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Scientists are proposing an ingenious but as-yet-unproven way to tackle climate change: spraying sun-dimming chemicals into the Earth's atmosphere.The research by scientists at Harvard and Yale universities, published in the journal Environmental Research Letters, proposes using a technique known as stratospheric aerosol injection, which they say could cut the rate of global warming in half.The technique would involve spraying large amounts of sulfate particles into the Earth's lower stratosphere at altitudes as high as 12 miles. The scientists propose delivering the sulfates with specially designed high-altitude aircraft, balloons or large naval-style guns.Despite the technology being undeveloped and with no existing aircraft suitable for adaptation, the researchers say that "developing a new, purpose-built tanker with substantial payload capabilities would neither be technologically difficult nor prohibitively expensive."They estimate the total cost of launching a hypothetical system in 15 years' time at around .5 billion, with running costs of .25 billion a year over a 15-year period.The report does, however, acknowledge that the technique is purely hypothetical."We make no judgment about the desirability of SAI," the report states. "We simply show that a hypothetical deployment program commencing 15 years hence, while both highly uncertain and ambitious, would indeed be technically possible from an engineering perspective. It would also be remarkably inexpensive."The researchers also acknowledge potential risks: coordination between multiple countries in both hemispheres would be required, and stratospheric aerosol injection techniques could jeopardize crop yields, lead to droughts or cause extreme weather.The proposals also don't address the issue of rising greenhouse gas emissions, which are a leading cause of global warming.And despite the conviction of the report's authors, other experts were skeptical."From the point of view of climate economics, solar radiation management is still a much worse solution than greenhouse gas emissions: more costly and much more risky over the long run," said Philippe Thalmann of the école Polytechnique Fédérale de Lausanne, an expert in the economics of climate change.David Archer of the Department of Geophysical Science at the University of Chicago said, "The problem with engineering climate in this way is that it's only a temporary Band-Aid covering a problem that will persist essentially forever, actually hundreds of thousands of years for fossil fuel CO2 to finally go away naturally."It will be tempting to continue to procrastinate on cleaning up our energy system, but we'd be leaving the planet on a form of life-support. If a future generation failed to pay their climate bill they would get all of our warming all at once." 2830

School is back in session at Ohio State University. However, more than 200 students aren't returning to the classroom just yet after they were suspended for violating the school's new coronavirus pandemic policy.Ohio State leaders say 228 students broke campus guidelines about social gatherings since returning to campus.Students began moving back to the Columbus campus on Aug. 19. Upon their return, the university told students they needed to wear masks, practice social distancing and limit their get-togethers to no more than 10 people.There's no word on how long the students' suspensions will last, but school leaders hope it will show others how serious they are about controlling the spread of COVID-19 on campus.Several other large universities across the country have been forced to suspend classes after large outbreaks of the virus on campus. Notre Dame shifted to remote learning after 150 students tested positive for COVID-19 after a week on campus. The University of North Carolina at Chapel Hill made a similar shift after 130 students tested positive for the virus after a week of classes.Also last, school administrators at Syracuse University admonished a group of students for holding a large gathering on the school's quad, adding that the even may have already derailed plans for in-person learning. 1332

SEATTLE (KGTV) -- Newly released body camera footage shows the moment police officers nabbed a pair of thieves trying to walk out of a Seattle-area Costco carrying ,200 worth of laptops and vacuums.On March 14, South Precinct officers responded to a call at about 5:30 p.m. of a shoplift in progress at the Costco, police said. Loss Prevention officers inside the store recognized one of the suspects inside and said he had previously stolen items in the past and run out the fire exit. Responding Seattle Police Department officers spotted a female driver inside a black Toyota that was backed up to the store's emergency exit doors.  The officers pulled their patrol vehicle in front of the Toyota to prevent it from leaving and contacted the 18-year-old woman, police said.As police were talking with the woman, they could hear someone attempting to open the doors."Moments later, two suspects, a 30-year-old man and a 21-year-old woman opened the emergency doors and attempted to walk out of the store carrying stolen computers and vacuum cleaners," police said.Officers located a 7″ fixed blade from the male suspect. According to the security personnel, the suspect had carried a large knife in past incidents.The male suspect was later booked into the King County Jail for investigation of robbery, while the two women were booked for investigation of theft, police said. 1428

San Ysidro, CA (KGTV)- The border wait times to cross into the United States are significantly shorter Tuesday.According to a U.S. Customs and Border Protection App, the wait times at the border in San Ysidro averaged around an hour depending on the time of day.In the last few days, border crossers reported waiting up to ten hours to cross into the U.S."A lot of people going to the border five, six hours before their work entry, it's been crazy," said Jose Montanez.Montanez is a married father of two. He lives in Tijuana, but crosses to work as a manager at a taco factory. He said the lines this weekend were especially bad, even in the pedestrian lanes."Four hours, five hours waiting in line, standing in line, you get tired," said Montanez.Last Friday, CBP began "adjusting operations" to focus on essential travel. The goal is to slow the spread of COVID-19.A spokesman with CBP sent 10News a statement, that reads in part:"According to the U.S. Customs and Border Protection, a recent survey of more than 100,000 travelers on the southwest border found that the vast majority of cross-border travel by U.S. citizens and lawful permanent residents is for purposes that are not deemed essential. To respond to the ongoing public health crisis and protect local southwest border communities, CBP is taking measures to discourage non-essential travel to and from Mexico to limit the spread of COVID-19 in the United States. "Fewer lanes and increased secondary inspections led to massive delays."If they have to ask more questions and isolate people from one another so the essential workers can go and cross faster, that would be perfect," said Montanez.Instead, innocent workers are feeling the impact the most."Those that are crossing right now are doing so cause they really need to and they're going to continue crossing," said Paola Avila, of the San Diego Regional Chamber of Commerce.Restrictions have been in place at the border since March. Avila said the new protocol now doesn't make sense, especially since San Diego County is off the state's COVID-19 monitoring list."Non-essential businesses are going to start reopening. More businesses are going to start reopening, so you're going to have a greater workforce that's going to have to facilitate those businesses reopening, but now you're going to have these restrictions. It's not in sync with the rest of our procedures and regulations and restrictions," said Avila.She worries the strategy could backfire and lead to more virus spread, especially for people using the pedestrian walkway."Now, you have large masses of people with no social distancing, you're creating an unsafe environment," said Avila.Montanez says he does his best to keep his distance while in line."You do, even though, you're close to each other, there's no space between the front and the back of you," said Montanez.Agency officials urge people to only travel to Mexico if it's necessary."We need people to think twice about non-essential travel and to ask themselves if the travel is worth risking their lives and the lives of others. Mexico continues to experience spikes in positive COVID-19 cases along the Southwest border and it is our duty to do everything we can to protect our nation, including educating citizens and even discouraging non-essential travel to Mexico." 3336

SDCCU is proud to recognize Kristin Collins as part of SDCCU Classroom Heroes, a program held in partnership with iHeartMedia, Inc. San Diego. Collins is a 7th grade teacher at Heritage Digital Academy Charter School in Escondido. Collins was nominated for being an unbelievable teacher who creates a bond with her students that lasts well beyond the one year that she spends with them in the classroom. The nominator recognized that Collins documents each school year by taking photos of her students participating in various projects and activities and creates an “amazing” end of the year video for them. 635

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