all to see if this population is dwindling like elsewhere in the region. the researchers are traveling on greenpeace ships from island-to-island, across the antarctic peninsula. they're comparing different penguin populations to seeing how they're adapting to climate change here. it may not look like it, but this is one of the fastest e actuay penguin island. over the past four decades its chin strap population has plunged by 75%. the numbers have dropped across the region, as temperatures have soared by more than five degree global average. >> when we see climate change impacting things down here, glacial melt, warming oceans, more acidic oceans, penguins do interact with all of those things. >> so do krill, chintraps'

favorite food. >> sea ice is what brings the ocean life together. >> reporter: with less sea ice, there's less krill and less food for the chinstrap penguins? >> that's the idea. >> reporter: after days of counting chinstraps on elephant island, the scientists invited us on their ship to watch them crunch numbers from one nesting site. >> they have lost 50% since the early teens. >> wow. >> that's amazing. >> reporter: that's the pattern the r. ecline of about 150,000 chinstraps since the last major survey 50 years ago. another sign the researchers say, the penguin population is collapsing across the region. >> it's very dramatic to have a wildlife population decline by 50%. they're not hunted. >> reporter: and you think

climate change is the main reason behind it? >> i think climate change is driving almost all of the processes down here in a way they never did before. >> reporter: penguins are they need food and a good environment to thrive. the researchers say if the world continues to warm, these birds can show us how other species, even human beings, will be affected by climbate change. climate change is also taki t reindeer herds at the north pole. >> reporter: good morning from northern finland, about 300 miles north of the arctic ver there. this isn't about santa ho, ho, ho reindeer. this reindeer story is no laughing matter. it's more than 1,000 miles from up here in the high arctic of finland to the north pole, as the reindeer flies. but that hasn't stopped the

finns from naming thissa hometown, where rudolph's cousins provide sleigh rides, albeit on the ground. and where you know who welcomes children of all ages. but all is not what it seems in this winter wonderland. so, rudolph here, real name guillermo, is a healthy young reindeer. but thousands of others are in real trouble. to find the real reindeer and the real trouble, you've got to go about 250 miles north of santa's village and then drive a snowmobile another 30 or so miles across rough, open tundra, in temperatures approaching zero. but winter, even up here, isn't what it used to be. our guide is from the ancient sami people who have been herding reindeer since the dawn of time. and the climate here in lapland,

he says, is changing. >> if it's warm weather, then snow going to be -- >> reporter: it melts? >> it melts. and next day, freezes. >> reporter: does it happen more off now when you have rain or warm weather and then the snow melts? does that happen more in the last few years? >> yeah. the last ten years. >> reporter: and this is the result. reindeer are dying. a big die-off was discovered on the arctic islands last summer. and the huge wild herds of caribou, which roam across alaska and northern canada, have been reduced by half, according to a recent governmreport. >> they dig down through the snow. >> reporter: and the reindeer herder knows why. >> this is what they're looking for. >> reporter: the reindeer feed through the winter on liken, a mossy plant they dig through to

get with. except when all of the thawing and refreezing, means they can't. when the snow turns to ice, what happens? >> we have to feed them. >> reporter: they can't dig for the food? >> no. we have to give them extra food. >>epter:pe in thed of the northern lights, it's a constant battle. he lives in a village of ten houses, five families, no power, no running water. the most remote village in finland, he says, which is saying something. and every day, he travels up 60 miles each way, through the few hours of dim winter light, to find the herd and check it's okay. how many reindeer do you herd? how many do you have? >> i have some reindeers. but it's the same thing if i ask you, how much you have money in the bank. >> reporter: to you, the reindeer are money in the bank? >> the reindeer is my whole.

>> reporter: whatever you're worth? >> my whole worth. >> reporter: they run about 5,000 animals. and right now, it's reindeer roundup time. ante and his wonder dog, benna, drive the herd south where they can give them feed. and where a few are sold to the reindeer meat market. it's a gorgeous fridged dance of animal, man and machine. it's hard work. >> it is hard work. >> reporter: why don't you leave and go work in the city? >> this is my life. >> reporter: the reindeer in finland are the lucky ones. they have the sami herders to look after them. for tens here's a simple true-or-false quiz for you. if you're between age 50 and 85, it's important for you to know the truth, so please listen closely.

