{"id":2832,"date":"2021-02-20T23:58:41","date_gmt":"2021-02-20T23:58:41","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=2832"},"modified":"2021-02-20T23:58:41","modified_gmt":"2021-02-20T23:58:41","slug":"carbon-dioxide-levels-surpass-critical-milestone","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/climate-science\/carbon-dioxide-levels-surpass-critical-milestone\/","title":{"rendered":"N\u1ed3ng \u0111\u1ed9 CO2 c\u1ee7a Tr\u00e1i \u0111\u1ea5t v\u01b0\u1ee3t m\u1ed1c t\u1edbi h\u1ea1n: L\u1eddi c\u1ea3nh t\u1ec9nh v\u1ec1 t\u00ednh c\u1ea5p b\u00e1ch c\u1ee7a h\u00e0nh \u0111\u1ed9ng ch\u1ed1ng bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu"},"content":{"rendered":"<h2 class=\"wp-block-heading\">M\u1ee9c carbon dioxide c\u1ee7a Tr\u00e1i \u0111\u1ea5t v\u01b0\u1ee3t m\u1ed1c t\u1edbi h\u1ea1n<\/h2>\n\n<h2 class=\"wp-block-heading\">C\u00e1c ph\u00e9p \u0111o t\u1eeb \u0110\u00e0i quan s\u00e1t Mauna Loa x\u00e1c \u0111\u1ecbnh \u0110i\u1ec3m t\u1edbi h\u1ea1n<\/h2>\n\n<p>Tr\u00ean \u0111\u1ec9nh n\u00fai l\u1eeda Mauna Loa c\u1ee7a Hawaii, \u0110\u00e0i quan s\u00e1t Mauna Loa s\u1eebng s\u1eefng nh\u01b0 m\u1ed9t v\u1ec7 binh, \u00e1nh nh\u00ecn h\u01b0\u1edbng v\u1ec1 b\u1ea7u tr\u1eddi. Nhi\u1ec7m v\u1ee5 c\u1ee7a \u0111\u00e0i l\u00e0 theo d\u00f5i c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00ed quy\u1ec3n v\u00e0 g\u1ea7n \u0111\u00e2y, c\u00e1c ph\u00e9p \u0111o c\u1ee7a \u0111\u00e0i \u0111\u00e3 ti\u1ebft l\u1ed9 m\u1ed9t s\u1ef1 th\u1eadt \u0111\u00e1ng bu\u1ed3n: n\u1ed3ng \u0111\u1ed9 carbon dioxide (CO2) c\u1ee7a Tr\u00e1i \u0111\u1ea5t \u0111\u00e3 v\u01b0\u1ee3t qua ng\u01b0\u1ee1ng t\u1edbi h\u1ea1n.<\/p>\n\n<h2 class=\"wp-block-heading\">Vai tr\u00f2 c\u1ee7a El Ni\u00f1o trong s\u1ef1 gia t\u0103ng CO2<\/h2>\n\n<p>Th\u1ee7 ph\u1ea1m \u0111\u1eb1ng sau s\u1ef1 gia t\u0103ng n\u00e0y l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng El Ni\u00f1o g\u1ea7n \u0111\u00e2y. Hi\u1ec7n t\u01b0\u1ee3ng th\u1eddi ti\u1ebft n\u00e0y l\u00e0m \u1ea5m c\u00e1c v\u00f9ng n\u01b0\u1edbc \u0111\u1ea1i d\u01b0\u01a1ng g\u1ea7n X\u00edch \u0111\u1ea1o, d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng b\u1ed1c h\u01a1i nhi\u1ec1u h\u01a1n v\u00e0 \u0111i\u1ec1u ki\u1ec7n kh\u00f4 h\u1ea1n h\u01a1n \u1edf c\u00e1c v\u00f9ng nhi\u1ec7t \u0111\u1edbi. Khi th\u1ea3m th\u1ef1c v\u1eadt h\u00e9o \u00faa v\u00e0 ch\u00e1y, m\u1ed9t l\u01b0\u1ee3ng l\u1edbn CO2 \u0111\u01b0\u1ee3c th\u1ea3i v\u00e0o kh\u00ed quy\u1ec3n.<\/p>\n\n<h2 class=\"wp-block-heading\">S\u1ef1 gia t\u0103ng ph\u00e1 k\u1ef7 l\u1ee5c<\/h2>\n\n<p>N\u0103m 2015, \u0110\u00e0i quan s\u00e1t Mauna Loa ghi nh\u1eadn m\u1ee9c t\u0103ng CO2 l\u1edbn nh\u1ea5t theo t\u1eebng n\u0103m k\u1ec3 t\u1eeb khi b\u1eaft \u0111\u1ea7u c\u00e1c ph\u00e9p \u0111o. N\u1ed3ng \u0111\u1ed9 kh\u00f4ng ch\u1ec9 v\u01b0\u1ee3t qu\u00e1 2 ppm trong n\u0103m th\u1ee9 t\u01b0 li\u00ean ti\u1ebfp m\u00e0 c\u00f2n t\u0103ng v\u1ecdt l\u00ean m\u1ee9c 402,59 ppm ch\u01b0a t\u1eebng c\u00f3.