Causes statistics and evidence linking drought and desertification to Global Warming both natural and cultural causes ​

Ibelieve it is the 2nd answer, create gardens on all rooftops. let me know if this .

Npnegytthbduhhgvmone

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.