The first meeting of the “Managing Technological Risk” event series, held by the APPG for Future Generations, was on Tuesday June 5th in Portcullis House, Westminster and focused on Black Sky risks and infrastructure resilience.Simon Beard opened the event by explaining why infrastructure resilience was important for future generations. The probability that we will suffer some kind of catastrophic infrastructure failure in the long term is very high, despite the fact that such events are undoubtedly rare. It is easy to ignore such low probability high impact events, but in fact they happen, somewhere, all the time. Maybe an event like this will happen tomorrow, or maybe it will not happen for a generation or more, but we need to think about what we will do if and when it does happen. The main speaker for the evening was Lord Toby Harris, UK coordinator for the Electricity Infrastructure Resilience Council, which coordinates academic, government and industry efforts to build more resilient infrastructure. He argued that a prolonged, wide area, electricity outage (a Black Sky event) could strike at any time and he listed 6 main scenarios that could cause such an event:
- A terrorist attack - for instance, in 1996 the IRA plotted to disrupt the London electricity supply by disrupting 6 major sub stations serving London, though police were able to foil this;
- An attack involving an electromagnetic pulse, like those produced by high atmosphere nuclear explosions - North Korea has stated that they are contemplating such attacks, which require much less targeting than conventional nuclear strikes;
- A cyber-attack - 2 years ago, the USA department of defence science board reported that there was so much penetration by state hackers into the US electricity supply that they could turn it off at will;
- Extreme conventional weather – for instance, Storm Desmond disrupted electricity supplies to more than 100,000 people in 2015 and required generators to be imported from as far away as Northern Ireland;
- Solar weather - for instance, the 1859 Carrington flare lead disruption of the telegraph network, even a relatively weak solar flare could knock out GPS satellites on which many systems depend; and
- Earthquakes and other seismic activity - whilst we are comparatively safe in the UK, we are increasingly reliant on an international grid that is more vulnerable to such risks.
After describing these scenarios Lord Harris went on to discuss what might happen following such an event. Some services would immediately stop working, for instance schools will close and this will also disrupt the lives of any key workers with childcare responsibility. Whilst hospitals have backup power available they still rely on other systems that don’t, such as water and transport, and carry out a lot of care in the community away from these supplies. Sewage systems rely on electric pumps that seldom have protected supplies, and if these fail then the system will solidify. Almost all modern telephones require electricity to operate whilst mobile phone masts have backup batteries that will only last for a matter of hours. Disruption to refrigeration will not only curtail ‘just in time’ food supplies, but also lead to a build-up of toxic food waste that is hard to dispose of and that will contribute to the spread of diseases. Many people believe that in such circumstances martial law will be declared to preserve social order, however our army is simply no longer big enough to secure the entire country.
He then considered why our infrastructure is not more resilient. He argued that much work has gone into increasing the efficiency of systems and reducing costs, but that this has come at the cost of reducing the level of redundancy and resilience. Yet, because the consequences are so potentially catastrophic, he concluded that we must ask more questions about how we could prevent, or at least respond, to these events. This is not just a requirement for politicians or society in general, he said, we all need to consider what we can do. The reality is that we are not resilient. People don’t want to imagine how they will cope without modern technologies, so we have to build in enough resilience to be able to meet these expectations, or people will not be able to cope.Finally, Julius Weitzdorfer discussed the relationship between Black Sky events and global catastrophic risks, and argued that even relatively small blackouts often differ from truly catastrophic threats merely in terms of their scale, as both relate to the same key challenges:
- The tragedy of the commons (market failures and underinvestment in infrastructure - the classic common pool resource);
- The tragedy of the rising (the failure to engage in long term thinking, because it is always easier to kick problems into the long grass rather than seek solutions); and
- The tragedy of the uncommons (failier to pay enough attention to what is rare or unexpected).
Julius then suggested some concrete steps that UK academics and policy makers could take to mitigate the risks associated with Black Sky events:
- Greater Preparedness at the corporate, insurance and political levels;
- Renewing the contract for European solar monitoring satellites, which are vital if we are to get any substantial warning of a solar flare event;
- Continuing to work with the EU to secure and improve the common market for electricity and the interconnectivity of grids, as this is expected to supply 20% of the UK’s need and will be vitally important in the event of a ‘black start’ scenario; and
- Improving the interconnectedness between academics, infrastructure and policy makers.
These talks were followed by an extensive question and answer session.