It is expected that rising sea levels will lead to higher rates of coastal erosion, and a higher risk of coastal flooding, along some undefended stretches of the East Riding coast. As detailed in the Shoreline Management Plan, we will respond to these conditions by working with, rather than against, natural processes.
In the East Riding, sea level rise is caused by a number of factors, including the very gradual sinking of the land as a result of the last ice age. This process is called isostatic change and results in local sea level rise of around 3mm per year. The rate of local sea level rise may increase to around 8mm per year when we take into account global sea level rise driven by climate change. The key factors in global sea level rise are thermal expansion caused by the warming of the oceans, and the loss of land-based ice due to increased melting.
The Government's projections on sea level rise can be found on the following website:
Defra - UK Climate Projections (external website)
Although harder to predict, it is expected that increased storminess as a result of climate change will also lead to an increase in rates of erosion, and a higher risk of coastal flooding in undefended areas.