"a nation that destroys its soil destroys itself"
according to the FAO how much percent of calories come from terrestrially grown food sources
how many people are undernourished
how much arable land is lost a year
10 times faster than it creates it
US is losing soil...
40 times faster than it creates it
China is losing soil..
how much does soil degradation cost
drought in 1930s major climatic event caused by cooler SST in pacific and warmer SST in the atlantic
how much of the earths surface is water
how much of the earths surface is dry land
China Us and brazil
produce half of all meat
sand silt clay
can help desert plants retain water