Showing posts with label DECISION MAKING. Show all posts
Showing posts with label DECISION MAKING. Show all posts

3.05.2012

Are we heading towards a Carbon Bubble?


It seems that there is a growing doubt regarding the efficiency and the results that will be achieved through the Carbon market.

Even worst, recent findings document that there is a potential for a Carbon Bubble which will have tremendous negative effects to carbon trading and subsequently to the efforts for Climate Change abatement.
Here are some of the latest developments, as they are described in the Carbon Tracker report available at the relevant web-site. 

The Carbon Tracker initiative is a new way of looking at the carbon emissions problem. It is focused on the fossil fuel reserves held by publically listed companies and the way they are valued and assessed by markets. Currently financial markets have an unlimited capacity to treat fossil fuel reserves as assets. As governments move to control carbon emissions, this market failure is creating systemic risks for institutional investors, notably the threat of fossil fuel assets becoming stranded as the shift to a low-carbon economy accelerates.

According a research made by the Potsdam Institute, in order to reduce the chance of exceeding 2°C warming to 20%, the global carbon budget for 2000-2050 is 886 GtCO2. Minus emissions from the first decade of this century, this leaves a budget of 565 GtCO2 for the remaining 40 years to 2050.
But the total carbon potential of the Earth’s known fossil fuel reserves comes to 2795 GtCO2. 65% of this is from coal, with oil providing 22% and gas 13%.

This means that governments and global markets are currently treating as assets, reserves equivalent to nearly 5 times the carbon budget for the next 40 years. The investment consequences of using only 20% of these reserves have not yet been assessed!

The fossil fuel reserves held by the top 100 listed coal companies and the top 100 listed oil and gas companies represent potential emissions of 745 GtCO2. This exceeds the remaining carbon budget of 565 GtCO2 by 180 GtCO2.This means that using just the listed proportion of reserves in the next 40 years is enough to take us beyond 2°C of global warming. On top of this further resources are held by state entities.
 Given only 20% of the total reserves can be used to stay below 2°C, if this is applied uniformly, then only 149 of the 745 GtCO2 held by listed companies can be used unabated. Investors are thus left exposed to the risk of unburnable carbon. If the 2°C target is rigorously applied, then up to 80% of declared reserves owned by the world’s largest listed coal, oil and gas companies and their investors would be subject to impairment as these assets become stranded.

The top 100 coal and top 100 oil & gas companies have a combined value of $7.42 trillion as at February 2011. The countries with the largest greenhouse gas potential in reserves on their stock exchanges are Russia, (253 Gt CO2), the United States, (156.5 Gt CO2) and the United Kingdom, (105.5 Gt CO2). The stock exchanges of London, Sao Paulo, Moscow, Australia and Toronto all have an estimated 20-30% of their market capitalization connected to fossil fuels.

The UK has less than 0.2% of the world’s coal, oil and gas reserves, and accounts for around 1.8% of global consumption of fossil fuels. Yet the CO2 potential of the reserves listed in London alone account for 18.7% of the remaining global carbon budget. The financial carbon footprint of the UK is therefore 100 times its own reserves.

London currently has 105.5 GtCO2 of fossil fuel reserves listed on its exchange which is ten times the UK’s carbon budget for 2011 to 2050, of around 10 GtCO2. Just one of the largest companies listed in London, such as Shell, BP or Xstrata, has enough reserves to use up the UK’s carbon budget to 2050. With approximately one third of the total value of the FTSE 100 being represented by resource and mining companies, London’s role as a global financial centre is at stake if these assets become unburnable en route to a low carbon economy.

The Carbon Tracker report mentions that “In the past decade investors have suffered considerable value destruction following the mispricing exhibited in the dot.com boom and the more recent credit crunch. The carbon bubble could be equally serious for institutional investors – including pension beneficiaries - and the value lost would be permanent”.

