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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

SAN YSIDRO, Calif. -- A quick conversation with a customer is now a rare interaction for border town business owner Sunil Gakhreja.“There is no business. You’ve been in here for 20 minutes and no one’s come in, no one’s even crossed by in front of us,” said Gakhreja.The Department of Homeland Security banned all non-essential travel between the United States and Mexico because of COVID-19.For business owners in the small border town of San Ysidro, about 20 minutes south of San Diego, this closure is suffocating their livelihood.“When they close the border, economically, it affects us a lot. That’s our main bread and butter,” said Gakhreja.The San Ysidro Chamber of Commerce said 95% of the customers in the stores cross the border from Mexico into the U.S. to shop.The chamber reports now that border crossings are restricted—businesses are losing .8 million per day.Gakhreja is no exception. He was forced to lay off the entire staff at his perfume shop.“It’s only me and my wife working. That’s how we can survive.”The family’s entire livelihood hangs on the success of one strip mall on San Ysidro Boulevard. They just opened a pizza shop next door named for Gakhreja’s mother Maya.It’s a tribute he’s desperately trying to keep alive.“We put everything— our soul in there, our money, every single penny we have. I don’t want to let it go down, in any way,” he said.Sunil has been in the United States for more than two decades after immigrating from India.He said this city gave him the chance for a different life than he had growing up.“This country has given me everything,” said Gakhreja. “I am here because of this community. This border town has given me everything: the ability to buy my house, to run my business, I couldn’t be more blessed, but I don’t want to give up my hope. I want to hold on to that last breath that we have.”The San Ysidro Chamber of Commerce is handing out PPE to help small businesses hold on. Packages of hand sanitizer, masks, face shields and gloves will go out to any business that needs it.“Being safe, PPE, distancing ourselves, wearing our masks, that’s the way to protect ourselves,” said Jason Wells of the San Ysidro Chamber of Commerce. “Not being xenophobic and doing things like closing the border.”Gakrehja said this street on the border can’t wait too much longer.“You’re going to lose jobs, people will go into depression, this is our American dream,” he said.Gakrehja is just hoping lawmakers see one thing: in times of turmoil—keeping people apart can cause great pain.“We have to understand we are a great nation, but at this time we need other people’s help too,” he said.The border closure is extended until July 22, 2020. However, for the past several months, the deadline has been extended several times. Business owners fear that will continue to happen. 2833

SAN RAMON, Calif. (AP) -- Pacific Gas & Electric is expected to plead guilty to 84 felony counts of involuntary manslaughter for a wildfire that wiped out most of a Northern California town.In a court hearing Tuesday, the nation's largest utility will be confronted by the death and destruction caused by its history of neglect and greed.The hearing before Butte County Superior Court Judge Michael Deems comes nearly three months after PG&E reached a plea agreement in the November 2018 fire.Investigators found the fire that destroyed the town of Paradise was ignited by PG&E's rickety electrical grid.The company agreed to pay a .5 million fine and 0,000 for the criminal investigation. 714

SANTA ANA, Calif. (AP) — A California business executive has been sentenced to nearly four years in prison for helping smuggle rifle parts and other military equipment to rebels in his native Syria.Prosecutors said Rasheed Al Jijakli was sentenced Thursday to 46 months in federal prison after a judge said he delivered "instruments of death" to Syria.Jijakli pleaded guilty to conspiring to export tactical gear that included dozens of laser-sighting devices and day- and night-vision rifle scopes.Prosecutors say Jijakli violated the International Emergency Economic Powers Act and sanctions imposed on Syria by the United States.The Palmyra Corp. CEO admitted directing co-conspirators to withdraw ,000 from the check cashing business to buy tactical gear for Syrian rebels.Various rebel groups have fought the government of Syrian President Bashar Assad. 869

SAN YSIDRO (KGTV) -- Two people were struck and killed early Sunday morning when the group they were with ran across the freeway near the San Ysidro border crossing, U.S. Border Patrol officials said. 208