Could the way we have changed the landscape for farming be the unrecognised extra factor in climate change? In their book Ground Breaking Freya and Philip Mulvey argue it could be a huge contributor. Evidence is drawn from the Rabbit-Proof Fence which runs for 800Km and divides Western Australia into two halves. To the east, native vegetation. To the west, agricultural land. And there is a documented change in climatic conditions each side of the fence. Clearing native vegetation for agriculture has seen rainfall drop by 20% between 1976 and 2002. Clearing the vegetation for farming has depleted soils and affected rainfall.
Freya and Philip Mulvey argue that managing land use to reduce bare ground, restore the water cycle and sequester carbon in the soil will be major contributors if we are to turn around climate change and return global conditions to those which saw civilisation develop.