{"id":23486,"date":"2014-05-22T03:06:41","date_gmt":"2014-05-22T03:06:41","guid":{"rendered":"http:\/\/chanhkien.org\/?p=23486"},"modified":"2025-05-12T10:22:44","modified_gmt":"2025-05-12T03:22:44","slug":"doi-dieu-suy-ngam-ve-lo-hong-tang-ozone","status":"publish","type":"post","link":"https:\/\/chanhkien.org\/2014\/05\/doi-dieu-suy-ngam-ve-lo-hong-tang-ozone.html","title":{"rendered":"\u0110\u00f4i \u0111i\u1ec1u suy ng\u1eabm v\u1ec1 l\u1ed7 h\u1ed5ng t\u1ea7ng Ozone"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter\" title=\"KhoaHocChanChinh\" alt=\"\" src=\"http:\/\/chanhkien.org\/wp-content\/uploads\/2012\/01\/KhoaHocChanChinh.jpg\" width=\"321\" height=\"444\"><\/p>\n<p><b>[Chanhkien.org]<\/b> L&agrave; m&#7897;t h&#7885;c vi&ecirc;n <a href=\"http:\/\/phapluan.org\">Ph&aacute;p Lu&acirc;n &#272;&#7841;i Ph&aacute;p<\/a>, t&ocirc;i &#273;&atilde; bi&#7871;t &#273;&#432;&#7907;c nh&#7919;ng nguy&ecirc;n nh&acirc;n &#273;&#7857;ng sau c&aacute;c s&#7921; ki&#7879;n x&#7843;y ra tr&ecirc;n th&#7871; gi&#7899;i, kh&aacute;c v&#7899;i nh&#7919;ng l&yacute; gi&#7843;i hi&#7879;n &#273;ang &#273;&#432;&#7907;c c&#7897;ng &#273;&#7891;ng khoa h&#7885;c tr&ecirc;n th&#7871; gi&#7899;i ch&#7845;p nh&#7853;n. Ch&#7859;ng h&#7841;n nh&#432; l&#7895; h&#7893;ng tr&ecirc;n t&#7847;ng ozone. Theo hi&#7875;u bi&#7871;t hi&#7879;n nay c&#7911;a c&#7897;ng &#273;&#7891;ng khoa h&#7885;c th&#7871; gi&#7899;i th&igrave; l&#7895; h&#7893;ng n&agrave;y &#273;&#432;&#7907;c g&acirc;y ra b&#7903;i l&#432;&#7907;ng kh&iacute; <i>chlorofluorocarbons<\/i> (CFC) v&#432;&#7907;t qu&aacute; gi&#7899;i h&#7841;n. K&#7871;t lu&#7853;n n&agrave;y d&#7921;a tr&ecirc;n k&#7871;t qu&#7843; nghi&ecirc;n c&#7913;u trong ph&ograve;ng th&iacute; nghi&#7879;m cho th&#7845;y kh&iacute; CFC l&agrave;m suy y&#7871;u ozone. Nh&#7919;ng k&#7871;t lu&#7853;n &#273;&#432;&#7907;c r&uacute;t ra t&#7915; nh&#7919;ng th&iacute; nghi&#7879;m &#273;&#432;&#7907;c ki&#7875;m so&aacute;t g&#7855;t gao n&agrave;y l&#7841;i &#273;&#432;&#7907;c &#273;em ra &aacute;p d&#7909;ng cho b&#7847;u kh&iacute; quy&#7875;n b&#7845;t tr&#7883; v&agrave; nhanh ch&oacute;ng &#273;&#432;&#7907;c c&#7843; th&#7871; gi&#7899;i xem nh&#432; l&agrave; ch&acirc;n l&yacute;. Ch&iacute;nh ph&#7911; c&#7911;a t&#7845;t c&#7843; c&aacute;c n&#432;&#7899;c &#273;&#7873;u chi&#7875;u theo &ldquo;ch&acirc;n l&yacute;&rdquo; n&agrave;y &#273;&#7875; c&ugrave;ng th&#7889;ng nh&#7845;t ng&#7915;ng ho&#7863;c ki&#7875;m so&aacute;t ch&#7863;t ch&#7869; vi&#7879;c th&#7843;i ra kh&iacute; CFC.