Quantcast
Connect with us

Land beneath Silicon Valley is sinking fast: study

Published

on

The San Francisco Bay area’s Silicon Valley is home to a plethora of wealthy tech companies, but the sinking land beneath risks leading to far worse floods in the years to come, researchers said Wednesday.

This sinking, or subsidence, coupled with sea level rise, doubles the territory in the area known as Silicon Valley at risk of flooding by 2100, said the report in the journal Science Advances.

ADVERTISEMENT

Until now, official government flood maps and projections have been based solely on estimates of sea level rise.

“The ground goes down, sea level comes up, and flood waters go much farther inland than either change would produce by itself,” said lead author Manoochehr Shirzaei, assistant professor in Arizona State University’s School of Earth and Space Exploration.

Most of the San Francisco Bay shoreline is sinking by less than two millimeters a year, but “in several areas we discovered subsidence rates of 10 millimeters (half an inch) a year and more,” said the study.

At particular risk are structures built mostly on landfill, such as the San Francisco International Airport which handles more than 200,000 annual landings and sees 56 million passengers passing through each year.

ADVERTISEMENT

“When land subsidence is combined with projected rising sea levels, water will cover nearly half the airport’s runways and taxiways by the year 2100,” said the study.

Another trouble spot is Foster City, also built on reclaimed land between San Francisco and San Jose.

Since real estate is costly and hard to come by, an increasing number of companies have established themselves where “significant parts of the city will be at risk of flooding by 2100,” said the report.

ADVERTISEMENT

Treasure Island, located between San Francisco and Oakland, is also sinking fast, at a rate of one-half to three-quarters of an inch (12 to 20 millimeters) per year.

Previous studies, which did not take sinking land into account, estimated that at a minimum, 20 square miles (51 square kilometers) of San Francisco Bay shoreline will face a risk of flooding by the year 2100.

Adding the effects of sinking ground along the shoreline, scientists found that the area threatened by rising seawater rose to at least 48 square miles (125 square kilometers).

ADVERTISEMENT

The upper level, or worst cast scenarios in which sea levels accelerate due to glacial melting, predict around 160 square miles (413 square kilometers) at risk of flooding by century’s end.

The new findings are based on state-of-the-art satellite-based synthetic aperture radar (InSAR), collected from 2007 to 2011.

“There are many estimates and models for sea-level rise,” said Shirzaei.

ADVERTISEMENT

“But they all fall short because they don’t take into account land elevation changes.”


Report typos and corrections to: [email protected].
READ COMMENTS - JOIN THE DISCUSSION
Continue Reading

CNN

Rick Santorum rips into Corey Lewandowski’s ‘flippant’ admission that he’s happy to lie to the media

Published

on

During his testimony before the House Judiciary Committee, President Donald Trump's former campaign adviser Corey Lewandowski — who was hoping to leverage his appearance trashing Democrats and the Russia investigation for a Senate run in New Hampshire — was forced to admit that he constantly lies on air.

On CNN's "Anderson Cooper 360," even former Sen. Rick Santorum (R-PA), a staunch defender of the president, was aghast at this.

"Senator, isn't it kind of a weird way to run for Senate by admitting that you're happy to lie to the American people?" asked Cooper. "I know he was phrasing it as lying to the media, lying to reporters, but, you know, it's not as if — the end result is you're lying to the American people. You are giving people false information. And you're fine with that? You have no moral problem with that?"

Continue Reading

Breaking Banner

Right-wingers have a full-blown freakout over Kavanaugh revelations — and it could blow up in their faces

Published

on

Do Republicans think “men are the real victims of sexism” is a winning argument going into the 2020 election? That sounds preposterous, but there are strong indications that Donald Trump and other leading Republicans believe they can win by feeding a “victim mentality” in men, a mentality they otherwise tend to decry when detected in actual victims.

On Sunday, the New York Times published an article by the authors of a new book about Supreme Court Justice Brett Kavanaugh, introducing more corroborating evidence for claims that Kavanaugh had a history throughout high school and college of getting trashed and then sexually abusing his female classmates. That story, almost a year after Kavanaugh’s momentous confirmation hearings, was interesting further evidence that Kavanaugh likely perjured himself before the Senate. Ultimately, it doesn’t really change anything, since there’s little reason to believe that anyone actually believed Kavanaugh was telling the truth at the time.

Continue Reading
 

Facebook

Air Force admits it ‘would’t be surprised’ if they were ‘Trump Turnberry’s largest customer’

Published

on

The Air Force has not only been staying at Trump's resorts for three years, but they were also likely the largest customer of Trump's Scottish golf club.

Washington Post reporters David Fahrenthold and Jonathan O'Connell outed President Donald Trump for working his official relationship with the Saudi royal family so they'd stay at his hotels. Politico reporter Natasha Bertrand uncovered the fact that the U.S. Air Force was being used to funnel cash to the president's companies.

Trump's Turnberry resort was losing money until he was able to reroute Air Force plans to land in Scotland to refuel instead of a military base. While that might cost American taxpayers significantly more money, it was good business for the president. Now the resort is doing extremely well.

Continue Reading
 
 
Help Raw Story Uncover Injustice. Join Raw Story Investigates for $1. Go ad-free.
close-image