<\/p>\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec3m kh\u00f4ng th\u1ec3 quay \u0111\u1ea7u<\/h2>\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 khoa h\u1ecdc, m\u1ed1c son n\u00e0y \u0111\u00e1nh d\u1ea5u m\u1ed9t &#8220;\u0111i\u1ec3m kh\u00f4ng th\u1ec3 quay \u0111\u1ea7u&#8221;. \u0110\u00e2y l\u00e0 \u0111i\u1ec3m t\u1edbi h\u1ea1n m\u00e0 h\u01a1n n\u1eefa s\u1ebd x\u1ea3y ra t\u00ecnh tr\u1ea1ng \u1ea5m l\u00ean \u0111\u00e1ng k\u1ec3, ngay c\u1ea3 khi con ng\u01b0\u1eddi c\u1ed1 g\u1eafng gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i carbon dioxide.<\/p>\n\n<h2 class=\"wp-block-heading\">N\u1ed3ng \u0111\u1ed9 CO2 s\u1ebd ti\u1ebfp t\u1ee5c \u1edf m\u1ee9c cao<\/h2>\n\n<p>C\u00e1c m\u00f4 h\u00ecnh do c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u00e0i quan s\u00e1t Mauna Loa ph\u00e1t tri\u1ec3n d\u1ef1 \u0111o\u00e1n r\u1eb1ng n\u1ed3ng \u0111\u1ed9 CO2 s\u1ebd kh\u00f4ng bao gi\u1edd gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi 400 ppm n\u1eefa. H\u01a1n n\u1eefa, c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi \u0111ang di\u1ec5n ra, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u00e1 r\u1eebng v\u00e0 \u0111\u1ed1t nhi\u00ean li\u1ec7u h\u00f3a th\u1ea1ch, s\u1ebd ti\u1ebfp t\u1ee5c th\u00fac \u0111\u1ea9y n\u1ed3ng \u0111\u1ed9 CO2 t\u0103ng cao h\u01a1n n\u1eefa, \u0111\u1ea1t m\u1ee9c \u01b0\u1edbc t\u00ednh 3,15 ppm m\u1ed7i n\u0103m.<\/p>\n\n<h2 class=\"wp-block-heading\">T\u00ednh t\u1ea5t y\u1ebfu c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu<\/h2>\n\n<p>&#8220;B\u1ea5t k\u1ec3 l\u01b0\u1ee3ng kh\u00ed th\u1ea3i c\u1ee7a th\u1ebf gi\u1edbi hi\u1ec7n nay l\u00e0 bao nhi\u00eau, ch\u00fang ta c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm t\u1ed1c \u0111\u1ed9 gia t\u0103ng nh\u01b0ng kh\u00f4ng th\u1ec3 l\u00e0m gi\u1ea3m n\u1ed3ng \u0111\u1ed9&#8221;, nh\u00e0 khoa h\u1ecdc v\u1ec1 kh\u00ed quy\u1ec3n David Etheridge cho bi\u1ebft. M\u1eb7c d\u00f9 kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c qu\u00e1 tr\u00ecnh gia t\u0103ng n\u1ed3ng \u0111\u1ed9 CO2, con ng\u01b0\u1eddi v\u1eabn c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3.<\/p>\n\n<h2 class=\"wp-block-heading\">Ki\u1ec1m ch\u1ebf s\u1ef1 gia t\u0103ng<\/h2>\n\n<p>Gi\u1ea3m ph\u00e1t th\u1ea3i kh\u00ed nh\u00e0 k\u00ednh l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 l\u00e0m ch\u1eadm t\u1ed1c \u0111\u1ed9 gia t\u0103ng c\u1ee7a n\u1ed3ng \u0111\u1ed9 CO2. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00f4ng qua c\u00e1c bi\u1ec7n ph\u00e1p nh\u01b0 t\u0103ng c\u01b0\u1eddng s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o, c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 th\u00fac \u0111\u1ea9y c\u00e1c ho\u1ea1t \u0111\u1ed9ng s\u1eed d\u1ee5ng \u0111\u1ea5t b\u1ec1n v\u1eefng.<\/p>\n\n<h2 class=\"wp-block-heading\">Chu\u1ea9n b\u1ecb \u1ee9ng ph\u00f3 v\u1edbi c\u00e1c t\u00e1c \u0111\u1ed9ng<\/h2>\n\n<p>Khi n\u1ed3ng \u0111\u1ed9 CO2 ti\u1ebfp t\u1ee5c gia t\u0103ng, b\u1ea7u kh\u00ed quy\u1ec3n c\u1ee7a Tr\u00e1i \u0111\u1ea5t s\u1ebd tr\u1ea3i qua nh\u1eefng thay \u0111\u1ed5i s\u00e2u s\u1eafc. Nh\u1eefng thay \u0111\u1ed5i n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn m\u1ed9t lo\u1ea1t c\u00e1c t\u00e1c \u0111\u1ed9ng, bao g\u1ed3m m\u1ef1c n\u01b0\u1edbc bi\u1ec3n d\u00e2ng, c\u00e1c \u0111\u1ee3t n\u1eafng n\u00f3ng th\u01b0\u1eddng xuy\u00ean v\u00e0 d\u1eef d\u1ed9i h\u01a1n, v\u00e0 l\u00e0m thay \u0111\u1ed5i c\u00e1c ki\u1ec3u m\u1eabu l\u01b0\u1ee3ng m\u01b0a.