大象传媒

We ask how significant Olaf Lies's intervention will turn out to be. The 大象传媒's Theo Leggett gives us his view, and Andrew Sims of the New Economics Foundation considers the wider impact the emissions scandal could have on people's car-buying habits. Also in the programme, how one office block in Delhi is trying to help people breathe easier. We hear from Barun Aggarwal of BreatheEasy Labs, which sells air purifiers. Meanwhile also in India, Vishala Sri-Pathma has been trying to find out what makes a perfect cup of Indian chai, or tea