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发布时间: 2025-05-24 19:50:43北京青年报社官方账号
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(AP) — The first report cards of the new school year are arriving with a lot more Fs than usual, and it’s not just parents who are getting distressed. School districts from coast to coast have reported the number of students failing classes has risen by as many as two or three times — a sign of the struggles many students are having with distance learning. English language learners, those with disabilities, and other disadvantaged students have been at particular risk.Educators see a number of factors at play: Students learning from home skip assignments — or school altogether. RELATED: Rise in 'F' grades at some North County schools spark virtual learning concernsInternet access is limited or inconsistent, making it difficult to complete and upload assignments.In response schools have been ramping up outreach efforts, prioritizing the return of struggling students for in-person learning and in some cases changing grading policies and giving students more time to complete assignments. 1007

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With Independence Day drawing near, a recent tragedy and subsequent recall highlight the possible dangers of rockets and other explosives: Grandma's Fireworks in Indiana recalled 18 products, totaling 25,000 individual fireworks, after an explosion caused a boy to lose his hand, the 296

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(AP) — Amazon's self-driving robots will be roaming the streets of another neighborhood.The online shopping giant said Tuesday that the six-wheeled robots, about the size of a smaller cooler, will begin delivering packages to customers in Irvine, California. It comes after Amazon began testing them in a suburb of Seattle at the beginning of the year.Amazon said the robots, which are light blue and have the Amazon smile logo stamped on its sides, are able to avoid crashing into trash cans or pedestrians. Still, a worker will accompany the robots at first.Other companies have been testing similar delivery robots on college campuses, delivering burgers or soda to students.Amazon said its robots, which it calls Scout, will be delivering orders to doorsteps Monday to Friday and only during the day. 812

  

(CNN) -- Air miles programs should be banned and a levy on frequent flyers implemented in order to reduce carbon emissions from aviation, according to new research.The measure is one of a number of recommendations from Richard Carmichael at Imperial College London, who published a report Thursday on how the UK can meet its target of net-zero carbon emissions by 2050.Carmichael carried out his report for the Committee on Climate Change (CCC), an independent body that advises the UK government, which has previously said the country needed to become carbon-neutral by 2050 in order to fulfill its obligations under the Paris Agreement on climate change.The UK later became the first major economy to legally commit to the target. This report does not represent CCC's recommendations."Flying is a uniquely high-impact activity and is the quickest and cheapest way for a consumer to increase their carbon footprint," the report says.Air miles programs encourage people to take extra flights to keep up their "privileged traveler status" and should be banned, according to the report.So-called "mileage runs" are a common way for travelers to top up their points in order to maintain access to perks such as priority boarding.An air miles levy would be based on the number of miles flown by each passenger, penalizing those who fly the most while leaving the majority of people unaffected.Research shows that 15% of the UK population take 70% of flights, and these travelers -- who tend to be wealthier and less price-sensitive -- would shoulder most of the burden. By way of comparison, 50% of Britons don't fly at all in any one year.The levy would also encourage short-haul flights rather than more damaging long-haul flights, shift demand from planes to trains, and raise money that could be used to fund research into low-carbon aviation technology, the report said."Given the scope for frequent flyers to have carbon footprints many times that of the average UK household, a lack of policy in this area is likely to be increasingly seen as inconsistent and unjust and risks damaging public engagement with climate action," the report reads.While the report pushes for government policies to tackle emissions, private initiatives have already sprung up.Last week, International Airlines Group (IAG) -- which includes British Airways, Aer Lingus and Iberia -- promised to remove or offset all carbon emissions from its fleet of more than 570 aircraft by 2050.IAG said it would replace older aircraft, invest in sustainable jet fuel and develop technology that removes CO2 from the atmosphere.And some employers have signed up to a program that grants extra paid leave for staff who travel by train rather than plane.Climate Perks is an organization that works to encourage people to cut their carbon footprint by traveling by train without sacrificing their vacation time.This story has been updated to clarify the authorship of the report. It was researched and published by Richard Carmichael at Imperial College London for the Committee on Climate Change. 3070

  

(AP) — A utility says it had a problem with a transmission tower near where the Kincade Fire ignited in Northern California wine country, prompting a large evacuation.Pacific Gas & Electric filed a report with the state utilities commission Thursday saying it became aware of a transmission level outage in the Geysers in Sonoma County around 9:20 p.m. Wednesday.The wildfire was reported minutes later in the same area, although it is not clear whether the malfunction sparked the blaze.The state’s largest utility preemptively shut off power in Northern California on Thursday in a bid to prevent toppled electrical lines from igniting wildfires in dry, hot gusty winds.Power was shut off to distribution lines but not to transmission lines. 755

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