The Ex-Ante Carbon-balance Tool (EX-ACT) is an appraisal system developed by the Food and Agriculture Association of the United Nations (FAO). It provides ex-ante estimates of the impacts of agriculture and forestry development projects, programmes and policies on the carbon balance. The carbon balance is defined as the net balance from all greenhouse gases (GHGs) (expressed in carbon dioxide [CO2] equivalent) that were emitted or sequestered from project implementation compared to a business-as-usual scenario.

This letter is intended to help users select an appropriate calculator for a landscape-scale greenhouse gas (GHG) assessment of activities for agriculture and forestry. Eighteen calculators, which were designed for different aims, were assessed. They are intended to be used in different geographical areas and which use different accounting methodologies. The classification proposed is based on the main aims of the assessment: raising awareness, reporting, project evaluation and product assessment.

The Government of The Bahamas has prepared this national policy for adaptation to climate change. Specifically, it provides an assessment of the degree of vulnerability of The Bahamas to the projected impacts of climate change by sectors; of the capacity for adaptation to anthropogenic climate change; and proposes strategies for anticipating and ameliorating or avoiding the negative impacts.