For years, geoengineering research focused on the ability of what element—spewed naturally into the atmosphere by volcanoes—to reflect the sun’s rays back into space?

\nShow Hint\n

Its atomic symbol is S.

\n\nQuestion 0\n\nAnswer\n\nSubmit\nQuestion 2\n\n

Find previous questions here, and to get Atlantic Trivia in your inbox every day, sign up for The Atlantic Daily. If you think up a question yourself, send it my way via trivia@theatlantic.com.

\n\n

About the Author

Drew Goins

\nFollow\n

Drew Goins is a senior editor focused on trivia and other creative projects. Before joining The Atlantic in 2025, Drew was a newsletter writer and editor for The Washington Post’s Opinions section. He is a 12-game player on the quiz show Jeopardy.

\n\nExplore More Topics\n

environment

","freeContentEncoded","textContent","published","strategy","curl-ready","locked","deletedAt","isSyncedFromOwnBlog","original","duplicatesCount",0,"duplicateVersion","originalArticleId","errorsCount","appearance","color","backgroundColor","shortSummary","This trivia question asks about a specific element used in geoengineering research to reflect sunlight, similar to volcanic emissions. It also provides author information and ways to engage with The Atlantic.","summary","Geoengineering research has long explored the potential of a specific element, naturally released by volcanoes, to reflect solar radiation back into space. The atomic symbol for this element is S. This trivia question is part of a series from The Atlantic, with information on how to find past questions and subscribe to their daily newsletter.","bullets",[362,363,364,365,366],"persons",[361],"places",[360],"words",140,"sentiment","subject","tech","meta",{"_322":323,"_324":325,"_326":327},"eventId","5582bb1b2551d034b64fd0563261750b0616cdca483c320d43dbaf2322587b2c","nostrRootEvent","event",{"_24":257,"_286":310,"_136":94,"_184":311,"_290":291,"_218":312,"_293":313},"authorNPub","markdown","For years, geoengineering research focused on the ability of **what element**—spewed naturally into the atmosphere by volcanoes—to reflect the sun’s rays back into space?\n\nShow Hint\n\nIts atomic symbol is _S_.\n\nQuestion 0 Answer Submit Question 2\n\n_Find previous questions here_, and to get _Atlantic_ Trivia in your inbox every day, _sign up for The_ Atlantic _Daily_. If you think up a question yourself, send it my way via _trivia@theatlantic.com_.\n\n### About the Author\n\n![](https://cdn.theatlantic.com/thumbor/OrOcG85JffxxB8K59qmofMqSieA=/45x45:827x827/120x120/media/img/authors/2025/09/Untitled/original.jpg)\n\n[Drew Goins](https://www.theatlantic.com/author/drew-goins/)\n\nFollow\n\n[Drew Goins](https://www.theatlantic.com/author/drew-goins/) is a senior editor focused on trivia and other creative projects. Before joining _The Atlantic_ in 2025, Drew was a newsletter writer and editor for _The Washington Post_’s Opinions section. He is a 12-game player on the quiz show _Jeopardy._\n\nExplore More Topics\n\n[environment](https://www.theatlantic.com/tag/general/environment/)","freeMarkdown","kind1EventId","kind30023EventId","9704a79e578ab19b5b64400250d5dac82739f234c960fbd3a81684d2aeb31d20","kind30023",{"_24":267,"_286":287,"_136":288,"_184":289,"_290":291,"_218":292,"_293":294},"publishedToNostr","htmlContentKind30023","

For years, geoengineering research focused on the ability of what element—spewed naturally into the atmosphere by volcanoes—to reflect the sun’s rays back into space?

Show Hint

Its atomic symbol is S.

