Dear Setegn,

There are several consequences of rising sea level on the environment . Among them :

1. Marine Submersion

The worsening of coastal flooding is the most immediate consequence of rising sea levels, while other local factors, such as waves, can intervene.

The synthesis report of the IPCC (2014) indicates that a sea level rise of 0.5 m rise by 10-100 times the frequency of flooding in the absence of adaptation. From 2050, the consequences of sea level rise will be such as will require the adaptation of coastal defenses in many coastal towns.

2. Coastal erosion

A significant part of the coast, including sandy beaches, is declining in the world. The effects of rising sea levels on the coastline are now difficult to quantify, but they are potentially very large.

In metropolitan France, the decline in the Aquitaine sandy coast takes place at a rate of 1 to 3 meters / year on average, but has reached 20 m at many sites after the succession of winter storms 2013/2014 . When the only storm Xynthia, setbacks coastline up to 20 m were observed on the beaches of Vendee and Charente-Maritime.

But it is also true for cliff coasts as evidenced by the decline in chalk cliffs of Seine Maritime is in the order of 20 cm / year, but collapses can back up more steep 10-15 m a few seconds.

3. saline intrusion

The rise in sea level could increase the spread of saline intrusion in coastal groundwater. Many uncertainties remain, however, due to the complexity of the processes involved and the local specificity of these coastal aquifers.

Best regards

Prof. Bachir ACHOUR

An excellent  account of consequences of sea level rise on the environment has been briefed by Prof Achour. But I  as a Soil Scientist will see,  how much intrusion in form of soil salinity in newer productive areas  is brought about due to sea level rise , and how the coastal soil ecosystem is damaged so irreversibly that entire agricultural diversity   will come at stake.  you keep on describing ....its so huge and diverse , including the livelihood earning

An excellent  account of consequences of sea level rise on the environment has been briefed by Prof Achour. But I  as a Soil Scientist will see,  how much intrusion in form of soil salinity in newer productive areas  is brought about due to sea level rise , and how the coastal soil ecosystem is damaged so irreversibly that entire agricultural diversity   will come at stake.  you keep on describing ....its so huge and diverse , including the livelihood earning and micro-as well macro- environment

 To answer, one has to start by defining the immediate interest in the specific items of "Environmental Health" (EH), simply because this topic is VERY WIDE !!! Once you define the items, i.e. human..? ecological..? physical..? biological..?

 To answer, one has to start by defining the immediate interest in the specific items of "Environmental Health" (EH), simply because this topic is VERY WIDE !!! Once you define the items, i.e. human..? ecological..? physical..? biological..? having focused on a certain demography-geography (coastal..? rural..? montaine..? degraded land..? etc because these & others can exist near sea).

After that, there remains the major impacts due to stress factors: salt-water intrusion into underground freshwater plus diseases: & surface near-sea conditions impact on ecosystems; physical erosion & submergence; if near-sea area is agriculturally productive; if land is heavily faulted then seawater travels considerably inland; what are existing means of protection (biological, or physical ?) & their effects on nearshore communities... etc.; projections of over-flooding & storm surges on residential or other facilities..