Another famous face lending a hand to help our environment is Lily Cole. The supermodel and ethical clothing advocate is getting behind Climate Week by helping to promote a charity T-shirt designed by Eley Kishimoto.

As part of the initiative, the British model visited India with the Environmental Justice Foundation (EJF) where she followed the supply chain of of a sustainably made T-shirt. From the hand cultivation of organic cotton right through to the factory built out of recycled materials, Cole examines how they are making T-shirts whose carbon footprint is 90% less than that of a conventionally manufactured T-shirt.

"It was such an amazing and heart-warming and optimistic experience, just to know you could produce an affordable T-shirt and it could be a positive process, employing people and not dumping loads of chemical dyes into the local river," she told The Guardian.

The Climate Week T-shirt is on sale now at Tesco for just £10 each. Proceeds from its sale will go to the EJF's No Place Like Home campaign, giving a voice to climate refugees.