Kim Cattrall and the population debate: not having children is a gift to the world | Letters

Kim Cattrall is right to argue that women who have not had children, through choice or circumstance, can play a positive role in society (Cattrall: I may not be a mum but I am a parent, 14 September). In reality, in a world heading for four billion more people by 2100, those who choose not to have children make a greater contribution than those who do.

One's number of children has a greater environmental and social impact than any other decision one makes. From environmental degradation and climate change to pressure on housing and public services, we are all affected by continuing population growth. Accepting the choices of those who have one or no children is an essential component of a more sustainable future.
Simon Ross
Chief executive, Population Matters