United Nations Framework Convention on Climate Change - UNFCCC
UNFCCC provides access to the most recent greenhouse gas data for countries that are Parties to the Climate Change Convention.
http://unfccc.int/

Food and Agriculture Organisation of the United Nations - FAOSTAT
Over 3 million time-series and cross sectional data relating to food and agriculture.
http://faostat.fao.org/

United Nations Statistics Division - National Accounts Estimates of Main Aggregates
National accounts estimates for most countries and areas from 1970 onwards.
http://unstats.un.org/

United Nations Statistics Division - National Accounts Official Country Data
Official national accounts statistics in national currencies as provided by the National Statistical Offices.
http://unstats.un.org/

United Nations Statistics Division - Industrial Commodity Statistics Yearbook
Yearbook and database covering production statistics since 1950.
http://unstats.un.org/

United Nations Statistics Division - UN List of Industrial Products
List of industrial products for which UNSD compiles production statistics.
http://unstats.un.org/