<\/p>\n<p>Gi&#7901; &#273;&acirc;y, c&aacute;c nh&agrave; nghi&ecirc;n c&#7913;u &#7903; Tasmania &#273;&atilde; ph&aacute;t hi&#7879;n ra r&#7857;ng l&#7895; h&#7893;ng tr&ecirc;n t&#7847;ng ozone &#273;ang thu h&#7865;p l&#7841;i l&#7847;n &#273;&#7847;u ti&ecirc;n k&#7875; t&#7915; khi l&#7895; h&#7893;ng n&agrave;y &#273;&#432;&#7907;c ph&aacute;t hi&#7879;n ra v&agrave;o n&#259;m 1985 (b&aacute;o <i>The Times<\/i> (London) s&#7889; ra ng&agrave;y 12\/4\/2000, t&aacute;c gi&#7843; Henderson) [1].<\/p>\n<p>L&agrave; m&#7897;t h&#7885;c vi&ecirc;n <a class=\"lar-automated-link\" href=\"https:\/\/chanhkien.org\/chu-giai-tu-vung#phap_luan_dai_phap\" 28735 rel=\"nofollow\" target=\"_blank\">Ph&aacute;p Lu&acirc;n &#272;&#7841;i Ph&aacute;p<\/a>, t&ocirc;i r&#7845;t quan t&acirc;m &#273;&#7871;n v&#7845;n &#273;&#7873; n&agrave;y khi nghe S&#432; ph&#7909; L&yacute; gi&#7843;ng Ph&aacute;p &#7903; Los Angeles n&#259;m 1999 nh&#432; sau:<\/p>\n<blockquote>\n<p>[&hellip;] &ldquo;Hi&#7875;u bi&#7871;t c&#7911;a khoa h&#7885;c v&#7873; nhi&#7873;u s&#7921; vi&#7879;c l&agrave; qu&aacute; n&ocirc;ng c&#7841;n; &#273;&#7871;n c&#7843; s&#7921; hi&#7875;u bi&#7871;t c&#7911;a n&oacute; v&#7873; v&#7853;t ch&#7845;t trong kh&ocirc;ng gian t&#7891;n t&#7841;i n&agrave;y c&#361;ng ch&#432;a &#273;&#7847;y &#273;&#7911;. V&igrave; kh&ocirc;ng c&oacute; kh&#7843; n&#259;ng nh&#7853;n th&#7913;c v&#7873; s&#7921; t&#7891;n t&#7841;i c&#7911;a Th&#7847;n n&ecirc;n n&oacute; &#273;&atilde; t&#7921; gi&#7899;i h&#7841;n s&#7921; ph&aacute;t tri&#7875;n c&#7911;a ch&iacute;nh m&igrave;nh. V&iacute; d&#7909;, c&aacute;c khoa h&#7885;c gia th&#7901;i nay cho r&#7857;ng &ocirc; nhi&#7877;m c&ocirc;ng nghi&#7879;p c&#7911;a nh&acirc;n lo&#7841;i l&agrave; kh&aacute; nghi&ecirc;m tr&#7885;ng r&#7891;i, m&#7897;t trong nh&#7919;ng v&iacute; d&#7909; l&agrave; ch&#7845;t Freon [ch&#7845;t l&agrave;m l&#7841;nh] v&agrave; c&aacute;c v&#7853;t ch&#7845;t kh&aacute;c d&ugrave;ng trong dung d&#7883;ch l&agrave;m ngu&#7897;i &#273;&atilde; ph&aacute; h&#7911;y t&#7847;ng ozone. H&#7885; n&oacute;i r&#7857;ng t&#7847;ng ozone &#7903; Nam C&#7921;c b&#7883; thi&#7879;t h&#7841;i, n&#417;i &#7845;y c&oacute; m&#7897;t l&#7895; th&#7911;ng. Th&#7921;c t&#7871; th&igrave;, khoa h&#7885;c kh&ocirc;ng c&oacute; kh&#7843; n&#259;ng nh&#7853;n th&#7913;c vai tr&ograve; c&#7911;a