 forests, we go a long way back, some of them haven't changed much but we have, we can measure them in all kinds of ways now and see how they breathe, but we can also control them, see them rise or see them fall, we know how it is that they help us, to produce our air to feed our rivers to provide us with food medicines and shelter, 1.6 billion of us depend on forests and whilst the world's jungles alone cover only 7% of the earth's surface they are home to half of all species, such vast diversity is vital for keeping our forests healthy so that they in turn may provide us with the things we depend upon