Friday, 30 July 2010

Floods caused by global warming will green deserts

Posted to Liberal Idea 'Direct action on water and the environment' on 30/7/2010 at 1:41 PM

Throughout the past many centuries, the exposed area of the sea has not diminished; and if the earth is warming up, the evaporation rate should be higher, and therefore, rain should fall more frequently. The hypothesis about global warming causing severe droughts seems contradictory.

The crystal ball gazers reckon that the global warming will cause the melting of polar ice and drought. The sea level will rise to as much as 25 metres. If that is the case, why should we worry about the drought? Arid land will be flooded and irrigated by the rising water. The Simpson Desert, the Sahara Desert and the Gobi Desert, just to name a few, will probably become fertile farmland which could support a few more billions people.

Before the sea level increases to such height, much of the water will have channelled into the existing river system, or new rivers formed. Part of the water will also fill the artesian wells, which for the past decades, have been drained close to empty for farm use and domestic consumption.