ch&#432; Th&#7847;n, cho n&ecirc;n ng&#432;&#7901;i ta n&oacute;i r&#7857;ng l&#7895; th&#7911;ng &#273;&oacute; l&agrave; do t&#7847;ng ozone b&#7883; h&#7911;y ho&#7841;i. S&#7921; th&#7853;t th&igrave; s&#7921; &ocirc; nhi&#7877;m do n&#7873;n c&ocirc;ng nghi&#7879;p ng&agrave;y nay &#273;&atilde; khi&#7871;n cho b&#7847;u kh&ocirc;ng kh&iacute; c&#7911;a nh&acirc;n lo&#7841;i b&#7883; &ocirc; nhi&#7877;m &#273;&#7871;n m&#7913;c &#273;&#7897; c&#7921;c k&#7923; &#273;&aacute;ng s&#7907;.<\/p>\n<p>Tuy th&#7871; v&ocirc; l&#432;&#7907;ng sinh m&#7879;nh trong c&aacute;c th&#7871; gi&#7899;i vi quan c&#7911;a v&#361; tr&#7909; bao la, kh&ocirc;ng k&#7875; l&agrave; h&#7919;u h&igrave;nh hay v&ocirc; h&igrave;nh, t&#7845;t c&#7843; ch&#432; Th&#7847;n &#273;&#7873;u t&#7891;n t&#7841;i trong c&aacute;c th&#7871; gi&#7899;i vi quan m&agrave; nh&acirc;n lo&#7841;i kh&ocirc;ng th&#7875; nh&igrave;n th&#7845;y &#273;&#432;&#7907;c. Kh&ocirc;ng kh&iacute; l&agrave; do c&aacute;c h&#7841;t ph&acirc;n t&#7917; c&#7845;u th&agrave;nh, trong khi c&aacute;c h&#7841;t ph&acirc;n t&#7917; l&agrave; do c&aacute;c h&#7841;t vi quan h&#417;n n&#7919;a c&#7845;u th&agrave;nh. Trong kh&ocirc;ng kh&iacute; c&oacute; t&#7915;ng l&#7899;p v&ocirc; s&#7889; v&ocirc; k&#7875;, l&#7899;p n&agrave;y &#273;&#7871;n l&#7899;p kh&aacute;c, ti&#7871;n &#273;&#7871;n th&#7871; gi&#7899;i vi quan, v&agrave; t&#7845;t c&#7843; &#273;&#7873;u l&agrave; Th&#7847;n. Khi h&#7885; nh&igrave;n th&#7845;y m&ocirc;i tr&#432;&#7901;ng c&#7911;a con ng&#432;&#7901;i tr&#7903; n&ecirc;n nh&#432; th&#7871;, h&#7885; m&#7903; m&#7897;t c&#7917;a s&#7893;, m&#7903; m&#7897;t c&aacute;nh c&#7917;a, &#273;&#7875; t&#7889;ng kh&#7913; c&aacute;c ch&#7845;t kh&iacute; th&#7843;i t&#7915; trong tr&aacute;i &#273;&#7845;t. &ETH;i&#7873;u n&agrave;y l&agrave; do ch&#432; Th&#7847;n l&agrave;m. H&#7885; c&#7889; &yacute; m&#7903; ra v&agrave; sau &#273;&oacute; &#273;&oacute;ng l&#7841;i. N&#7871;u ch&#432; Th&#7847;n kh&ocirc;ng b&#7843;o h&#7897; nh&acirc;n lo&#7841;i, nh&acirc;n lo&#7841;i s&#7869; kh&ocirc;ng c&ograve;n t&#7891;n t&#7841;i. Con ng&#432;&#7901;i kh&ocirc;ng nh&#7919;ng kh&ocirc;ng tin Th&#7847;n, m&agrave; c&ograve;n b&#7845;t k&iacute;nh v&#7899;i ch&#432; Th&#7847;n. Ch&uacute;ng ta h&atilde;y b&agrave;n v&#7873; m&#7897;t v&iacute; d&#7909; gi&#7843;n d&#7883; nh&#7845;t. Ch&#432; v&#7883; c&oacute; bi&#7871;t r&#7857;ng nh&#7919;ng n&#417;i b&#7883; &ocirc; nhi&#7877;m