Southern Asia is already the wettest area on the continent
and one of the wettest regions in the world, receiving an average of at least
1000mm of rainfall a year. According to statistics from Belgium's Universite
Catholique de Louvain's Emergency Events Database, since 1950, more than 2.2
million people in these countries have been killed by flooding. Intergovernmental
Panel on Climate Change (IPCC), wrote in its latest report the Asia region was
already suffering "huge economic losses" from weather and climate
disasters, with one quarter of the entire world's economic losses from
disasters in Asia alone.
For large established cities there are two options- physical
infrastructure to keep the water away from citizens and preventative measures
to keep people away from the water. And preparedness, early warning systems,
green infrastructure, things like that. Research found that early warning
systems are perhaps the best investment that a country and a city can make. A
proverb has "A dollar invested in early warning systems can save four to
eight dollars in avoided losses later on."
In
regards of Bangladesh, a study in 2010 found it would cost more than $2.6
billion to adequately protect Bangladesh's roads, railways and drainage
systems. But, experts suggest local changes won't be enough though, and say
flood basins in China, India and Bangladesh need to coordinate across cities to
find the best locations for housing and to halt flooding in its path as well
establish a mutual agreement on inter river linking on that continent.
Source: http://edition.cnn.com/2017/07/24/asia/climate-change-floods-asia/index.html?sr=fbCNN072517climate-change-floods-asia1010AMVODtop
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