A few weeks ago I read that “Negotiations between the French company and the British government have stalled over acceptable costs for the project and the rate of return that EDF should be granted.” EDF head Henri Proglio said : “As far as I am concerned, negotiations can fail.”

Behind this lies a story that is deeply shaming. Britain in the 1950s was a leader in peaceful nuclear power. For all kinds of reasons this slipped. France, however, powered ahead in the’ 70s and ’80s and by 1988 80% of its electricity was nuclear-generated. France had decarbonised its electricity before global warming was even mooted as a serious problem. Why the world is so agonized about how to decarbonize is a mystery to me when the French showed how to do it decades ago.

EDF is 85% state owned. So the UK, which always boasts that its free market system is better than the statism still the norm in France, is effectively more or less begging the French government to build the nuclear power stations it ought to be able to build itself. A veritable triumph for the free market!

San Diego gave me the chance to see for the first time live what is probably my favourite animal: the leafy sea dragon. When I first became interested in camouflage and mimicry the sea dragon grabbed my attention as one of nature’s finest whimsies. A cousin of the much better known sea horses, the sea dragons are fishes that live amongst seaweed and camouflage themselves with many floating excrescences that perfectly match the drifting swags and fronds of their environment. Their elongated snout gives them a very strong facial character and the impression the animal creates is that of a punk jester in tattered raiment.

Leafy sea dragons are not Californian natives: I saw them in the Birch Aquarium at the Scripps Institute for Oceanography but they are only found in the wild off southern Australia. My first sight of a live, swimming sea dragon was a surprise because they are usually yellow bodied with green appendages but the aquarium animal was almost transparent: they can colour match to their surroundings and the tanks they were kept in were relatively colourless.  The oddities of sea dragons don’t stop with their camouflage. Most notably, the male broods the young on brood patches on the tail. They are, of course, threatened and the Scripps Institute has a program to breed them in captivity.

A week in San Diego provided a riot of impressions. The flora of California is a wonder with desert staples mixing with coastal flowers, flowering trees, palms and pines and extravagant tropical exotics. It is an Aeonium paradise with rosettes of all sizes beaming out in profusion.  California is also hospitable to other warm climate flowers such as the Ice Plant from South Africa with abundant large yellow flowers with triangular fleshy leaves. The cliffs at La Jolla are rich in magnificent drifts of colour, some of which proved to be great banks of nasturtiums. Who would have thought the English suburban favourite could appear so Californian?

 

In discussions of Britain’s economy the contribution of farming, now down to 0.5% of GDP, is treated with contempt. Left to the market, it is assumed that UK farming would disappear altogether.  But there is something deeply obscene and almost suicidal about this attitude. Statistics can lie but here’s one that doesn’t: precisely 100% of the British people eat. So in a world in which global food supplies are now seriously at risk from climate change and Britain’s parlous balance of payments  (-£15bn in foodstuffs alone), is about to get worse as the bloated financial service sector shrinks, shouldn’t the contribution of farming to the wellbeing of the country be evaluated  on a different scale to this tyrannous yardstick of GDP?

Louis MacNeice wrote as long ago as the '30s that the countryside was “a dwindling annexe to the town, squalid as an afterbirth”. Well, farming may be dirty but that’s life. How can these precious, fastidious  townees live except by food?

 

One of the biggest stories of the New Year was hidden in a small item tucked away on an inside page of the Guardian. Network Rail in the UK has signed a 10 year deal to get all its electricity from nuclear power supplied by EDF. Couple that with the current investment plan that aims to have 75% of UK trains electric over around the same period and we have a jump in the necessary decarbonisation of transport.

Of course, it’s somewhat arbitrary to say that in a grid electricity “comes from” a certain source. Only the bills can say that. And its only global decarbonisation that really matters. But in a war the world has been losing we need some symbolic breakthroughs and this is one. We don’t yet know what will power the cars and lorries of the future (electricity, hydrogen, solar-generated biofuels?) but carbon-free electric rail is the only way for rail and the sooner it happens worldwide the better. So, how come the reticence about trumpeting nuclear rail? Don't write – we all know the answer.

These are great days for deciphering the human story. The ability to sequence the DNA of humans and proto humans such as Neanderthals is changing our ideas about human evolution and human migration. Other investigative techniques such as analysing fatty residues in ancient pots are shedding new light on the greatest cultural change in the 200,000 year old history of Homo sapiens: the agricultural and pastoral revolutions of around 10,000 years ago.

Fine but, at a time of great turmoil and uncertainty in the actually existing human society, aren’t these minority pursuits? Studying our pre-industrial past isn’t going to help us solve our current problems.

But that would be wrong because understanding how and why humans have faced such crises before is exactly what we need in order to solve our crises – if any kind of solution is possible.

What the past teaches first of all is that we have been lulled into thinking that the benign climatic conditions that have attended our rapid rise from the first farming to the age of social media and resource depletion is somehow our birthright.  For the first 190,000 years of our existence, conditions were generally unfavourable. The industrial revolution began in a newly benign (on a geological timescale) Europe which for around 98,000 of the last 110,000 years had been covered in ice much of the time.