Question 0 Answer Submit Question 2

About the Author

$\"\"$

Drew Goins

Explore More Topics

environment

","pubDate",["D",1780398000000],"modifiedAt",["D",1780398056000],["D",1780462012883],["D",1780462274218],"storyId","likes","zaps","comments","reposts","tweets",[],"sig","9ed3d0885f040ac3e92f772f3433be21f7b3d997b5e776470933bde8d9fe964c8327420ce44612de3a45691b0d276177002ae662251c73e5bdd138bf5d13e301",30023,[295,296,297,298,299,300,301,302],"pubkey","8b6f9b2d00bd0e6da2071a3becfe6d1c7d249146f008372df933d2543dddb741","Atlantic Trivia: Opera and the Atmosphere\nGeoengineering research has long explored the potential of a specific element, naturally released by volcanoes, to reflect solar radiation back into space. The atomic symbol for this element is S. This trivia question is part of a series from The Atlantic, with information on how to find past questions and subscribe to their daily newsletter.\n - Geoengineering research has focused on an element that reflects sunlight.\n - This element is naturally released into the atmosphere by volcanoes.\n - The atomic symbol for this element is S.\n - The question is part of Atlantic Trivia.\n - Information is provided on accessing previous questions and subscribing to The Atlantic Daily.\n","created_at",1780398000,[308,309],[37,204],[306,307],[41,211],[305,199],[241,205],[303,304],[140,291,36],"client","Layer3.press","d","published_at","1780398000","r","https://news.layer3.press/articles/f3992b82-39ab-447d-b2cb-56542a6b7502","ddc492dd31e0c25f244947bffe548be829cb7ae3c99d7169673ea6fbe5d6055573b873cacee68783bbf2c4f84997c8d75113f3f124e6024c90c634d21a5c9232",[314,315,316,317,318],"Atlantic Trivia: Opera and the Atmosphere\nTest your knowledge—and read our stories for a little extra help.\n\n\nnostr:naddr1qvzqqqr4gupzpzm0nvksp0gwdk3qwx3manlx68rayjg5duqgxukljv7j2s7amd6pqqjxvvee8yexywpj95enjctz956rgdmy943rycmz956nvdf5xfsnvc3hx5cryc7qgs0 ",1780462012,[252,204],[41,211],[319,320,36,321],[303,304],[140,291,36],"a","30023:8b6f9b2d00bd0e6da2071a3becfe6d1c7d249146f008372df933d2543dddb741:f3992b82-39ab-447d-b2cb-56542a6b7502","mention","type","bee:get-index-of-articles","schedule",{"_24":328,"_48":-5,"_329":330,"_184":-5,"_331":332,"_333":94,"_334":327,"_335":12,"_138":90,"_252":36,"_336":-5,"_337":-5,"_338":-5,"_339":90,"_225":226,"_340":341,"_50":342,"_343":344,"_345":12,"_346":347,"_52":348,"_349":-5,"_350":90,"_186":153,"_351":352,"_353":-5,"_354":355,"_356":-5,"_357":94,"_358":-5,"_359":-5},"dataSourceUrl","https://www.theatlantic.com/world/","e3d35f69-ea7f-42b4-bf9b-7b5139cb0abc","npub","npub13dhektgqh58xmgs8rga7elndr37jfy2x7qyrwt0ex0f9g0wakaqsy5ukzz","jobId","edb42262-91a7-4ce0-b10f-b9f568e68d88","order","rssUrl","system","userRef","xHandle","xUserId","autosign","syncedAt",["D",1765826967600],["D",1765826967600],"frequency","daily","isOwnBlog","nextRunAt",["D",1780461858973],["D",1780375459811],"xUserName","autopublish","sourceVariant","rss","systemVariant","scheduleVariant","scraping-bee-classic-proxy","retryArticlesIds","frequencyMultiplier","xUserProfilePicture","ownershipConfirmedAt","The Washington Post","Drew Goins","Geoengineering research has focused on an element that reflects sunlight.","This element is naturally released into the atmosphere by volcanoes.","The atomic symbol for this element is S.","The question is part of Atlantic Trivia.","Information is provided on accessing previous questions and subscribing to The Atlantic