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We know 'what' needs to be done to deliver our purpose of creating a clean and safe environment for future generations at Sellafield but working out the 'how' can be challenging as we tackle buildings that were never designed with decommissioning in mind. That's where our active demonstrator programme comes in.

The genuine savings index (GSI) is a simple indicator that can be used to assess an economy's sustainability. It defines wealth more broadly than orthodox national accounts, and recalculates national savings figures based on this new definition. Genuine savings aim to represent the value of the net change in the whole range of assets that are important for development: produced assets, natural resources, environmental quality, and human resources. This paper takes the broad framework developed in previous studies and tests its application with respect to the United Kingdom and Taiwan between 1970 and 1998, with the goal of assessing the feasibility of using such measures quite broadly as indices of sustainable development. The paper shows that both the United Kingdom and Taiwan have positive genuine savings rates over the period in question, with the United Kingdom registering lower ones than Taiwan.

The genuine savings index (GSI) is a simple indicator that can be used to assess an economy's sustainability. It defines wealth more broadly than orthodox national accounts, and recalculates national savings figures based on this new definition. Genuine savings aim to represent the value of the net change in the whole range of assets that are important for development: produced assets, natural resources, environmental quality, and human resources. This paper takes the broad framework developed in previous studies and tests its application with respect to the United Kingdom and Taiwan between 1970 and 1998, with the goal of assessing the feasibility of using such measures quite broadly as indices of sustainable development. The paper shows that both the United Kingdom and Taiwan have positive genuine savings rates over the period in question, with the United Kingdom registering lower ones than Taiwan. (Developing Economies/DÜI)

Integrated Assessment Models (IAMs) have become critical tools for assessing the costs and benefits of policies to reduce greenhouse gas emissions. Three models currently inform the social cost of carbon dioxide (SCCO2, the net present value of damages from one additional ton of CO2) used by the US federal government, several states, and Canada. Here we present a new open-source implementation of one of these models (PAGE09) in the Julia programming language using a modular modeling framework (Mimi). Mimi-PAGE was coded using best coding practices (such as multiple code reviews by different individuals during development, automated testing of newly-committed code, and provision of documentation and usage notes) and is publicly available in a GitHub repository for community inspection and use under an open source license. In this paper we describe the Julia implementation of PAGE09, show that output from Mimi-PAGE matches that of the original model, and perform comparisons of the run time between the two implementations.

Integrated Assessment Models (IAMs) have become critical tools for assessing the costs and benefits of policies to reduce greenhouse gas emissions. Three models currently inform the social cost of carbon dioxide (SCCO2, the net present value of damages from one additional ton of CO2) used by the US federal government, several states, and Canada. Here we present a new open-source implementation of one of these models (PAGE09) in the Julia programming language using a modular modeling framework (Mimi). Mimi-PAGE was coded using best coding practices (such as multiple code reviews by different individuals during development, automated testing of newly-committed code, and provision of documentation and usage notes) and is publicly available in a GitHub repository for community inspection and use under an open source license. In this paper we describe the Julia implementation of PAGE09, show that output from Mimi-PAGE matches that of the original model, and perform comparisons of the run time between the two implementations.

Integrated Assessment Models (IAMs) have become critical tools for assessing the costs and benefits of policies to reduce greenhouse gas emissions. Three models currently inform the social cost of carbon dioxide (SCCO2, the net present value of damages from one additional ton of CO2) used by the US federal government, several states, and Canada. Here we present a new open-source implementation of one of these models (PAGE09) in the Julia programming language using a modular modeling framework (Mimi). Mimi-PAGE was coded using best coding practices (such as multiple code reviews by different individuals during development, automated testing of newly-committed code, and provision of documentation and usage notes) and is publicly available in a GitHub repository for community inspection and use under an open source license. In this paper we describe the Julia implementation of PAGE09, show that output from Mimi-PAGE matches that of the original model, and perform comparisons of the run time between the two implementations.