Human beings evolved out of necessity in coping with drastic climate reversals. When the climate became more benign the skills honed under adversity were brought to bear on more productive questions and the dramatic rise of civilisation resulted. But in pointing to past climate change we have to confront the simplistic ideas of the global warming deniers.

There is no doubt that we would have to face drastic climate change one day even if we had not conducted the experiment of releasing vast quantities of greenhouse gases. The world has warmed and cooled dramatically in the past without our input and there is no reason to think the future will be any different. Unless – and this is a faint possibility – unless human activity, in Gaia fashion, is actually creating and maintaining the benign conditions that suit us. There is some evidence that this has been the case until the surge in CO2 emissions in the last 150 years.  Without burning fossil fuels humanity was probably heading for another ice age. The cycle of alternating ice ages and interglacials was well established before we interfered with it. The last interglacial lasted around 17,000 years and the one we’re living through began around 12,000 years ago. As recently as the 1960s the kind of scientists who today warn about global warming were urging the explosion of a few nuclear weapons at the poles to melt some ice and warm the world up.

But the fear of a new Ice Age in the ’60s was founded on little real data; the position now is very different. A vast amount of data from ice cores and global temperature measurements support the hypothesis of man-made global warming.

Climate change has always driven human development. Agriculture probably developed through necessity; the Industrial revolution in Britain certainly did. So we will have to change: our way of life really is unsustainable.

Climatic disasters in the past such as the Toba volcanic eruption of around 74,000 years ago almost certainly reduced the human population to very low levels. There is no reason to suppose that we won’t have to face extreme conditions like this again.  It is sometimes thought that our technology will see us though any such event. But tornados flatten towns in the American mid west every year and forest fires burn out suburbs and there is nothing we can do about them, save evacuate the population in good time, thanks to our satellite surveillance. Japan’s hi tech did not prevent the total erasure of coastal settlements following the tsunami – and here even the warning system didn’t work.

The most obvious effects of global warming are well known: sea level rise inundating coastal settlements, with accompanying acidification of the ocean and loss of shelled creatures and corals; changed patterns of rainfall leading to collapse of agriculture in some regions and mass migration; more violent storms, leading to loss of life and destruction of property on a large scale. But there is a lesser known danger that is beginning to loom larger. It is known from the geological record that ice sheets depress the landmass by hundreds of feet. When the ice melts over land the earth bounces back by a similar degree. Scandinavia is still rising from the loss of the ice sheets 12,000 years ago. Earth movements of this magnitude trigger earthquakes, volcanoes and tsunamis. A rash of volcanic activity could have a devastating impact on agriculture if a nuclear winter scenario developed in which clouds of ash obscured the sun for several years. The toll of earthquakes and tsunamis on human life is already at a high level – greater than this and this sum of human misery would be intense.

The big lesson of the human and climatic past is that if it is possible to avoid provoking such a new geological era of massive climatic instability and increased volcanic activity, we should do so because, if such an era should ensue, we would have no defences against it. As it happens, we do have such a course of action open to us: it is mitigation of carbon dioxide emissions. It is exceeding strange that with this simple equation on the table most of humanity currently is in denial.

It is frequently alleged that there is a deep psychological problem for people with their average lifespan of 80 years in taking geological time scales seriously. Most members of the human species throughout its entire history can only have cared for or understood their own generation and the ones immediately before and after them. As Larkin wrote: “we are not suited to the long perspectives”. But the long perspective I’m talking about has only been known to us for a very short time and in the more rational parts of our mind we must surely be able to understand what it means for us? And  it could be that in considering global warming we won’t have to overcome our natural limitations to understand that we must do something now for the sake of the world 50, 100, or several hundred years ahead. Because the increasingly detailed record of climate change shows that the act of global warming that made our world possible – a rise of around 6 degrees C from prevailing Ice Age temperatures – took place in a mere decade. That is how tipping points happen. They tip.

Granary Square, King’s Cross, London, fronting the University of the Arts, opens this week. The Guardian yesterday (Sold-off cities, 12 June) heralded this by warning that large chunks of Britain’s cities like this are falling into private hands. One danger of this, according to an Occupy activist is: "a vision of society in which you work and you shop. At times when you are not working or shopping, you may go to restaurants. You may possibly go to some officially sanctioned kind of entertainment activity which is sponsored by X but there's no scope for people to do something of their own – to do something spontaneous."

At the King’s Cross development there are so far no shopping malls, although these will follow. The first big site to open was the London College of the Arts, bringing together four art schools, including the legendary Central St Martin’s. Just across York Way is the King’s Centre, a premier arts venue and home of the Guardian itself. Next to the British Library, just down the road, the new Francis Crick Institute is being built. This will be Britain's major biomedical research facility. The site includes Camley Street Natural Park.

The King’s Cross development is building towards being an intellectual and creativity hub. As for the offices, when they arrive, Google are slated to be one of the first occupants. The idea that no one will be able to do their own, creative, thing in this complex is ludicrous. I have no brief for the developers but, having watched this site slowing being transformed from decay and degradation, over the last 15 years, I have to say that I like what I see so far.