Sunday, March 22, 2009
Backtracking on renewables
This week saw the disappointing decision by Shell to drop its renewable energy schemes. Having marketed itself as a new dynamic force for alternative and clean energy, they have taken a move based purely on money and not much else. Some other companies have taken similar steps: http://www.guardian.co.uk/environment/2009/mar/21/renewable-energy1
Wednesday, March 4, 2009
Dealing with the inevitable
Next week some leading figures within the climate change debate will gather to help formulate America’s policy at the US Climate Action: A Global Economic Perspective symposium. US legislators will be informed by leading academics and businessmen on the options for tackling the causes and consequences of climate change. That this discussion is still needed is worrying in contrasting ways. Not only because the cause and effect is obvious, but also as there is still deep division as to how to deal with the problem. The symposium is a precursor to the United Nations climate conference in Copenhagen in December. The debate on climate change cannot remain in an academic bubble forever. At some point soon, i.e. now, economics and energy security policy will need to be changed to deal with the problem.
A parallel economy has existed for a long time now, involving new technologies that will reduce emissions. But a second parallel economy might be needed as well, one that deals with the consequences of climate change rather than the causes. There is a growing belief that we will have to accept climate change as a fact and limit the damage that it might cause. These inevitable changes will mean radical differences in how the world functions, where populations live and what resources we survive on. The New Scientist spells out in stark terms in its latest issue: in “a world warmed by 4 °C … it may be impossible to return to anything resembling today's varied and abundant Earth…once there is a 4 °C rise, the juggernaut of warming will be unstoppable, and humanity's fate more uncertain than ever.”
The long standing Green opposition to nuclear energy has been one of the first environmental sacred cows to be attacked in recent debate. James Lovelock - proponent of the Gaia hypothesis - was one of the first environmentalists to defy the consensus and argue that nuclear was the only realistic alternative to fossil fuels. That was five years ago and in the meantime the debate has raged, with the government pressing ahead with their nuclear energy policy. But this week four leading environmentalists have broken ranks and reiterated the nuclear case. The issue threatens to split the green movement at a critical moment.
Lovelock has more to say. His conviction is that the earth’s population will peak to 9 billion then plummet to only 1 billion by the end of the century. He also predicts that a permanent changed climate will last 100,000 years. This extremely pessimistic scenario might be extreme, but even if a fraction of his prediction comes true, then the world will be in trouble. His prediction is that a future enviro-catastrophe will resemble the apocalyptic sounding event - Paleocene-Eocene Thermal Maximum (PETM) - of 55 million years ago. He has, kindly, provided some solutions, if you can call them that. Britain, especially, will be a lifeboat of the world, so will be flooded with refugees.
How we adapt our society both in terms of infrastructure and resources is a question that academics, architects and engineers are already looking at. Events like this week’s Ecobuild conference showcase sustainable construction. With such high profile attendees, ideas for restructuring our architectural infrastructure will gain greater momentum. Obviously putting them into practice in a recession is another matter altogether. Likewise rich lists featuring the next generation of eco-entrepreneurs are admirable, but how close these individuals are to central government planning and decision-making is uncertain.
Creating new structures through intelligent engineering was well advocated in an Institution of Mechanical Engineers report - Adapting to the Inevitable. In the energy sector, the report proposes a fundamental move towards the greater decentralisation of energy production, via intelligent local networks, linked with a more internationally interconnected electricity grid to balance supply and demand differences (ie a European ‘supranational’ grid). Sources of water may need to include a higher proportion of underground storage and catchment. Greater levels of desalination may also be required and increased water recycling will become more important. The report believes that buildings adaptation is perhaps the area where most consideration of future climate change has already been made. More specifically effective master planning of urban areas to increase natural and artificial ventilation corridors. Better planned infrastructure is also required to counter possible flooding.