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(mom) nooooo... (son) nooooo... (avo) qu and is 2x more absorbent. bounty, the quicker picker upper. you've probably been singing their tunes for most of your life. the songwriters hall of fame announced its 2020 inductees. anthony mason reports. ♪ >> reporter: she has more number one hits than any other solo artist. 19. ♪ we belong togetherasf 20 induo the wrosongwriters' hall of fam. mariah is known for her stunning

five-octave range. e also co-wrote most of her hits, including this one -- ♪ all i want for >> reporter: which hit number one just last month. the isley brothers broke in back in 1959, with "shout." o'kelley, rudolph and ronald isley would write "it's your thing." ♪ it's your thing do what you wanna do ♪ >> reporter: younger brothers, marvin and kenny, and chris joined. and the isley brothers scored hits across five decades are now in the hall. te formedhe e to y eurythmics in london in 1980. their music has proved as

influential as their style. the eurythmics are new members of the hall earth ♪ >> reporter: this number one hit for belinda carlisle was co-written by rick knowles, who also wrote "white flag" by dido. ♪ there will be no white flag above my door ♪ >> reporter: and a number of hits with norma delray. rick nowles is now in the hall. pharrell williams, and chad hugo, professionally known as the neptunes, are among the most successful producers of all-time. co-writing hits for nelly. ♪ i'm a slave for you d so quick to walk away ♪ >> reporter: the neptunes have

been inducted into the hall of fame. the smash "dancing in the street," was co-written by william mickey stevenson. he also co-wrote "it takes two" for marvin gaye and kim weston, who he later married. and this song became a big hit for mitch rider and the detroit wheels. mickey stevenson is now a hall of famer. ♪ come people call me the space cowboy, yeah ♪ ♪ some call me the gangster of love ♪ >> reporter: but he's best known as steve miller, the blues guitarist and brilliant songwriter, who had a run of huge hits in the '70s and early '80s. css wl bed74-197 has

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climate change isn't only taking a toll on animals. it's also threatening the grapes that make your favorite wine. the california wine industry is fighting back. jamie yuccas has this story from napa valley. >> while a red wine should be aged in barrels, these cabernet grapes are dying on the vine. andy has been growing grapes for some of the biggest names in california wine country sinc 70s. how much cab do you drink a day? >> breakfast, lunch or dinner? >> reporter: but he's concerned about his harvest. >> we have bugs we never heard of. we have diseases we fore. beusoft. the w w

>> reporter: you're fighting against climate change. >> yes. >> reporter: here in napa valley, cab is king. it's also why researchers are trying to save it, with 11 different projects all over the area. you want to keep the wine quality? >> that's right. we want to keep it delicious and cost worthy of that $300 bottle. >> reporter: they are investing tens of millions of dollars, partnering with u.c. davis, for the worth's most ambitious cabernet root stock and vin trial. the area has heated up by nearly two degrees a year. but it's enough to eventually make cabernet grapes extinct. >> we can't say we'll think about it 20 or 30 years from now. you have to take action now. >> reporter: what does it mean to this area that you're doing this research? >> we don't look at this as a

northern california trial or experiment. we look at this as an industry-wide trial. >> reporter: e.c. davis is using shade nets, and switching from horizontal to vertical planning to grow a better, stronger grape. you have naysayers? >> they say we're going too far or spending too much money doing it. >> reporter: researchers are testing 100 combinations. but it will take six years to yield results. ee of america's most famousy to fightfu to improve the wine quality. that's the big deal. >> that was jamie yukccas. that is the news for this friday. for some of you check back later. from the broadcast center in

new york city, i'm nikki battiste. . it's it's friday, january 17h, it's fr 2020.january 17h, this is historic impea trial. the senate trial opens as the trump administration is accused of breaking the law by withholding ai missile attack in iraq last week. weekend wallop. blizzard conditions could bring half a foot of snow as winter weather sweeps across much of the countrpthe countryy cbs