What's causing the 'childcare desert' crisis?

When it comes to childcare in this country, it’s a postcode lottery.
 
With years of underfunding, finding affordable and available nursery places is a real struggle for most parents.
 
And with nurseries closing at a faster rate than new ones are opening, there doesn’t seem to be much hope.
 
So, what is the government planning to do?  
 
ITV News Social Affairs Correspondent, Sarah Corker, tells Lucrezia Millarini what you need to know…