<\/p>\n\n<h2 class=\"wp-block-heading\">L\u1eddi k\u00eau g\u1ecdi h\u00e0nh \u0111\u1ed9ng<\/h2>\n\n<p>Vi\u1ec7c v\u01b0\u1ee3t ng\u01b0\u1ee1ng 400 ppm CO2 l\u00e0 m\u1ed9t l\u1eddi nh\u1eafc nh\u1edf r\u00f5 r\u00e0ng v\u1ec1 t\u00ednh c\u1ea5p b\u00e1ch c\u1ee7a h\u00e0nh \u0111\u1ed9ng ch\u1ed1ng bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu. \u0110\u00f3 l\u00e0 l\u1eddi k\u00eau g\u1ecdi gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i carbon c\u1ee7a ch\u00fang ta, \u0111\u1ea7u t\u01b0 v\u00e0o n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 th\u00edch \u1ee9ng v\u1edbi t\u00ecnh h\u00ecnh kh\u00ed h\u1eadu \u0111ang thay \u0111\u1ed5i m\u00e0 ch\u00fang ta \u0111ang ph\u1ea3i \u0111\u1ed1i m\u1eb7t. Ch\u1ec9 th\u00f4ng qua h\u00e0nh \u0111\u1ed9ng t\u1eadp th\u1ec3, ch\u00fang ta m\u1edbi c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u nh\u1eefng t\u00e1c \u0111\u1ed9ng t\u1ed3i t\u1ec7 nh\u1ea5t c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu v\u00e0 \u0111\u1ea3m b\u1ea3o m\u1ed9t t\u01b0\u01a1ng lai b\u1ec1n v\u1eefng cho c\u00e1c th\u1ebf h\u1ec7 mai sau.<\/p>\n\n<h2 class=\"wp-block-heading\">C\u00e1c t\u1eeb kh\u00f3a ph\u1ee5 d\u00e0i:<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>H\u1eadu qu\u1ea3 l\u00e2u d\u00e0i c\u1ee7a n\u1ed3ng \u0111\u1ed9 CO2 t\u0103ng cao<\/li>\n<li>T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c gi\u1ea3m thi\u1ec3u bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu<\/li>\n<li>C\u00e1c chi\u1ebfn l\u01b0\u1ee3c th\u00edch \u1ee9ng cho kh\u00ed h\u1eadu \u0111ang thay \u0111\u1ed5i<\/li>\n<li>Vai tr\u00f2 c\u1ee7a n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o trong vi\u1ec7c gi\u1ea3m ph\u00e1t th\u1ea3i<\/li>\n<li>C\u00e1c ho\u1ea1t \u0111\u1ed9ng s\u1eed d\u1ee5ng \u0111\u1ea5t b\u1ec1n v\u1eefng gi\u00fap h\u1ea5p th\u1ee5 CO2<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>M\u1ee9c carbon dioxide c\u1ee7a Tr\u00e1i \u0111\u1ea5t v\u01b0\u1ee3t m\u1ed1c t\u1edbi h\u1ea1n C\u00e1c ph\u00e9p \u0111o t\u1eeb \u0110\u00e0i quan s\u00e1t Mauna Loa x\u00e1c \u0111\u1ecbnh \u0110i\u1ec3m t\u1edbi h\u1ea1n Tr\u00ean \u0111\u1ec9nh n\u00fai l\u1eeda Mauna Loa&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[284],"tags":[34,775,291,283,120,569],"class_list":["post-2832","post","type-post","status-publish","format-standard","hentry","category-climate-science","tag-climate-change","tag-carbon-dioxide","tag-greenhouse-gases","tag-environment","tag-sustainability","tag-global-warming"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=2832"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2832\/revisions"}],"predecessor-version":[{"id":2833,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/2832\/revisions\/2833"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=2832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=2832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=2832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}