c&ocirc;ng nghi&#7879;p nghi&ecirc;m tr&#7885;ng nh&#7845;t l&agrave; n&#417;i &#273;&ocirc;ng d&acirc;n c&#432; nh&#7845;t, l&agrave; c&aacute;c &#273;&ocirc; th&#7883;. T&#7841;i sao &#7903; ph&iacute;a tr&ecirc;n c&aacute;c n&#417;i &#273;&oacute; t&#7847;ng ozone kh&ocirc;ng c&oacute; l&#7895; th&#7911;ng? &ETH;&oacute; l&agrave; v&igrave; ch&#432; Th&#7847;n ngh&#297; r&#7857;ng m&#7903; m&#7897;t l&#7895; th&#7911;ng &#7903; v&ugrave;ng Nam C&#7921;c th&igrave; an to&agrave;n cho con ng&#432;&#7901;i. &#272;&aacute;ng l&yacute; ra n&#417;i n&agrave;o c&oacute; nhi&#7873;u kh&iacute; th&#7843;i h&#417;n th&igrave; t&#7847;ng ozone n&#417;i &#273;&oacute; ph&#7843;i c&oacute; m&#7897;t l&#7895; th&#7911;ng, ph&#7843;i v&#7853;y kh&ocirc;ng, nh&#432;ng t&#7841;i sao l&#7841;i kh&ocirc;ng ph&#7843;i nh&#432; th&#7871;?&rdquo; [&hellip;] (b&#7843;n d&#7883;ch ch&#432;a ch&iacute;nh th&#7913;c)<\/p>\n<\/blockquote>\n<p>T&#7841;i &#273;&acirc;y S&#432; ph&#7909; L&yacute; &#273;&atilde; &#273;&#432;a ra quan &#273;i&#7875;m r&#7845;t h&#7907;p l&yacute;. N&#7871;u trong ph&ograve;ng th&iacute; nghi&#7879;m, CFC cho th&#7845;y n&oacute; l&agrave;m suy y&#7871;u ozone ngay khi ti&#7871;p x&uacute;c, ch&#7859;ng ph&#7843;i &#273;i&#7873;u n&agrave;y c&oacute; kh&#7843; n&#259;ng x&#7843;y ra cao nh&#7845;t &#7903; nh&#7919;ng n&#417;i c&oacute; nhi&#7873;u nh&agrave; m&aacute;y, xe h&#417;i v&agrave; m&aacute;y l&#7841;nh, v.v. hay sao? Ch&#7859;ng ph&#7843;i CFC t&#7915; &#273;&oacute; m&agrave; ra? Ch&uacute;ng ta s&#7869; ngh&#297; r&#7857;ng c&aacute;c l&#7895; h&#7893;ng &#7903; t&#7847;ng ozone n&ecirc;n xu&#7845;t hi&#7879;n tr&ecirc;n Los Angeles, New York, Tokyo, Mexico City, Rio, New Delhi, hay Th&#432;&#7907;ng H&#7843;i, nh&#7919;ng n&#417;i t&#7853;p trung d&acirc;n c&#432; &#273;&ocirc;ng &#273;&uacute;c nh&#7845;t. S&#432; ph&#7909; gi&#7843;ng r&#7857;ng &#273;i&#7873;u n&agrave;y &#273;&atilde; kh&ocirc;ng x&#7843;y ra b&#7903;i v&igrave; ch&#432; Th&#7847;n quan t&acirc;m &#273;&#7871;n s&#7913;c kh&#7887;e c&#7911;a con ng&#432;&#7901;i n&ecirc;n &#273;&atilde; m&#7903; b&#7847;u kh&iacute; quy&#7875;n &#7903; nh&#7919;ng n&#417;i xa x&ocirc;i, &#273;&#7875; cho c&aacute;c lo&#7841;i kh&iacute; &#273;&#7897;c h&#7841;i tho&aacute;t ra ngo&agrave;i, v&agrave; h&#7885; s&#7869; &#273;&oacute;ng n&oacute; l&#7841;i khi xong vi&#7879;c.