HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Places » U.S. » California (Group) » California will face a te...

Thu Jul 12, 2018, 08:41 PM

California will face a terrible choice: Save cliff-side homes or public beaches from rising seas

Washington Post / July 12, 2018

Like an ax slowly chopping at the trunk of a massive tree, waves driven by sea-level rise will hack away the base of cliffs on the Southern California coast at an accelerated pace, a recent study says, increasing land erosion that could topple some bluffs and thousands of homes sitting atop them.

California officials from Santa Barbara to San Diego will face an awful choice as the sea rises, the U.S. Geological Survey study says: save public beaches enjoyed by millions, or close them off with boulders and concrete walls to armor the shore and stop the waves in a bid to save homes.

The study predicts coastal land loss on an unimaginable scale over the remaining century, up to 135 feet beyond the existing shoreline. “For the highest sea-level rise scenario, taking an average cliff height of more than 25 meters, the total cliff volume loss would be more than 300 million meters by 2100,” it says.

One of the study’s authors, Patrick Barnard, a USGS research geologist, tried to explain the issue in a way that laypeople can understand. “It’s a huge volume of material,” he said. “We place this in a context of dump truck loads. It would be 30 million dump trucks full of material that will be eroded from the cliffs.” The trucks would stretch around the globe multiple times, he said.

More: https://www.washingtonpost.com/news/speaking-of-science/wp/2018/07/11/california-will-have-a-terrible-choice-save-cliff-side-homes-or-public-beaches-from-rising-seas/?utm_term=.81b99b217eff



CAPTION: Homes along the edge of the coast in Santa Barbara County, Calif., in 2005. (Patrick Barnard/Pacific Coastal and Marine Science Center/U.S. Geological Survey)

5 replies, 783 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 5 replies Author Time Post
Reply California will face a terrible choice: Save cliff-side homes or public beaches from rising seas (Original post)
Auggie Jul 12 OP
riversedge Jul 12 #1
lapfog_1 Jul 12 #2
msongs Jul 12 #3
Demovictory9 Jul 12 #4
BigmanPigman Jul 12 #5

Response to Auggie (Original post)

Thu Jul 12, 2018, 08:43 PM

1. more people enjoy the beaches-the open air and sea.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Auggie (Original post)

Thu Jul 12, 2018, 08:48 PM

2. Stopping beach erosion

with sea walls and boulders and such has been proven to be ineffective in the long term

The ocean simply used up the wave action energy in excavating underneath the obstacles.

So... you might save the cliffs (and the homes) for a time... but eventually nature will win.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Auggie (Original post)

Thu Jul 12, 2018, 09:09 PM

3. bye bye homes. maybe the owners can get some new ones...in the hills lol nt

Reply to this post

Back to top Alert abuse Link here Permalink


Response to msongs (Reply #3)

Thu Jul 12, 2018, 09:57 PM

4. Better choice..flat land miles from the sea

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Auggie (Original post)

Thu Jul 12, 2018, 10:13 PM

5. People will always build where they shouldn't.

Whether it is in an earthquake zone, a flood zone, a wild fire area, etc. They see their homes destroyed and they choose to rebuild. Sometimes they do not but only when they can not get insurance or the local govt has stepped in for their own safety.

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread