Two Ministers and 54 officials comprised the official UK delegation to the UN Climate Change Conference in Copenhagen. 45 delegates travelled by air, seven travelled by train, and four did not require any international travel.
Both Ministers and the five DECC officials accompanying them travelled business class. The other 33 DECC delegates travelled on economy tickets. The total cost of DECC's travel was roughly £19,390.
This does not include the Prime Minister and the delegation from No. 10.