footprint

Keeping homes and offices at just the right temperature requires a lot of energy. Buildings generate about a third of...

BBC Learning English – The English We Speak / Plastic footprint  BBCsource

BBC Learning English – The English We Speak / Plastic footprint  bbc.co.uksource

BBC Learning English – The English We Speak / Carbon footprint  bbc.co.uksource

BBC Learning English – The English We Speak / Carbon footprint  BBCsource