British charity, Christian Aid, says that rising sea levels will hit over one billion people by 2060. Main areas will be the Indian sub-continent and Florida in the US. Cities such as Miami, Kolkata, Mumbai and Dakar will be the most at risk.
This report comes hard on the heels of another by Environmental Research Letters showing that five islands in the Solomon Islands Archipelago have disappeared, six others have had swathes of land overrun by the sea and a further 22 are at serious risk of inundation.
Christian Aid's forecast of 2060 looks optimistic and could well be brought forward a decade or two.
On the other side of the coin comes India's proposal to divert rivers such as the Bramaputra and Ganges to reduce problems with year-on-year drought. The issue there is that many large rivers in S.E. Asia are suffering low water but high pollution levels. These rivers include the Bramaputra and Ganges, the Yangtze and Yellow rivers in China and the Mekong in Vietnam.
Another problem for India is that in the Punjab, the food basket, wells needed to irrigate wheat and rice crops are now having to be dug many metres deep, in some places over 100 metres, to reach the aquifer. And over in the US the Ogallala aquifer could run dry as early as 2028. That would impact on world food production and also the lives of some 2.5 million people who rely on it for drinking water.