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The colors of an autumn afternoon can be serene, brilliant and breathtaking.“As the days start getting shorter and the nights get longer, that's the cue that the trees get to change the foliage,” said climate scientist Astrid Caldas.That foliage requires a delicate dance of temperature and moisture to produce fall colors. It’s a dance potentially now in jeopardy due to climate change.“Because these things -- temperature and precipitation, rainfall -- are being affected, changed by climate, then the fall foliage can really get affected,” said Caldas, who is a senior climate scientist at the Union of Concerned Scientists, a nonprofit science organization.She said long-term shifting temperature trends and more rain will be disruptive to fall foliage in certain parts of the country.“We are seeing extreme precipitation increase, particularly in the Northeast and the Midwest,” Caldas said.That precipitation was evident in Minnesota, where people found themselves caught off-guard this year by an unusually early snowfall."I had to completely disassemble my fall leaf clean-up box and make sure my plow is still working,” said Greg Futchi, who is a landscape contractor. “We usually get all the leaves down before we see some snow, but not this year."All of that added moisture can lead to a shorter fall foliage season, Caldas said. Yet, repeated and ongoing droughts, like those seen in the western U.S., also bring their own set of problems to autumn leaves.“When it’s very dry, the colors get a little more muted also,” Caldas said. “So, drought can really kind of change completely the setup.”Scientists add that climate change isn’t just going to affect the ways leaves change their colors during the fall. It’s also going to potentially affect where those trees grow in the first place.“When the conditions start changing --like it's starting to get warmer further and further north--well, that's also a possibility that species are going to start migrating farther north,” Caldas said. “So, as different trees start moving to different areas, then the colors may change because the color depends on the tree.”That may mean having to travel farther north to see stunning red maples. It is a change that will be hard to stop unless action is taken on a global scale.“In the long run, if the countries and the whole world is not committed to really reducing emissions and changing to renewables and making that complete change, then it's going to be very hard for us not to see very drastic changes, because small changes are already happening,” Caldas said.Those changes are now encroaching on a time-honored spectacle, courtesy of Mother Nature. 2667

The Environmental Protection Agency announced on Monday that some Lysol products could kill COVID-19 on surfaces in just two minutes.In a press release, the agency said that Lysol Disinfectant Spray and Lysol Disinfectant Max Cover Mist could effectively kill the coronavirus.“EPA is committed to identifying new tools and providing accurate and up-to-date information to help the American public protect themselves and their families from the novel coronavirus,” said EPA Administrator Andrew Wheeler in the release. “EPA's review of products tested against this virus marks an important milestone in President Trump’s all of the government approach to fighting the spread of COVID-19."The agency said the Lysol products were the first products that had been reviewed by its laboratory testing data and approved label claims. 834

The devastation brought about by this hurricane season creates a new set of headaches for President Donald Trump and an already overwhelmed Congress -- and underscores the urgent need to resolve the financial crisis that had battered Puerto Rico and the US Virgin Islands before the recent storms and floods arrived.The President and Congress can no longer ignore their duty to rescue millions of Americans living in our tropical territories. The standard range of the Federal Emergency Management Agency and other disaster recovery programs will cover a good chunk of the storm damage, but the need for financial rebuilding is every bit as necessary as the new homes, roads and power grid the islands need. 730

The country's top infectious disease doctor is warning we are in a critical weekend for coronavirus cases."We don't want to see a repeat of the surges that we have seen following of the holiday weekends,” said Dr. Anthony Fauci, Director of the National Institute of Allergy and Infectious Diseases.There were surges after Memorial Day and Fourth of July due in part to large social and family gatherings. Labor Day has the potential to be the same.“One of the things I think vie seen people make a mistake with is they fool themselves about these pandemic pods, like its OK for me to be around this other family and we'll both be safe, and then it will be OK, we'll be like a household, but what many people don’t realize is all these pods are basically interconnected,” said Dr. Dean Blumberg, Chief of Pediactric Infectious Diseases at UC Davis Children’s Hospital. “Very few people actually do that and limit the interaction.”Another reason people get complacent with social distancing and mask wearing is because the people they are around look and act healthy. But infectious disease experts remind us two thirds of transmission of the virus are from people who have no symptoms.Blumberg says he's also seen outdoor gatherings start off with good intentions.“You start off 6 feet distanced, but when you're having a good time, people just naturally forget, and it’s really with the larger social gatherings that this is more of a risk,” said Blumberg.The other big concern with Labor Day gatherings is having virus surges headed into fall and winter. That's when infectious disease doctors say coronaviruses tend to spread the most and when flu season starts to ramp up.Also, with school back in session, there's the risk of shutting down or delaying opening in-person learning, depending on how people handle Labor Day. 1834

The county of San Diego is preparing to ask the state for nearly million to repave stretches of hundreds of roads it maintains.The Board of Supervisors could vote Wednesday to seek revenue from the recent gas-tax hike to repair the roads. The roads are in all ends of the county, from Bonita to Alpine to Vista. You can see a list of the roads here (it starts on page 3)."The proposed projects will improve the overall condition of the roads and will protect roads from deterioration and costly future repairs," a county staff report said. Gov. Jerry Brown signed the billion gas tax hike into law last year. Californians already pay a series of gas taxes ranking among the highest in the nation. The tax hike raised the per-gallon tax by 12 cents last November, with future increases planned. The bill, SB1, also added a 0 fee to the annual registration for electric vehicles, starting with model year 2020."People can't afford it. I'm retired but if you're working and have to commute, I don't think people realize how much of a dent that's going to make," said Vicky Bamburger, a Bonita resident who is supporting an effort to repeal the tax that appears to be headed to this November's ballot.But those who support the increase say fixing the roads will save California drivers from expensive car repairs due to problems like potholes, and save taxpayers from larger repairs later."A small improvement now - if you have a road that needs to be covered - that's going to be so much more cost effective, cost saving in the long run," said Catherine Hill, of the League of California Cities.Local governments have until May 1 to submit their gas-tax revenue road repair requests to the state. Still, county agencies have already received millions of dollars in new revenue for road repairs, which includes major improvements to Interstate 5 in North County.  1892

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