THE CURRENT SITUATION
At the moment, our sewers fill up when it rains - and untreated waste water spills out into the River Thames.
THE PROPOSED SOLUTION
The new "super sewer" would divert the waste water away from the river.
More top news
The Met Office says temperatures are likely to climb above 20 celsius.
In a sketch for 'The Late Late Show', James Corden temporarily took charge with some unusual coaching techniques.
Calum McSwiggan posted a photo on Instagram as he lay in a hospital bed after the alleged attack.