History
History (from Greek ἱστορία, historia, meaning "inquiry, knowledge acquired by investigation") is the study of the past as it is described in written documents. Events occurring before written record are considered prehistory. It is an umbrella term that relates to past events as well as the memory, discovery, collection, organization, presentation, and interpretation of information about these events. Scholars who write about history are called historians.
Economics
The blunt truth about the politics of climate change is that no country will want to sacrifice its economy in order to meet this challenge.
Tony Blair, address to the 2005 G8 climate change summit in London, as reported by David Adam, "Blair signals shift over climate change", The Guardian, 1 November 2005.