The UK Department for Transport has launched an advertisement campaign appealing for people to drive five miles fewer a week, to cut CO2 emissions.

The five-miles-a-week cut in driving could save 2.7 million tons of CO2 per year, given that car travel is the single biggest source of household and individual CO2 emissions in the country, according to the department.

The campaign asks people to plan the journeys they routinely take more carefully, encouraging less driving by combining journeys or by walking and cycling a bit more for short trips.

Transport Minister Sadiq Khan said that this campaign asks people to think more carefully about the journeys they routinely take.

“In our daily lives we create over 40% of the UK’s CO2 emissions. Every action we can take to reduce this figure will make a difference,” Sadiq said.

Developed as part of the cross-government ACT ON CO2 campaign, the campaign is a step towards the demanding framework with European partners to reduce CO2 emissions from new cars by 40% by 2020.