'I don't want to leave a damaged world': meet the new eco-warriors

There are things we can all do to lower our impact on the environment. We speak to three people who have taken the first stepsSome want a clear conscience. Others want to see if they are up to the challenge. But none of them want to wait until 2050 to cut their carbon emissions down to near-zero.Across the country, environmentalists of all ages - from seven to 75 - are taking action now to lead low-carbon lives. Continue reading...