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Carbon calculators can potentially help people understand and reduce their climate impact. This paper describes the features of Svalna, a mobile application that estimates users' greenhouse gas emissions by means of a hybrid approach that relies on financial transaction data from the users' bank paired with environmentally extended input output analysis; data from official registers of governmental agencies, and data entered by the users themselves. Applying financial transaction data in carbon calculators is increasingly popular, and I discuss the benefits and drawbacks of using such data in order to estimate greenhouse gas emissions. The paper also describes how design features have been developed based on insights from behavioral science and previous research on carbon calculators. The mobile application is available for use in Sweden and had approximately 15,000 users in December 2019. • This paper describes a carbon calculator that uses financial transactions and EE-MRIO data to estimate users' carbon footprint. • The methodology is presented and the benefits and drawbacks of this approach are discussed. • The design of the mobile application and how it builds on insights from behavioral science is described. [ABSTRACT FROM AUTHOR]

Abstract: Based on a meta-study, the paper describes the existing options, areal extents, and Swedish farmers'' conditions for energy crop production promoted by the governments to mitigate and adapt to climate change. The drivers of and barriers to cultivating various energy crops are described in terms of a variety of motivational factors. The approach used peer-reviewed and gray literature using three Internet sources. Questions addressed include the energy crops available to Swedish farmers and how well established they are in terms of areal extent. What drivers of and barriers to growing energy crops do farmers perceive? How do various motivational factors for these drivers and barriers correspond to the adoption of certain energy crops? The results indicate that 13 energy-related crops are available, of which straw (a residue), oil crops, and wheat are the most extensively produced in terms of cultivated area. Results confirm earlier research findings that converting from annual to perennial crops and from traditional crops or production systems to new ones are important barriers. Economic motivations for changing production systems are strong, but factors such as values (e.g., esthetic), knowledge (e.g., habits and knowledge of production methods), and legal conditions (e.g., cultivation licenses) are crucial for the change to energy crops. Finally, there are knowledge gaps in the literature as to why farmers decide to keep or change a production system. Since the Swedish government and the EU intend to encourage farmers to expand their energy crop production, this knowledge of such motivational factors should be enhanced. [Copyright &y& Elsevier]