Finland's president, who will head the country's delegation at the Paris climate talks, has urged Finns to cut their carbon footprint by half within 10 years.

Sauli Niinisto said he has signed the citizens' climate pledge, converting his private home to geothermal energy and cutting the household's electricity consumption by half.

Niinisto said Thursday that his family also switched to using utilities that provide only carbon-free electricity and converted lighting to low-energy LED lamps.

The Finnish climate pledge campaign, launched in August by prominent artists, is backed by various organizations and the Finnish Environment Ministry.

Earlier this month, the United Nations' climate change group said it would help promote the campaign globally, describing it as an "excellent example" that could translate to "national and individual hands-on action."