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Climate change is already having a big impact on the rate of natural disasters across the world. One such natural disaster is flooding – increased rainfall and rising sea levels are resulting in rivers and seas more regularly bursting their banks.
In the UK, an increase in floods and an increase in the population is leading to more homes and businesses being damaged by flooding. Things are only expected to get worse in the future as the population continues to increase and climate change continues. In fact, the cost of flood damage in the UK could increase 15-fold by the 2080s.
Taking steps to fight climate change is necessary in order to eventually put a stop to the increase in floods. In the meantime, the UK will need to invest in flood defence measures to protect homes and businesses against the inevitable increase in flooding. Is the UK already doing enough or could it be doing more? This post takes a brief look at some of the anti-flood measures that need to be brought in.
Improving coastal defences
Coastal defences such as The Thames Barrier are already in place to prevent flooding, but these defences will need to be improved in the future if they are to protect against rising sea levels at the current increasing rate.
The UK has already invested a huge amount of money into improving sea defences. However, there has been much debate as to whether it’s enough or whether it is truly viable to protect the entire coast.
Using geospatial technology
Geospatial technology can be used to predict flooding and therefore put in place greater defences when necessary. Geospatial technology is currently integral to things like dam monitoring, helping to check the condition of the dam and embankment in order to prevent a breach.
Right now, many dams are embracing geospatial AI so that they can react faster to risks. More dams will need to embrace this technology in the future in order to prevent disaster.
Flood-proofing buildings
Another solution is to start integrating flood defence into the construction of all new buildings that may pose a threat. This includes making sure that buildings are well sealed or raised. Alternatively, it could include allowing water to flood homes and offices, but making sure that sockets are raised to a safe height or that water-resistant flooring is used on lower levels.
Many new buildings in high-risk flood zones are being built with these measures. However, a great proportion of buildings will need to be renovated with flood defences to protect against the risk of flooding in the future.
‘Managed retreat’ measures
The managed retreat involves removing buildings that pose too much of a flood risk and relocating people in high-risk flood zones. The aim is to build more in-land or build in higher areas where flooding cannot reach.
While some areas of the UK have started doing this, many high-risk flood areas have not taken much action. In fact, new buildings are still being constructed in many flood plains, including entire residential areas.
