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SAN DIEGO — The use of Styrofoam and single-use plastics in the city of San Diego will no longer be allowed beginning Saturday.In January, the City Council voted in favor of banning the use of the products within city limits. The ban goes into effect on Feb. 23, according to the city.However, the city is rolling out the ordinance in phases to “allow businesses and other entities time to implement changes with the overall goal of reducing the use of polystyrene foam and single use plastics” across San Diego.In the first phase, city food vendors will no longer be allowed to provide plastic/bioplastic utensils or straws unless they are requested by a customer.RELATED: 686

Since it landed on Mars in 2012 NASA's Curiosity rover has been exploring Gale Crater, a vast, dry ancient lake bed with a mountain at its center. Now, Curiosity has found sediments containing sulfate salt in the crater, which suggest it once held salty lakes.A range of salts have been found on Mars in different locations. Researchers interpret these as evidence of ancient brines. Salty water formations seemed to increase on the Martian surface as the planet transitioned to an arid climate 3.5 billion years ago.The new detection of sulfate salts came from sedimentary rocks dated to between 3.3 and 3.7 billion years ago. Curiosity has analyzed other, older rocks on Mars and didn't detect these salts in them.Researchers believe the salt is evidence of the crater's lake evaporating in the Red Planet's arid environment. They also believe studying younger rocks in the future could shed more light on how the Martian surface dried out.Gale Crater was created by an ancient impact, then filled in with sediment layers over time. Mount Sharp, the mountain at its center, was created by wind erosion of the hardened sediment layers. Those same layers act like chapters in the history of Mars and provide clues to its environment at each point in time.At the time the sulfate salts were present, lakes were probably scattered across the crater floor, fed by streams in the crater walls. Over time, the streams would overflow and then evaporate, trapped in a repetitive cycle taking place over millions of years.The findings were published Monday in the journal 1576

Sen. Bernie Sanders was informed by U.S. intelligence officials that Russia is trying to help his presidential campaign, the Washington Post 153

SEATTLE, Wash. – Expired food is regularly being sold on Amazon and some are concerned the company isn’t doing enough to stop it.CNBC looked into the distribution of products past their sell-by dates and found customers complaining about several items, including baby formula, granola bars, coffee creamer, chips and other junk foods. Some of the products sold were more than a year past their expiration date. While most expired items aren’t being bought from Amazon itself, 488

Taco Bell has a tortilla problem.The chain said that some restaurants are experiencing supplier shortages of tortillas, and that it is "working diligently to replenish the supply." Taco Bell, which has about 7,000 locations in the United States, did not share how many restaurants are dealing with shortages."We apologize for any inconvenience this might cause," Taco Bell added in a statement. The tortillas are used for its quesadillas and burritos.Some exasperated social media users complained about the limited menu on Twitter."I am at one of your Greater Rochester area locations and they are out of tortillas!" One user wrote on July 1. Another user complained on June 30 of shortages at a location in Rome, New York. A number said they were told by staff that the Taco Bell shortage is happening at locations nationwide.The shortages do not appear to be impacting Taco Bell's competitors.In response to queries, Chipotle and Qdoba told CNN Business that they are not experiencing shortages. Qdoba noted that it doesn't expect any in the near future.Taco Bell encouraged customers to order menu items that aren't made with tortillas, like the Power Menu Bowl or Cheesy Gordita Crunch.Last year, KFC — which, like Taco Bell and Pizza Hut, is owned by Yum! Brands — faced a chicken shortage so severe it had to temporarily shut down hundreds of restaurants in the United Kingdom. The brand apologized to customers for the inconvenience with a tongue-in-cheek ad. 1479

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