{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Cloning giant sequoias to battle climate change' data-url='/boclips/videos/6878f7d868f2517d67876bec' data-video-url='/boclips/videos/6878f7d868f2517d67876bec' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nCloning giant sequoias to battle climate change\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eCalifornia’s Sierra Nevada Mountains host the biggest and oldest sequoia on Earth, some close to 100m tall and up to 3000 years old. A team of about a dozen expert tree climbers volunteered for an expedition, organised by the Archangel...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eCalifornia’s Sierra Nevada Mountains host the biggest and oldest sequoia on Earth, some close to 100m tall and up to 3000 years old.\u003cbr/\u003e\u003cbr/\u003e A team of about a dozen expert tree climbers volunteered for an expedition, organised by the Archangel Ancient Tree Archive, to retrieve genetic samples.\u003cbr/\u003e\u003cbr/\u003e The group believes planting forests of cloned mega trees will help to fight climate change.\u003cbr/\u003e\u003cbr/\u003e  Good job sad that we need this RT YukaYoneda: Archangel Ancient Tree Archive is Cloning \u003ca href='http://t.co/AyLcBh52Ei' target='_blank' rel='nofollow'\u003eTrees\u003c/a\u003e pic.twitter.com/gNrZXyftgF— Scott (CyberScooby_10) September 8, 2014\u003cbr/\u003e\u003cbr/\u003e Tim Smit, is the founder of the Eden Project:“I think the replanting of trees, major trees, around the world is absolutely crucial as one of the constituent parts to mediating the impact of climate change.”\u003cbr/\u003e\u003cbr/\u003e Giant sequoias are huge, not only in height, but boast a girth of up to 7 or 8 m making them ideal for absorbing greenhouse gases, such as carbon dioxide, that drive climate change.\u003cbr/\u003e\u003cbr/\u003e They can live for three thousand years, surviving wildfires, droughts and disease.\u003cbr/\u003e\u003cbr/\u003e The director of the Archangel Ancient Tree Archive is Jacob Milarch:\u003cbr/\u003e“So we feel that maybe there’s something special in those genetics that could help resist the changes of climate change, global warming, things like that. We feel like if it’s lived for 3000 years, maybe their genetics is something special there.”\u003cbr/\u003e\u003cbr/\u003e Climber Jim Clark has been collecting the tips of young branches.\u003cbr/\u003e\u003cbr/\u003e Later the cuttings are delivered to the Archangel’s Michigan laboratory where the samples are planted in nutrient-rich containers: “What we have here are the clippings that we took from the very top of the Sequoia tree. We went out to the very tips of the limbs and harvested this material,” explains Jim Clarke a cloning specialist.\u003cbr/\u003e\u003cbr/\u003e  Archangel Ancient Tree Archive redwoods and sequoia babies headed out west! #hugatree #savethetrees pic.twitter.com/JAoSw7Sr— Meghan Morelli (@MeghanMorelliTV) November 27, 2012\u003cbr/\u003e\u003cbr/\u003e The samples grow beneath purplish fluorescent lights in humidity and temperatures designed to encourage rooting.\u003cbr/\u003e\u003cbr/\u003e Despite the tightly-controlled conditions, most won’t survive.\u003cbr/\u003e\u003cbr/\u003e But the ones that do take root will grow indoors for several years before they’re ready to plant.\u003cbr/\u003e\u003cbr/\u003e Jim Clarke continues:“It’s a biological miracle that this piece of tissue that came from a 3000-year-old tree can be rooted and we have a miniature 3000-year-old tree. The genetics stay true. The genetics don’t change. This little tiny tree will be exactly the same genetically as the mother tree”\u003cbr/\u003e\u003cbr/\u003e One skeptical voice comes from Todd Dawson, a professor of integrated biology at the University of California, Berkeley. \u003cbr/\u003e\u003cbr/\u003e According Dawson it is unclear whether cloning and planting a limited number of trees will cool the warming planet. \u003cbr/\u003e\u003cbr/\u003e He is more in favour of a more direct approach as curbing the use of fossil fuels and protecting vast rainforests:\u003cbr/\u003e“The pace at which the climate is changing right now is faster than any time in past Earth history. And so, we have to be thinking about very rapid solutions. And a slow growing tree may not be able to keep up with the pace at which the Earth is changing right now”\u003cbr/\u003e\u003cbr/\u003e However there is no disagreement over the value of planting and protecting big trees. Moreover, for these arborists doing nothing is not an option.\u003cbr/\u003e\u003cbr/\u003e Later this year the Archangel team will plant up to 1000 sequoia and redwood saplings in a cool, damp region of Oregon (Western US) where the trees will have the best chance to grow.\u003cbr/\u003e\u003cbr/\u003e Archangel says they have already cloned 170 species and planted about 300,000 clones around the world.\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource 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