the ones they had to the bbc. that prompted the u.n. to ask dubai for proof that latifa is alive. we raised our concerns about the situation, in light of the disturbing video that emerged this week. reporter: but instead of offering proof of life, the dubai royal family simply issued a statement from the embassy here in london saying that latifa was being cared for by her family with medical support. elizabeth palmer, cbs news, london. duncan: straight ahead on the cbs weekend news, how climate change is threatening the tallest living things on the planet. and later, moving day for one of san francisco s grand old homes. - 15 or more headache days a month, .each lasting 4 hours or more. botox® prevents headaches in adults with chronic migraine. so, if you haven t tried botox® for your chronic migraine, .check with your doctor if botox® is right for you,
reporter: in her 22 years at big basin, joann kerbavaz, the senior scientist there has watched the amount of fog that feeds the redwoods shrink. maintthe redwood forest in this climate. reporter: coastal redwoods are just one of california s troubled trees. in the sierra mountains to the east, wildfire wiped out 350 ancient sequoias. in the mojave desert to the south 1.5 million iconic joshua trees were killed when fire tornadoes swirled across the invasive grass. events like this could not have been occurring all that often over previous millenia. reporter: but now park williams a columbia university climate scientist sees a difference that is spreading. is california the canary in the coal mine? the forest in california are burning more because of climate change about the same as they are across the rest of the
magnificent redwoods. now they re fighting to survive. here s climate specialist and meteorologist jeff berardelli. reporter: california s iconic coastal redwoods, some standing since julius caesar ruled rome, are in a fight for their lives, threatened by extreme wildfires made worse by a warming climatee haven t pronounced it yet. reporter: as a vegetation wreckage left behind by the august fires. it affected the entire tree, right up to the very top. reporter: 14,000 lightning 350 california wildfires. one of them consumed most of the 18,000 acres in the big basin redwood preserve, 50 miles south of san francisco. there are no records of fires that have been that big in this vicinity.
i want to hoist myself up, but my arms, theyjust will not obey. street, straight. straight, straight. i think i am going to rip my pants! this is tough. the numbers of climbers like prasalan have fallen dramatically as the younger generation have gradually moved away from manual jobs. very strong, indeed! it is a bit of a marathon. you need to think of it as a marathon. you have about 20 good metres to climb and if you run out of strength halfway, it will not be pretty. oh, i think that is it for me! pants. how does he do it?! my feet, i tell you, i think it is because i have soft soft everything. i am a wimp. you are much stronger than i am. the coconut industry is worth