10-01-2021 - Please Turn off your engine sign, Clifton College nursery, Bristol. Show you care about our air. Encouraging parents to switch off their car engines when collecting and dropping off their children © Paul Box

17-08-2017 - Imperial Valley, California, USA Staff from the Comite Civico del Valle hoisting a flag to warn pupils and the local community of daily poor air quality, Brawley High School. The School Flag Air Quali... © David Bacon

29-04-2009 - Pupils recycling paper for the Eco-Schools Award, at Hillcrest Primary School in Bristol. © Paul Box

29-04-2009 - Pupils recycling paper for the Eco-Schools Award, at Hillcrest Primary School in Bristol. © Paul Box

29-04-2009 - Pupils recycling paper for the Eco-Schools Award, at Hillcrest Primary School in Bristol. © Paul Box

26-06-2008 - Potential students looking at a solar powered car, Open Day, Bristol University © Paul Box

26-06-2008 - Potential students looking at a solar powered car, Open Day, Bristol University © Paul Box

10-11-1999 - Ijaw school house in the Delta region of Nigeria. The ijaw communities claim Shell has damaged their fishing grounds and have failed to put any revenues from their huge oil income back into the area w... © Adrian Arbib

03-07-1997 - Students stand in the shade beneath solar power units at a technical school. Uganda. 1997 © Jim Holmes

03-11-1986 - Youth, demolished KME factory, Kirkby, Liverpool 1986, an area of high unemployment, poverty, multiple deprivation and dependency on welfare. Much of the site is polluted. © John Harris

03-11-1986 - Youth KME factory, Kirkby, Liverpool 1981 sitting on rubble of the demolishedan area of high unemployment, poverty, multiple deprivation and dependency on welfare. Much of the site is polluted with to... © John Harris

14-06-1974 - Laporte Chemical Works 1974 next to Uphall County Primary School, Ilford, Essex © Martin Mayer

06-06-1974 - Laporte Chemical Works 1974 next to Uphall County Primary School, Ilford, Essex © Martin Mayer

03-05-1974 - Port Talbot Steelworks, dog and school, South Wales © Martin Mayer

15-01-1972 - Paul Ralph Ehrlich, American biologist best known for warnings about the consequences of population growth and limited resources and author of The Population Bomb and professor at Stanford University. © Patrick Eagar

15-01-1972 - Paul Ralph Ehrlich speaking Central Hall Westminster London 1972. An American biologist best known for warnings about the consequences of population growth and limited resources and author of The Popu... © Patrick Eagar

15-01-1972 - Paul Ralph Ehrlich speaking Central Hall Westminster London 1972. An American biologist best known for warnings about the consequences of population growth and limited resources and author of The Popu... © Patrick Eagar

15-01-1972 - Paul Ralph Ehrlich speaking Central Hall Westminster London 1972. An American biologist best known for warnings about the consequences of population growth and limited resources and author of The Popu... © Patrick Eagar

20-10-1958 - Primary School children walking along the High Street in the mediaeval village of Lavenham Suffolk 1958 © Kurt Hutton

20-10-1958 - Primary School children walking along the High Street in the mediaeval village of Lavenham Suffolk 1958 © Kurt Hutton

20-10-1958 - Primary School children walking along the High Street in the mediaeval village of Lavenham Suffolk 1958 © Kurt Hutton