WRI/CAIT -- The Climate Analysis Indicator tool web page provides tools and data with respect to various variables that impact climate change. The page is available at http://www.wri.org/tools/cait/ .
Cline--A summary of William Cline's 2007 book "Global Warming and Agriculture: Impact Estimates by Country" is available at https://www.imf.org/external/pubs/ft/fandd/2008/03/pdf/cline.pdf Selected chapters of the book can be downloaded in pdf format from https://www.imf.org/external/pubs/ft/fandd/2008/03/pdf/cline.pdf
World Bank, Climate Change Knowledge Portal-- This page provides a central location for reports and data on world climate change. The site is available at http://sdwebx.worldbank.org/climateportal/index.cfm .