School students in Westminster
Students on the march
Anger at the lack of action by politicians and business
'The lungs of the world are burning'
Workers and students join a walkout at SOAS University of London
A sit-down protest
Defiant and determined
It was a huge day of protest
'It's getting hot in here'
Organisers said 100,000 took part in London
This is a step towards an even bigger movement
The police were there to try to contain the protest