Here's why you need to swap your toothbrush

Trying to live an environmentally friendly life is complicated.
With our hectic lives, caring for the environment might seem like a problem too big to solve.
But a really simple thing you can do is swap your toothbrush for a more sustainable option.
We hear from Dr Tara Shine and Madeleine Murray, who run Change by Degrees, a sustainability consultancy that offers advice to business and communities, and environmental journalist, Lucy Siegle about why this can make such a difference.