Britain's greenhouse gas emissions fell last year
The drop in emissions, the first decrease for two years, was the result of lower energy consumption, due partly to warmer weather, said the Department of Trade and Industry (DTI) in a statement.
The government's Climate Change Policy and more efficient use of energy had also played a role, the DTI said.
"These figures are a real boost showing we are on track to break through our Kyoto targets, and on course to meet our Energy White Paper aim to cut the UK's carbon emissions by 60 percent from current levels by 2050," said energy minister Brian Wilson in the statement.
Britain's Kyoto target is to cut greenhouse gas emissions by 12.5 percent from 1990 levels by 2012.
Data on last year's emissions levels suggested the proportion of Britain's electricity generated from renewable energy sources like wind and solar had risen to three percent from 2.8 percent in 2001, the DTI said.
Britain sees greater use of renewable power as crucial to curbing carbon dioxide emissions.
It wants renewables to produce 10 percent of the country's power by 2010, a target some analysts consider too ambitious in the face of problems gaining planning permission and financing for projects such as windfarms.