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MANOA, Hawaii – As much as 40% of all beaches on Oahu, Hawaii’s most populated island, could be lost by 2050 due to rising sea levels and the current policies to address the threat.That’s according to a new study from the University of Hawaii’s School of Ocean and Earth Science Technology.Researchers looked at the risk of shoreline hardening, the construction of seawalls and revetments. They say the process accelerates erosion and interrupts natural beach migration.Scientists assessed the Oahu shoreline that would be most vulnerable to erosion and identified the location and severity of risk of shoreline hardening and beach loss, and a potential timeline for the increase in erosion hazards.They found the most threatened properties fall into an “administrative erosion hazard zone,” an area likely to experience erosion hazards and qualify for the emergency permitting process to harden the shoreline.“By assessing computer models of the beach migration caused by 9.8 inches of sea level rise, an amount with a high probability of occurring before mid-century, we found that emergency permit applications for shoreline hardening to protect beachfront property will substantially increase,” said Kammie Tavares, who led the study.Co-author Dr. Tiffany Anderson says they’ve determined that almost 30% of all present-day sandy shoreline on Oahu is already hardened and another 3.5% was found to be so threatened that those areas qualify for an emergency permit now.“Our modeling indicates that, as sea level rises about 10 inches by mid-century, an additional nearly 8% of sandy shoreline will be at risk of hardening—meaning at that point, nearly 40% of Oahu’s sandy beaches could be lost in favor of hardened shorelines,” said Anderson.Fletcher and her fellow researchers are calling on government agencies to develop creative and socially equitable programs to rescue beachfront owners and free the sandy ecosystem, so that it can migrate towards land as it must in an era of rising seas.“It is urgent that options are developed soon for beachfront landowners and resource managers to avoid further destructive management decisions,” said Fletcher.“This research shows that conversations on the future of our beaches and how we will care for them must happen now rather than later, if we are to protect our sandy beaches,” said Tavares. 2354

MEXICO CITY (AP) — Mexico's Economy Department said Tuesday that U.S. consumers could pay 38% to 70% more for tomatoes after the U.S. Commerce Department announced it would re-impose anti-dumping duties on Mexican imports.The Mexican agency said the country exports about billion in tomatoes to the United States and supplies about half the tomatoes the U.S. consumes annually.It said that many small- and medium-sized Mexican tomato exporters won't be able to pay the deposits required to export. Tomatoes are Mexico's largest agricultural export after beer and avocadoes, and tomato growing and harvesting provides about 400,000 jobs in Mexico.But the deposits required to comply with the 17.5% U.S. tariff would amount to about 0 million, money that many Mexican producers don't have.RELATED: Mexico price dispute leading to avocado shortageIn March the Commerce Department announced it was ending a 2013 suspension agreement in which Mexican growers promised to sell at fair prices, and that it would reinstate the 1996 tariffs. The Mexican government said its growers continue to negotiate with the U.S., and expressed hope that another agreement, like ones that have been in place for 23 years, could be reached.U.S. growers, mainly in Florida, say Mexican tomato producers charge below fair prices; U.S. growers also have a hard time competing with Mexico's extremely low wages.However, the availability of Mexican tomatoes has increased the availability of fresh tomatoes year-round and helped lead to an increase in U.S. tomato consumption from an average of about 12 pounds per person in the 1980s to almost 21 pounds in 2011. 1650

Mark Zuckerberg has a clear message for Congress in the wake of the Cambridge Analytica scandal: It's my fault.The Facebook CEO will take the blame for mistakes that led to the Cambridge Analytica scandal and lay out steps taken to prevent it from happening again, according to a copy of Zuckerberg's remarks as prepared for delivery to one of the committees before which he will be testifying. "It's clear now that we didn't do enough to prevent these tools from being used for harm as well. That goes for fake news, foreign interference in elections, and hate speech, as well as developers and data privacy," Zuckerberg said in the prepared remarks, which were released by the House Committee on Energy and Commerce on Monday."We didn't take a broad enough view of our responsibility, and that was a big mistake. It was my mistake, and I'm sorry. I started Facebook, I run it, and I'm responsible for what happens here."Zuckerberg is set to appear before a joint hearing of the Senate Judiciary and Commerce committees on Tuesday afternoon followed by a House Energy and Commerce Committee hearing on Wednesday morning.  1135

Lutz, Fla. — The driver of a Tesla plowed through the wall of an empty storefront and then into the side of the Anytime Fitness on North Dale Mabry Highway in Pasco County, Florida.No one in the gym was hurt, although witnesses tell Scripps station WFTS in Tampa there were several people working out at the time, which was before noon on Sunday, April 22.The driver was also not injured.Florida Highway Patrol and the Pasco County Sheriff’s Office responded to the scene.The driver told troopers and deputies that she was coming into the parking lot to stop at the nearby nail salon, and said she was pressing the brakes, but the vehicle kept accelerating.The first store she crashed into used to be a karate studio where kids would normally be working out, but that business recently re-located.Her vehicle slammed through a second wall, into the gym next to several treadmills.Authorities did not administer a sobriety test, according to the crash report.Tesla vehicle are equipped with what is called “Auto-Pilot” mode, but auto-pilot is not the vehicle’s mode of functioning, especially if the vehicle is not on a highway and is turning into a parking lot. 1179

MEXICO CITY— The U.S. State Department has issued a travel warning for Mexico following reports that eight bodies were found in the resort town of Cancun.According to Newsweek, the bodies of a man and woman were found in the trunk of an abandoned taxi early Monday, and the bodies of two other men were found dismembered in plastic bags at a nearby location.A fifth man was reportedly found bound and shot to death on Tuesday, a sixth man was "murdered in a hammock," a seventh person was shot and left covered by a bag, and the eighth victim was found decapitated in a Tres Reyes neighborhood. 607