How can ocean erosion be slowed down?

Answer 1

being a Geomorphologist, I can tell you that you have said it exactly. It can only be slowed not stopped. there are many types of programs to help slow ocean erosion they are placed in primarily 2 categories. hard and soft solutions.

hard solutions:

1. The use of concrete walls and buttresses.
2. wood and steel pilings
3. Jetty and stone escarpments, walls, slopes, and barriers
4. even sinking ships close to shore and concrete filled tires

Soft solutions:

1. sand replenishment
2. flora placement and covering
3. floating barriers
4. dredging close to the shore to create a deep water effects thus removing the long shore drift.
5. there are about 100 different types of soft solution ideas

Answer 2

There are the engineering methods mentioned in other replies that can be used to slow rates of erosion below rates that would occur naturally. In some places erosion rates are higher than natural because natural features have been eliminated. Restoration of natural features would slow erosion that has accelerated in many different environments. Some of the natural components that have been reduced or eliminated from some coastal areas include: dune grasses and other dune vegetation, sea grass, mangrove forests, and oyster beds. The practice of raking organic material from beaches and dredging for shipping lanes often keeps many coastal areas in a constant state of instability.

Answer 3

Read my answer for 'erosion control'. The same rules apply.
Planet earh is billions of years old and constantly evolving (every day) so no matter what humans do - earth will go on as it always has.

Answer 4

ocean ersion cannot be slowed down. water is always eroding rock untill it is worn away