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CORONADO, Calif. (KGTV) -- Lifeguards in Coronado are on alert after spotting at least two juvenile white sharks Wednesday and Thursday. According to lifeguards, the sharks were at least a quarter to half a mile off the coast and didn’t appear to be engaging swimmers or showing signs of aggression. “Under existing protocol, the City was not required to close the beach or publicly report the sightings,” said City Manager Blair King. RELATED: 10 to 15 people stung by stingrays in Coronado“However, the City feels it’s important for the community to know that it takes these types of sightings seriously and is carefully monitoring the waters off Coronado. We also are working with Chris Lowe at the Shark Lab to find out more about the separate sightings and what might be going on.”Around 4 p.m. Thursday, a San Diego Fire-Rescue helicopter was called in and confirmed at least two four to five foot-long white sharks off the coast. The city says a lifeguard followed the sharks as they made their way to Point Loma. The city plans to try to tag or take DNA from the sharks over the weekend. According to city officials, it’s not uncommon to see juvenile white sharks offshore. “The shark population is rising and sightings are becoming more commonplace,” the city said in a news release. 1301

CLEVELAND — Scientists at the Cleveland Clinic Lerner Research Institute have successfully reversed Alzheimer's disease in mice.According to a news release, the researchers reversed the formation of harmful plaque in the mice's brains by gradually reducing an enzyme called BACE1, improving their mental function.“To our knowledge, this is the first observation of such a dramatic reversal of amyloid deposition in any study of Alzheimer’s disease mouse models,” says Riqiang Yan, one of the scientists on the team. The study raises hopes that drugs aimed at this same enzyme will soon be able to treat Alzheimer's disease in humans. You can read the full study in the Journal of Experimental Medicine here. 735

CUPERTINO, Calif. – Apple announced Tuesday that it has committed to becoming 100% carbon neutral across its entire business by 2030.The tech company says its corporate operations are already carbon neutral, but now it plans for its supply chain and product life cycle to be too.The new commitment means that by 2030, every Apple device sold will have net zero climate impact, the company said.Apple also released a report Tuesday, detailing its plans to reduce its emissions by 75% by 2030 while developing innovative carbon removal solutions for the remaining 25% of its comprehensive footprint.Apple released a “Climate Roadmap” it will follow as it seeks to lower emissions.Some key points of the plan include increasing the use of low carbon and recycled materials in its products, lowering energy use at its facilities, relying solely on renewable energy, tackling emissions through technological improvements, and investing in forests and other nature-based solutions to remove carbon from the atmosphere.To support its efforts, Apple says it’s establishing an “Impact Accelerator,” which will focus on investing in minority-owned businesses that drive positive outcomes in its supply chain and in communities that are disproportionately affected by environmental hazards.“Businesses have a profound opportunity to help build a more sustainable future, one born of our common concern for the planet we share,” said Tim Cook, Apple’s CEO. “The innovations powering our environmental journey are not only good for the planet — they’ve helped us make our products more energy efficient and bring new sources of clean energy online around the world. Climate action can be the foundation for a new era of innovative potential, job creation, and durable economic growth. With our commitment to carbon neutrality, we hope to be a ripple in the pond that creates a much larger change.”Click here to learn more about Apple’s plan. 1936

Cleveland police have released surveillance footage of a gangland-style drive-by shooting from February in which small children were nearly gunned down in the crossfire.The shooting happened around 6:30 p.m. at a convenience store located in Cleveland, on Feb. 19.According to the footage, there was a gunfight in the parking lot. Two parked SUVs in front of the store were targeted in the drive-by. Camera footage of the shooting shows three cars pull into the parking lot and the occupants inside open fire on the two vehicles. A man and two children who just exited the store were mere feet from where the bullets ricocheted off the building's walls. 681

CLAIREMONT, CALIF. (KGTV) San Diego Police Department is investigating a car meet-up that turned into brief reckless driving exhibition in Clairemont.Viewer video shows several cars doing donuts and burnouts for hundreds of spectators at in major shopping center off Balboa Ave from Friday night.The drivers almost hit people trying to film them and almost crash into fences on the property.Those who attended say the meet-up was organized through private social media accounts.“It’s scary because it starts right next to you and it happens with like a flick of a switch,” said one gearhead who wants to remain anonymous to protect his identity.An SDPD officer is shown responding to the incident in the video and appears to be harassed by the crowd.“People were throwing trash at him and there was a lot of middle fingers that were thrown up,” said another car enthusiast who was the event, “I thought the cop was going to get attacked.”The anonymous gearheads say what happened Friday night is not indicative of car culture and they were upset with how people treated the officer.“I’ve been to multiple meets where… we get to look at some nice cars but then there’s meet’s like this that get out a hand and then cause a horrible image for us,” said the anonymous attendee.SDPD has not clarified if any arrests were made during the incident. 1375