The authors believe (and I also share the same opinion) that today’s financial architecture is not fit for purpose to manage the transition to a low-carbon economy and serious reforms are required to key aspects of financial regulation and practice firstly to acknowledge the carbon risks inherent in fossil fuel assets and then take action to reduce these risks on the timeline needed to avoid catastrophic climate change.

They also add that “The regulatory regimes covering the capital markets need realigning to provide transparency for investors on the assumptions behind valuing unburnable carbon. With the global economy following the fortunes of the financial sector, it is essential to create capital markets which are robust enough to deliver an economy which can prevent dangerous climate change. Unless a more long-term approach is required by regulators, the shift in investment required to deliver a low carbon future will not occur.”

9.09.2011

From LCA to Life Cycle Management

This is from Science for Environmental Policy, DG Environment News Alert Service, issue 252.

"Although life cycle assessment (LCA) is a widely accepted method for supporting decision-making, it can face difficulties when being translated into practical life cycle management. A recent case study on local waste management has led to the development of several principles to ensure that LCAs are understandable and applicable.

The EU recommends the use of LCA or life cycle thinking in the waste management plans of Member States. However, for LCAs to be successful in developing waste management plans they must be transparent, both in terms of their results and their links with policy practice.

The waste agency of Catalonia (Spain), commissioned the UNESCO Chair in Life Cycle and Climate Change to explore the LCA of different waste management options, with the specific aim of examining whether it is preferable to treat waste in Catalonia or to export it for treatment. The research group analysed the process and compiled a set of principles to guide those undertaking LCAs to ensure they are understood and used by decision makers. Although focused on Catalonia, the study is general in its scope and does not depend on any specific local conditions, so its recommendations could apply to other regions as well.

Four waste management options were identified with different combinations of treatments (energy recovery, solvent recovery and landfill) and a choice of whether to export the waste or treat it within Catalonia. The authors estimated the environmental impact in terms of energy, the expenditure associated with transport and treatment of each type of waste, and developed a model for each management option, using LCA techniques to identify the maximum distance that the waste could be transported for treatment while managing environmental impact.

The approach, using four models, was adopted by the Catalan government as a scientifically robust and practical approach to waste management. On the basis of the experience gained in the project, the researchers developed the following recommendations for life cycle management, which could be applied to other regions and environmental policies:

‘Consensus beats reality’ principle – From the start, it should be acknowledged and understood that LCA can never completely represent reality and it will be affected by its assumptions and that the different stakeholders have preconceptions. Although LCA itself cannot be totally realistic, it is important to have consensus about the expectations placed upon it.

‘The three-thirds’ principle – To ensure LCA studies can be useful for, and correctly understood and interpreted by non-LCA experts, resources should be distributed as follows: one third to seek consensus with the client on the goal and scope of the LCA, one third to help the customer understand and use the results, and finally, one third to perform the LCA study itself.

‘Trust beats certainty’ principle – Scientific robustness is important in an LCA, but so is the decision-makers’ level of trust in the method and in the LCA practitioner. Trust must be in place if the LCA is to translate into effective life cycle management and social skills are needed.

‘Good enough is best’ principle – This addresses the issue of whether to base a decision on an incomplete or limited LCA. The study suggests that a suitable approach is to start by settling for simplified LCAs and allow the possibility of a full LCA if there is disagreement on the results.

1. See: http://faostat.fao.org/default.aspx
Source:Fullana i Palmer. P., Puig, R., Bala, A., Baquero G., Riba J., Raugei M. (2011) From Life Cycle Assessment to Life Cycle Management: A Case Study On Industrial Waste Management Policy Making. Journal of Industrial Ecology. 15(3):458-474.

Contact: pere.fullana@esci.es"

4.05.2011

Sustainable landfill concepts from a practicioner's view

This is paper written by Haris kamariotakis and me.

It was presented and discussed at ISWA Master Class for sustainable landfills, October 2009 in Lisbon. The Master Class was organized by ISWA Working Group on Sanitary Landfills, which is chaired by ny good friend Derek Greedy.

