way disruptive change is happening in the electricity supply industry. Today it’s time to look at supermarkets. Here in Herefordshire the new Cattle Market development has just opened. I had been very much against it. The last thing Hereford needs is yet more shops, especially when there are so many empty ones already. We need to wean ourselves off identifying ourselves as consumers and off our debt fuelled excessive and wasteful consumption patterns. That said one of the new stores is a branch of Waitrose, which operates under a different business model from the big four; Tesco, Asda, Sainsburys and Morrisons.

Waitrose doesn’t have shareholders. It is part of the John Lewis Partnership and all its staff are partners in the business, sharing in the profits via an annual bonus paid as an equal percentage of salary. This means that the 91,000 people who work for the group should in theory be much more motivated, engaged and enjoy their work more than staff in other supermarkets. Looking at carbon emissions and other sustainability criteria, Waitrose out-performs the big four, but not Marks & Spencer or the Coop. Next time I go shopping I’ll pop into Waitrose and see if I can have a chat to one or two of the staff in our new store and see what they think about all of this.

It seems important to me that we need alternatives to the shareholder-driven profit-maximization principle behind our big companies, be they supermarkets or electricity suppliers. We want organisations that are more ethical, more concerned to help reduce their environmental footprint, more concerned to help put funds into charitable causes and into treating their staff well and not into the endless greed of shareholders. I and many others are switching our purchasing power to reflect these preferences. I see Waitrose’s market share has risen pretty steadily over the last 20 years, and is now just under 5% of the UK grocery spend: plenty of scope for them to grow, and for more ethical and innovative new entrants to the market.

Displacing the big incumbents in the supermarket sector may prove a slower process than in the electricity supply sector…but disruptive change is coming. Let’s work to make it as positive as possible!

‘Transition’ to ‘Sustainability’?

The words ‘transition’ and ‘sustainability’ are very much words of the moment. At last week’s Hereford in Transition Alliance (HiTA) meeting Martin Kibblewhite asked the question ‘Transition from what, to what’. Most of those at the meeting have spent decades campaigning for myriad causes, projects and policies intended to secure a more ecologically sustainable and socially just future for humanity. Of course there are differences of opinion about what that future world might look like, and what kinds of calamities and collapses will precede the necessary changes… the necessary ‘transition’, if indeed we are ever to have a future that is better for humanity and the rest of the biosphere… a sustainable future…

My work over several years has been to try and articulate my own vision of what this potential future might look like, and how we might overcome some of the immense challenges facing humanity. For about seven years, on a very on and off basis, I’ve tried to write a book, out of which developed this blog and a lot of one off talks and evening classes, and several other projects. I’ll next be speaking about this vision at the Hay Spring Fair on Saturday 12th April. I look forward to meeting some of you there: do come up and say hello and give me some face to face feedback on what you think about this blog.

Annie Leonard has a new video and in just 9 minutes manages to convey the kinds of changes we all want to see in the world. Do watch it. It’s inspirational. She hardly mentions the actual words ‘transition’ or ‘sustainability’, yet it is the best simple, quick and upbeat synopsis of the transition to a sustainable future that so many millions of us are working our socks off to help achieve!

Hay Spring Fair and see the talks and debates section

Annie Leonard’s story of solutions video



Speaking…and gas dependency

On Tuesday I was speaking at the Courtyard Theatre in Hereford. I had a 15 minute slot and my brief was to talk about the exciting possibilities of what could be achieved if we in Herefordshire rise to the energy challenge. I wanted to pack-in many of the ideas and technologies I write about on this blog, and to present them in my usual enthusiastic manner. To do this I always speak without notes and use slide pictures of different technologies and minimal text. I romped through an awful lot of ideas in the allotted 15 minutes. Afterwards I got lots of positive feedback about how people liked my presentation. The downside of such rapid and unscripted speaking is that factual errors are more likely to creep in than when one goes more slowly, and to really be sure never to make silly errors clearly it is best to speak from, and stick closely to, written notes. However this can be very dull for an audience to listen to. It’s a difficult balance to strike.

I did make one error that I’m aware of on Tuesday, and that was to say that UK uses gas to generate about 80% of its electricity. Soon after I said it I realized my error, but too late to correct it. The figures should have been that we use gas for 80% of our domestic space heating and for about 40% of our electricity generation. My basic point was to stress how vulnerable we are, given the growing predominance of imports from Russia and the Persian Gulf. I also wanted to stress the ridiculousness of Ed Miliband’s promise to freeze energy prices, as if he had any control over what price the global market sets for gas. Despite the error I think the message came over loud and clear that I think we need to reduce our dependency on gas imports, as well as rapidly reducing coal and nuclear useage, and the way to go is a major investment in energy efficiency and a whole basket of renewable energy technologies that ideally should be led by local renewable energy coops. Apologies for the error: I hope my message was still clear, and that it was also factually creditable apart from this one error.