And this from the REDD calculator (about) website:
We developed a web-based application for evaluating the environmental and socioeconomic implications and tradeoffs of implementing Indonesia's forest moratorium in Kalimantan under alternative scenarios. This web-based application enables on-the-fly quantification of the benefits of moratorium implementation for carbon conservation and its opportunity costs under alternative user-defined moratorium scenarios. It also includes a mapping function, which displays the land areas in Kalimantan protected by the moratorium via a 'Googlemap' interface. This application is freely available at: http://reddcalculator.com (or mirror site:http://un-redd.lianpinkoh.com).
Additionally, we also developed a downloadable spreadsheet version of this application, which allows users to work locally on their computer. This version is freely available for download at:
*Note that this spreadsheet-based application minimally requires Microsoft Office 2007 (for Windows users), or Microsoft Office 2011 (for Macintosh users). Also note that due to a known floating-point arithmetic issue in Microsoft Excel, outputs from this spreadsheet-based application might differ slightly from the web-based version.
Lian Pin Koh, PhD Department of Environmental Sciences, ETH Zurich, Switzerland, and Department of Biological Sciences, National University of Singapore
Holly K. Gibbs, PhD Department of Geography and Nelson Institute for Environmental Studies, University of Wisconsin-Madison, USA