I think its view was really appreciated by the participants.

I hope you will enjoy it too.

You can find it at http://www.scribd.com/doc/52390003/Sustainable-Landfill-Concept

4.17.2010

Composting green waste saves as much CO2 as energy recovery ?

This is from "Science for Environmental Policy", issue 191, 15 April 2010

"Recycling green waste as compost could match the environmental benefits of converting it into renewable energy, in terms of CO2 savings, according to new German research. It suggests that the two forms of waste management should be seen as complementary and both should receive subsidies.

Green waste is biodegradable waste, usually from gardens and parks, and includes grass, hedge trimmings, leaves and tree trunks. It can be used to produce energy in biomass power stations and receives a renewable energy subsidy in Germany. It can also be recycled as compost, which reduces the extraction of peat – an important sink for CO2. However, composting does not receive financial support in Germany. The EU is currently developing policy to encourage composting and develop standards for composting across the EU1.

The research compared the environmental benefits of energy recovery from green waste and of recycling green waste using 81 samples. It analysed the CO2 balance of each system by estimating the release and savings of CO2 at the different stages of the process chain. For energy recovery this included the transport, shredding, incineration and the CO2 saved from the renewable energy produced. For recycling this included stages such as transport, composting and CO2 saved by replacing peat. Four different types of green waste were considered that differed in their amount of wood, herbaceous/grassy material and soil.

The results demonstrated that waste with a high percentage of wood produced the most CO2 savings for both composting and energy recovery whilst those with only herbaceous and soil components produced the least savings. The CO2 savings from energy recovery varied from 126 to 1040kg of CO2 saved per tonne of green waste, depending on the type of waste and its composition. The CO2 savings from recycling varied from 259 to 1193kg of CO2 per tonne of green waste, again depending on the type of waste. This indicates that the environmental gains, in terms of CO2 savings, were similar for both energy recovery and recycling of green waste.

Notably, green waste with a high percentage of herbaceous/grassy content and soil content had twice the CO2 savings from recycling as from energy recovery. This is probably because this type of waste has low heating values, due to high water and ash content, and is therefore better for composting purposes.

The researchers suggested that energy recovery and recycling of green waste should be judged as complementary systems. It is unlikely that one method on its own will achieve the desired reduction in CO2 levels and a combination is more likely to lead to a significant decrease in greenhouse gas emissions. As such they recommend that recycling of green waste be awarded equivalent financial support as the use of green waste to produce renewable energy.

1. See: http://ec.europa.eu/environment/waste/compost/index.htm

Source: Kranert, M., Gottschall, R., Bruns, C. & Hafner, G. (2010). Energy or compost from green waste? A CO2-based assessment. Waste Management. 30: 697-701.
Contact: martin.kranert@iswa.uni-stuttgart.de "

11.06.2009

Waste management after 2030

It seems that this presentation was a real hit. In ISWA's 2009 Lisbon congress and in HSWMA's 2009 Athens Conference the more or less same presentation created a huge effect between the audience and a plethora of congratulations.

Please allow me to thanks all people encouraging me to write a paper with the same title - I am already working on this.

In the meantime, my presentation is available at:

http://www.scribd.com/doc/22205324/The-Future-of-SWM

The main topics are:
Historic waste
Increasing Quantities
Changing composition of waste
Recycling and resource scarcity
Energy revolution
Robotics

All those are viewed and discussed according their waste management impacts

6.03.2008

Decision making for waste treatment technologies

This is a presentation made in Novi Sad, Serbia at 2006 during the conference "Growth of the solid waste sector: Management and solutions". The whole presentation can be found at:

http://www.scribd.com/doc/3213880/Decision-making-for-the-selection-of-appropriate-waste-treatment-technology

Summary: main concepts and tools available to design an integrated waste management system under the sustainability approach