Daily.","userSubscription","theme","light","currentUser","currentUserVersion2","currentPath","/articles/f3992b82-39ab-447d-b2cb-56542a6b7502","customDomain","defaultLocale",[147,148,149,150,151,152],"domainPrimaryAccentColor","relays",[516,517,518,519,520,521,522,523,524,516],"plans",[503],[153,154],"isDomainOwner","userInterfaceLanguage","session",{"_181":-5,"_499":12,"_500":501,"_75":376},"locale","sessionNpub","sessionPublicKey","hostname","news.layer3.press","syndicated",{"_24":80,"_394":395,"_396":397,"_398":90},"name","nos.news","list",[399,400,401,402,403],"isActive",{"_404":14,"_406":482,"_408":483,"_168":34,"_411":484,"_387":485},{"_404":464,"_406":465,"_408":466,"_168":467,"_411":464,"_387":468},{"_404":447,"_406":448,"_408":449,"_168":450,"_411":148,"_387":451},{"_404":428,"_406":429,"_408":430,"_168":431,"_411":149,"_387":432},{"_404":405,"_406":407,"_408":409,"_168":410,"_411":412,"_387":413},"key","brazil","host","https://resumosbrasil.com/","defaultName","Brazil","https://pub-238dbe5dbaad42f89540a272cca1ecac.r2.dev/1f7ac662a0625073856a04106461b1dbe951e3f640b69994a82761073dc39f2c.png","countryCode","br",{"_149":414,"_74":415,"_147":416,"_148":417,"_151":418,"_150":419,"_152":420,"_421":422},{"_394":427},{"_394":409},{"_394":424},{"_394":426},{"_394":425},{"_394":424},{"_394":423},"en-GB",{"_394":409},"Бразилия","Brasil","Brasile","Brésil","Brasilien","germany","https://germany.nos.news/","Germany","https://pub-238dbe5dbaad42f89540a272cca1ecac.r2.dev/9ead1bc194a3a01035de7f65160c91b32604d2c788b35a914543c34ef451cd3a.png",{"_149":433,"_74":434,"_147":435,"_148":436,"_151":437,"_150":438,"_152":439,"_421":440},{"_394":446},{"_394":430},{"_394":445},{"_394":444},{"_394":443},{"_394":442},{"_394":441},{"_394":430},"Германия","Alemanha","Germania","Allemagne","Alemania","Deutschland","france","https://france.nos.news/","France","https://pub-238dbe5dbaad42f89540a272cca1ecac.r2.dev/0d075f82e2b4f4fa762101ae95488a425d2df9f40c5b7e120954509c635879bf.png",{"_149":452,"_74":453,"_147":454,"_148":455,"_151":456,"_150":457,"_152":458,"_421":459},{"_394":463},{"_394":449},{"_394":462},{"_394":449},{"_394":462},{"_394":461},{"_394":460},{"_394":449},"Франция","França","Francia","Frankreich","uk","https://uk.nos.news/","United Kingdom","https://pub-238dbe5dbaad42f89540a272cca1ecac.r2.dev/16d2af8dfe6bff63fd76dc7434e09f1c98de85b1aa8d35ab98b473bae3c1f97d.png",{"_149":469,"_74":470,"_147":471,"_148":472,"_151":473,"_150":474,"_152":475,"_421":476},{"_394":481},{"_394":466},{"_394":478},{"_394":480},{"_394":479},{"_394":478},{"_394":477},{"_394":466},"Великобритания","Reino Unido","Regno Unito","Royaume-Uni","Vereinigtes Königreich","https://us.nos.news/","United States","us",{"_149":486,"_74":487,"_147":488,"_148":489,"_151":490,"_150":491,"_152":492,"_421":493},{"_394":498},{"_394":483},{"_394":495},{"_394":497},{"_394":496},{"_394":495},{"_394":494},{"_394":483},"Соединённые Штаты","Estados Unidos","Stati Uniti","États-Unis","Vereinigte Staaten","isAdmin","rights",{"_502":12},"owner",{"_24":504,"_394":505,"_39":506,"_507":508,"_509":510,"_511":512,"_513":232,"_398":90,"_50":514,"_52":515},"aa350e4b-615d-4e49-ac7d-9832ef82b0a9","Basic plan","Stay informed with essential updates delivered straight to your inbox.","price","0.00","currency","USD","billingInterval","monthly","trialDays",["D",1765466430811],["D",1765466430811],"wss://articles.layer3.news","wss://relaypag.es","wss://nostr-01.yakihonne.com","wss://purplepag.es","wss://nos.lol","wss://relay.primal.net","wss://relay.damus.io","wss://relay.nostr.net","wss://relay.damus.io/"]