jonathan vigliotti is there. >> reporter: america's coldest frontier isn't built for tropical-like heatumans and wildlife found unusual ways to cool off. but in alaska's dense forests, the heat is exposing a lurking danger. >> so this spruce tree was attacked by beetles this year. >> reporter: entomologist jesse mowens says the spruce beetle has devoured more than 900,000 acres of forest. >> what do you think is causing this spike? >> earlier springs followed by later falls allows those larvae to develop more in one season than they would have under some of our normal summer conditions. >> reporter: the spruce beetles deadly appetite is fueling the state's growing number of wildfires which have burned more than 200,000 acres in the last year. >> alaska's glacier acts as a natural coolant. but scientists say they're losing more than two feet in density each year. >> the warming causes snow and ice to melt which then frees up more of the ground to absorb more heat and water. >> reporter: climatologist brian brentsnyder. >> it feeds off itself in a downward spiral. >> reporter: climate cha

jonathan vigliotti is in los angeles. >> they have to go out. >> reporter: president trump promised aave of federal raids sunday but so far immigration sources tell cbs news they've been limited to new york city where federal agents were seen this weekend knocking on doors. acting director matthew allbans on fox news wouldn't confirm or deny those reports. >> i won't speak to specifically anything that is going on an operational perspective. the overarching concern is the safety and security of both our officers conducting the operations and the public. >> reporter: in a statement, ice said they prioritize the arrest and removal of unlawfully pr safety and border security. but many politicians including presidential candidate amy klobuchar question the agency's and president's motive. >> if you really wanted to go after security risks and there are people who are security risks, why would you alert them and say you're doing this on a sunday and do it two weekends in a row? >> reporter: this weekend protesters took to the streets from chicago to oakland, while large scale deportations

but there is no escaping the debate in alaska, where temperatures this summer are jonathan vigliottir: america's coldest frontier isn't built for tropical-like heat, but both humans and wildlife found unusual ways to cool off. in alaska's dense forests, the heat is exposing a lurking danger. >> so this spruce tree was attacked by spruce beetles this year. >> reporter: entomologist jessie moan says in 2018, the spruce beetle has devoured more than 900,000 acres of forest. what do you think is causing this spike? >> earlier springs followed by later falls allows those larvae to develop more in one season than they would have under some of our normal summer conditions. >> reporter: the spruce beetle's deadly appetite is fueling the state's growing number of wildfires, which have burned more than 200,000 acres than last year. alaska's glaciers act as a kind of natural coolant by reflecting the sun's rays back into the atmosphere, but scientists say they're losing more than two feet of density each year. >> the warming causes the snow and ice to melt, which then frees up more of the groun

>>o'donnell: jonathan vigliotti, thank you. also in southern california, more than a dozen u.s.arines are under arrest tonight on charges that include human smuggling. they're based at camp pendleton cn southern california about an hour's drive from the mexican border. david martin has details of an arrest done as a public display for the entire unit to see. >> reporter: first, there were two marines accused of human smuggling. now, there are 16 more, all s ofers of the same battalion arrested at camp pendleton, tlifornia, today, during onrning formation. none of them were among the 6600 active duty and national guard troops assigned to the southwest border. eight more marines were questioned in an unrelated drug case. the first two marines were arrested earlier this month when border patrol agents caught them in the act of picking up three undocumented immigrants from mexico. according to court documents, the three immigrants told investigators they were paying $8,000 to be smuggled to los angeles or new jersey. one of the marines said he was expecting to be paid $1,000 for his

jonathan vigliotti, thanks. still ahead on the cbs weekend news, returning to the moon, a look at nasa's new deep space capsule. later, at cooperstown, a unanimous induction for the first time ever. and a ballerina's painful steps to success. neration, which could lead to vision loss. so today i made a plan with my doctor, which includes preservision. because it's my vision, my love of the game, my open road, my little artist. vo: only preservision areds 2 contains the exact nutrient formula recommended by the national eye institute to help reduce the risk of moderate to advanced amd progression. man: because it's my sunset, it's how i see my life. it's my vision. preservision. whenwhy wait?ows type 2 diabetes your way,... hit back now. farxiga, along with diet and exercise,... ...helps lower a1c in adults with type 2 diabetes. and when taken with metformin xr, it may lower a1c up to 2.1 points. do not take if allergic to farxiga. symptoms of a serious allergic reaction include rash, swelling, difficulty breathi

jonathan vigliotti leads us off tonight from san diego. >> he is going home. >> reporter: the 19-yearitary veteran, medic, and navy seal learned his fate after more than six hours of deliberation by a seven-person military jury. >> we are finally vindicated after being terrorized by the government that my husband fought for two decades of the war on terror. >> reporter: the trial revealed a seal team divided with a dozen witnesses testifying. seven seals, including two who said they saw the act, accused gallagher of repeatedly stabbing an injured teenage isis fighter in the neck and body while other members of the team were treating his wounds in may 2017. he then allegedly posed in front of the corpse as part of a reenlistment ceremony. gallagher's attorney described the trial as a mutiny led by junior seals that didn't like his client's demanding leadership style. the two-week trial was rocked by shocking moments including a stunning admission from a prosecution witness. navy seal kori scott, who said he, and not gallagher, killed the injured isis fighter. "i held my thumb over his

jonathan vigliotti is in los angeles. >> reporter: president trump promised a wave of federal raids, duh so far immigration sources tell cbs news they have been limited to new york city where federal agents were seen knocking on doors. they wouldn't confirm nor deny the reports. >> i won't when we conduct any enforcement operation is the safety and security of our officers conducting the operation and the public. >> in a statement i.c.e. said they prioritized the skpairs removal of unlawfully present aliens who pose a threat to public safety and border security. but many politicians including amy klobuchar questions the president's motives. >> if he really wanted to go after security risks and there are people who are security risks, why would you alert them and say you're doing this on a sunday and do it two weekends in a row. >> reporter: this weekend protest rs took to the streets from chicago to oakland, two of ten cities the president con if you remembered would be targeted. while large scale deportation actions are not uncommon, the week's long build up is. >> i feel scared eve