More radical solutions such as geoengineering are also on the cards. With origins in the Cold war and super power research into climate as a weapon, but largely outlawed by the 1970s, geoengineering now acts as a dramatic solution to an out of control problem. Geoengineering could possibly increase the reflectivity of the planet (the albedo) by propelling reflective particles into the upper atmosphere. The idea of aircraft pumping sulfate aerosols into the atmosphere might seem far-fetched to many, but it would reasonably cheap and would be applied by most nations, in contrast to the expensive and heavy investment options for cutting emissions. Scientific groups including NASA and the Royal Society have been evaluating its potential, whilst environmental groups have been cautious in their endorsement, believing that geoengineering could provide disincentives for cutting emissions. The overall effectiveness, predictability and side effects of geoengineering are questioned by the scientific community. Other risks put forward include weaponisation, geoengineering piracy or the rise of an all powerful megalomaniac with the ability to control the weather for his/her own purposes. Geoengineering could one day by the silver bullet to green issues, but until the science is conclusive, no government is going to invest substantially to take it the next step. Many of these issues are set out in an excellent Foreign Affairs essay this month: http://www.foreignaffairs.org/20090301faessay88206-p10/david-g-victor-m-granger-morgan-jay-apt-john-steinbruner-katharine-ricke/the-geoengineering-option.html
A parallel economy has existed for a long time now, involving new technologies that will reduce emissions. But a second parallel economy might be needed as well, one that deals with the consequences of climate change rather than the causes. There is a growing belief that we will have to accept climate change as a fact and limit the damage that it might cause. These inevitable changes will mean radical differences in how the world functions, where populations live and what resources we survive on. The New Scientist spells out in stark terms in its latest issue: in “a world warmed by 4 °C … it may be impossible to return to anything resembling today's varied and abundant Earth…once there is a 4 °C rise, the juggernaut of warming will be unstoppable, and humanity's fate more uncertain than ever.”
The long standing Green opposition to nuclear energy has been one of the first environmental sacred cows to be attacked in recent debate. James Lovelock - proponent of the Gaia hypothesis - was one of the first environmentalists to defy the consensus and argue that nuclear was the only realistic alternative to fossil fuels. That was five years ago and in the meantime the debate has raged, with the government pressing ahead with their nuclear energy policy. But this week four leading environmentalists have broken ranks and reiterated the nuclear case. The issue threatens to split the green movement at a critical moment.
Lovelock has more to say. His conviction is that the earth’s population will peak to 9 billion then plummet to only 1 billion by the end of the century. He also predicts that a permanent changed climate will last 100,000 years. This extremely pessimistic scenario might be extreme, but even if a fraction of his prediction comes true, then the world will be in trouble. His prediction is that a future enviro-catastrophe will resemble the apocalyptic sounding event - Paleocene-Eocene Thermal Maximum (PETM) - of 55 million years ago. He has, kindly, provided some solutions, if you can call them that. Britain, especially, will be a lifeboat of the world, so will be flooded with refugees.
How we adapt our society both in terms of infrastructure and resources is a question that academics, architects and engineers are already looking at. Events like this week’s Ecobuild conference showcase sustainable construction. With such high profile attendees, ideas for restructuring our architectural infrastructure will gain greater momentum. Obviously putting them into practice in a recession is another matter altogether. Likewise rich lists featuring the next generation of eco-entrepreneurs are admirable, but how close these individuals are to central government planning and decision-making is uncertain.
Creating new structures through intelligent engineering was well advocated in an Institution of Mechanical Engineers report - Adapting to the Inevitable. In the energy sector, the report proposes a fundamental move towards the greater decentralisation of energy production, via intelligent local networks, linked with a more internationally interconnected electricity grid to balance supply and demand differences (ie a European ‘supranational’ grid). Sources of water may need to include a higher proportion of underground storage and catchment. Greater levels of desalination may also be required and increased water recycling will become more important. The report believes that buildings adaptation is perhaps the area where most consideration of future climate change has already been made. More specifically effective master planning of urban areas to increase natural and artificial ventilation corridors. Better planned infrastructure is also required to counter possible flooding.
More radical solutions such as geoengineering are also on the cards. With origins in the Cold war and super power research into climate as a weapon, but largely outlawed by the 1970s, geoengineering now acts as a dramatic solution to an out of control problem. Geoengineering could possibly increase the reflectivity of the planet (the albedo) by propelling reflective particles into the upper atmosphere. The idea of aircraft pumping sulfate aerosols into the atmosphere might seem far-fetched to many, but it would reasonably cheap and would be applied by most nations, in contrast to the expensive and heavy investment options for cutting emissions. Scientific groups including NASA and the Royal Society have been evaluating its potential, whilst environmental groups have been cautious in their endorsement, believing that geoengineering could provide disincentives for cutting emissions. The overall effectiveness, predictability and side effects of geoengineering are questioned by the scientific community. Other risks put forward include weaponisation, geoengineering piracy or the rise of an all powerful megalomaniac with the ability to control the weather for his/her own purposes. Geoengineering could one day by the silver bullet to green issues, but until the science is conclusive, no government is going to invest substantially to take it the next step. Many of these issues are set out in an excellent Foreign Affairs essay this month: http://www.foreignaffairs.org/20090301faessay88206-p10/david-g-victor-m-granger-morgan-jay-apt-john-steinbruner-katharine-ricke/the-geoengineering-option.html
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