Human Interaction Explain, with reference to examples(s) that you have studied, how human activities have impacted the operation of any one of the following surface processes: - Mass movement processes - River processes - Coastal processes. - Leaving Cert Geography - Question C - 2010

Coastal development can lead to increased erosion rates due to the alteration of natural sediment distribution and disruption of natural wave patterns, which can diminish coastal protection.

An example of this is the coastal development seen in Miami, Florida, where extensive construction along the shoreline has led to notable beach erosion.

The impact of coastal development on erosion can manifest in various ways. Firstly, the hardening of coastlines through seawalls and jetties often prevents the natural movement of sand, which can lead to scouring of nearby beaches. In Miami, this construction has resulted in loss of beach area, affecting both natural habitats and recreational spaces. Furthermore, increased runoff from impermeable surfaces can lead to sedimentation in marine environments, impacting local ecosystems.

Additionally, as coastal areas become more developed, the natural resilience of the coast to storm surges is often compromised. This has been clearly observed during hurricanes, where developed coastlines suffer more damage than those with preserved natural barriers.

In conclusion, human activities such as coastal development not only impact the physical landscape through erosion and habitat loss but also have broader ecological implications, illustrating the critical need for sustainable planning in coastal zones.