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You will review one of the resources on Canvas to investigate and describe a potential solution or type of mitigation to help humans adapt to sea level rise.

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Sea level Rise | Solutions & Ways to Mitigate

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Sea level Rise | Solutions & Ways to Mitigate

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How to Share Your Solution

1. Create a new post by clicking the + button

2. In the subject, write the name of your proposed solution. Include the location it is applied to.

3. In the body, explain:

How the solutionmitigation works

Why it would be effective

What resources would be needed

Potential challenges or limitations

4. Add one of the following as your visual:

Upload a diagram you’ve created

Add an illustration showing your solution

Your post should be detailed but concise. Review other students’ solutions. Prepare to share out.

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It would be effective because when the water level rises, the concrete seawall will stop the water from coming over the wall due to it being 5-6 ft above sea level. It also protects the land against erosion from the powerful ocean waves.

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The challenge of building massive seawalls around cities is the high cost of building them. Raising seawalls by 12 inches costs about $60 per foot. New seawalls often cost $600 to $2,000 per linear foot. Cities at risk like NYC (302.6 mi²) and Boston(89.63 mi²) are huge, which means the cost of building these seawalls would be in the hundreds of millions of dollars, and that kind of money is not easy to get

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What resources would be needed?

concrete

steel

timber

heavy machinery

local regulations and permits

yearly maintenance

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How does it work?

Using a series of mobile steel gates, that are raised and lowered on command, filling with water and resting on the seabed when inactive and rising to block high tides when activated by compressed air.

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Why Would it be effective?

it can temporarily isolate the lagoon from the sea by raising submerged gates, preventing high tides and storm surges from flooding the city.

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By raising the Boston Harbor walkway and reinforcing the foundation, storm surges that would ordinarily cross over the top of the walk would be mitigated by the added height of the harbor walk. This strategy also maintains waterfront access while opening up space for improvements in stormwater management and tree incorporation.

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Potential challenges or limitations: Raising harbor walks

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Potential challenges or limitations: Raising harbor walks

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Raising harbor walks requires strong foundations that can withstand storms, erosion, and high tides over decades.

Higher walkways could create barriers that trap water inland, worsening flooding if proper drainage solutions aren’t incorporated. Also ensuring continuous maintenance and adaptation to future sea-level rise will need sustained funding and political commitment.

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sea level rise effective harbor walks, and what resources to use

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sea level rise effective harbor walks, and what resources to use

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it is effective since it lays the groundwork for the actions Boston must take to protect its communities from current and future flood risk. To protect Boston from flooding we can raise the elevation of waterfront land to prevent floodwaters from overtopping the land and impacting communities. Raised harbor walks and raised beams can both be creating places for communities to gather while providing flood protection. The raised harbor walk can create waterfront access or preserve existing waterfront access and integrate trees, shade structures, and storm water managements. Since they both can also block the flooding all together.

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Beaches already serve as natural walls for flooding, but are over time eroded by the weather and the tides. A town adds more sand and substrate to a beach.

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this strategy is effective because by adding more sand to the beaches it prevents gradual erosion that pushes coastline inland and prevents water from getting any further inland by adding more sand to absorb the water.

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building up beaches to prevent rising sea levels

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Seawalls are built to decrease flooding from tides and storms, acting as a barrier to protect shorlines from flooding. They do this by reflecting wave energy back into the water.

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Some potential challenges and imitations are erosion, disturbing the environment, visual pollution, and habitat destruction.

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When sea levels rise too much, compressed air forces water out of a gate contraption, which forms a wall between the sea and the lagoon. This protects Venice from up to 3 meters of water.

Potential limitations would be the cost, this project costs billions of dollars that most countries wouldn't be willing to spend. It is also a very time-consuming project, taking about 15 years to finish.

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The things you would need to make beach barriers are sand of course but you would also need a machine to move the sand like a bulldozer so that the sand can be moved to the right spot with the right amount.