jonathan vigliotti is outside in the middle of the warmest temperatures this state has ever recorded. >> standing on an alaskan glacier, so warm i can wear a t-shirt. it is going through a heat wave. ahead on "cbs this morning" we'll tell you the warning scientists want to you hear. >> announcer: this portion of "cbs this morning" sponsored by toy story land. let's go places. let's go places. ♪ ♪ ♪ the first ever corolla hybrid. let's go places. when you have diabetes, ♪ dietary choices are crucial to help manage blood sugar, but it can be difficult to find a balanced solution. try great-tasting boost glucose control. the patented blend of protein, fat, and carbs is part of a balanced formula that's clinically shown to help manage blood sugar levels. in fact, it provides 60% more protein than the leading diabetes nutrition shake and contains only 1 carb choice. enjoy the balanced nutrition of boost glucose control as part of a healthy diet. (mom) (woman) so you have i do.ars experience. (mom) but no phd. (woman) i do have a master's in early childhood development. (mom) you don't mind

jonathan vigliotti shows us how it started with a man in a joker mask, leading police on a wild chaseended with him playing in the sand. >> reporter: he may have just been clowning around, but california highway patrol wasn't laughing as dozens of officers trailed this slow-moving bmw sputtering through traffic. at times the suspect disguised in a clown mask and green wig poked out through the sunroof, letting his passenger steer the way. people on social media wondered if it was a music video or performing art, but please called it reckless driving. the dangerous game of cat and mouse began in orange county after the driver refused to pull over lasting less than an hour. the driver abandoned his car at venice beach and was found walking on the beach. if his hope was to blend in with the crowd it didn't work as people surrounded him. he found his own place to sit in the sun. police were close behind and threatened to tase him before eventually taking him into custody, mask off, handcuffs on, the fun and games were over. the driver's motivation remains unclear. he has been arrested. as

jonathan vigliotti is there. >> reporter: dana, we're here near the byron glacier where it's so warm can walk around in shorts and a polo. the state of alaska is heating up at a rate twice as fast as the rest of the planet, and if you don't want to believe those numbers, come here to anchorage, where this weekend we saw temperatures about 25 degrees above normal. that is the hottest it has been here in alaska in the state's history. to put that in perspective, it was as hot here on july 4th as it was all the way south on miami beach. scientists say there is no doubt this is climate change. they say the consequences are dangerous. also all this sun reflecting arctic ice in alaska is melting quicker and earlier, and, of course, you can't forget the wild fires. more acreage burned this year than all of last year, and we dana, meteorologists say that the temperatures here will drop back to the 70s, but they warn these alaskan heat wave. could be the new normal. >> jacobson: jonathan, thank you. music legend stevie wonder is taking some time off as he battles kidney disease. wonder told f

here is reported in jonathan vigliotti. >> it is so warm that i could comfortably walk around in shortsand a polo. alaska is heating up at a rate twice as fast as the rest of the planet and if you do not want to believe those numbers, just come here to anchorage, where this weekend, we saw temperatures about 25 degrees above normal. that is the hottest it has been here in the let in alaska, in the state history. to put that in perspective, it was as hot here on july 4, was only south on miami beach. scientist say there is no doubt it is climate change and they say the consequences are dangerous. all of the fun requesting arctic ice in alaska melting quickly and early. and of course, you cannot forget the wildfires. more acres of bread this year than all of last year, and we had six more months to go. meterologist say the temperatures here will drop back into the 70s, but they were molested he was could be the new normal. >> let's get another check of the forecast this morning. struggle her today with onshore flow really kicking in and starting off because of the onshore flow, we are loo

jonathan vigliotti is there. >> reporter: we're near the byron glacier where it's so warm i can comfortably walk around in shorts and a polo. the state of alaska is heating up at a rate twice as fast as the rest of the planet. if you don't want to believe those numbers, just come here to anchorage where this weekend, we saw temperatures about 25 degrees above normal. that is the hottest it has been here in alaska in the state's history. to put that in perspective, it was as hot here on july 4th as it was all the wayists s thereo this is climate change. they say the consequences are dangerous. also all this sun reflecting arctic ice here in alaa melting quicker and earlier. of course, you can't forget the wildfires. more acres have burned this year than all of last year, and we have six more months to go. dana, meteorologists say that the temperatures here will drop ba the 70s, but they warn these alaskan heat waves could be the new normal. >> jonathan, thank you. >>> music legend stevie wonder is taking some time off as he battles kidney disease. wonder told fans in london last night he'll

law enforcement officials tell our jonathan vigliotti they are la fficials tound the clock to get answers the one suspect. but again, this investigation is not over. inve will continue to follow the leads and wherever that may whereve >> ajahi has not yet been formally charged. ly ice have until tomorrow afternoon to do so, or they will or tto release him. >>> women ask for raises just as him. as men but are not getting same at the same rate. we will have new insight on how sightt a bigger paycheck. >>> plus, how a former paper boy ivingving of history from the most ♪ ahead. venus williams is knocked out on wimbledon's first day by a 15-year-old who said she would not be playing tennis without the williams sisters. charlie d'agata is at wimbledon. >> reporter: coco gauff was visibly emotion after defeating her longtime idol. [ cheers ] coming up on "cbs this morning," what she had to say to venus williams after her victory. amazed after beating her long-time idol. what she had to say to venus williams after her victory, coming up. ♪ play it cool and escape heartburn fast with new tums che