<\/p>\n<p>N&#7871;u &#273;i&#7873;u n&agrave;y l&agrave; ch&acirc;n th&#7853;t, th&igrave; &#273;i&#7873;u khi&#7871;n t&ocirc;i th&#7845;y h&#7913;ng th&uacute; nh&#7845;t ch&iacute;nh l&agrave; vi&#7879;c l&agrave;m c&#7911;a ch&#432; Th&#7847;n di&#7877;n ra song song v&#7899;i nh&#7919;ng h&agrave;nh &#273;&#7897;ng c&#7911;a con ng&#432;&#7901;i &#273;&#7889;i v&#7899;i v&#7845;n &#273;&#7873; n&agrave;y. Th&#7853;t s&#7921; r&#7857;ng c&#7843; th&#7871; gi&#7899;i &#273;&atilde; c&ugrave;ng v&#7853;n &#273;&#7897;ng gi&#7843;m kh&iacute; th&#7843;i CFC, v&agrave; th&#7853;t s&#7921; r&#7857;ng l&#7895; h&#7893;ng t&#7847;ng ozone &#273;ang kh&eacute;p l&#7841;i. Ch&#432; Th&#7847;n h&agrave;nh &#273;&#7897;ng v&agrave; c&oacute; k&#7871;t qu&#7843;. Ch&uacute;ng ta h&agrave;nh &#273;&#7897;ng v&agrave; c&#361;ng c&oacute; k&#7871;t qu&#7843;. Ch&uacute;ng ta nh&igrave;n th&#7845;y k&#7871;t qu&#7843; v&agrave; d&#7877; d&agrave;ng &ldquo;t&igrave;m ra&rdquo; nh&#7919;ng gi&#7843; thuy&#7871;t c&#7911;a ri&ecirc;ng m&igrave;nh &#273;&#7875; l&yacute; gi&#7843;i.<\/p>\n<p>M&#7889;i quan h&#7879; song song gi&#7919;a nh&acirc;n v&agrave; qu&#7843; &#7903; hai kh&ocirc;ng gian ri&ecirc;ng bi&#7879;t nhau c&#361;ng gi&#7889;ng nh&#432; c&aacute;ch b&#7879;nh t&#7853;t th&#7875; hi&#7879;n ra tr&ecirc;n c&#417; th&#7875; ng&#432;&#7901;i. C&aacute;c h&#7885;c vi&ecirc;n <a class=\"lar-automated-link\" href=\"https:\/\/chanhkien.org\/chu-giai-tu-vung#phap_luan_dai_phap\" 28735 rel=\"nofollow\" target=\"_blank\">Ph&aacute;p Lu&acirc;n &#272;&#7841;i Ph&aacute;p<\/a> hi&#7875;u r&#7857;ng b&#7879;nh t&#7853;t l&agrave; h&#7853;u qu&#7843; c&#7911;a vi&#7879;c t&iacute;ch t&#7909; nghi&#7879;p l&#7921;c, nh&#432;ng n&#7871;u t&ocirc;i h&#7887;i ai &#273;&oacute;, v&iacute; d&#7909; nh&#432; b&#7841;n g&aacute;i t&ocirc;i v&#7889;n l&agrave; m&#7897;t b&aacute;c s&#297;, r&#7857;ng nguy&ecirc;n nh&acirc;n n&agrave;o g&acirc;y ra b&#7879;nh t&#7853;t, c&ocirc; &#7845;y s&#7869; &#273;&#432;a ra m&#7897;t chu&#7895;i d&agrave;i v&ocirc; t&#7853;n c&aacute;c di&#7877;n bi&#7871;n x&#7843;y ra tr&#432;&#7899;c khi b&#7879;nh b&#7897;c ph&aacute;t. Kh&ocirc;ng nh&#7919;ng trong v&#7845;n &#273;&#7873; b&#7879;nh t&#7853;t m&agrave; c&ograve;n trong t&#7845;t c&#7843; m&#7885;i &#273;i&#7873;u x&#7843;y &#273;&#7871;n v&#7899;i ch&uacute;ng ta trong th&#7871; gi&#7899;i ng&agrave;y nay. Ph&#7843;i c&oacute; m&#7897;t l&yacute; do g&igrave; &#273;&oacute; &#273;&#7875; m&#7885;i th&#7913; ti&#7871;p di&#7877;n, n&#7871;u kh&ocirc;ng nh&acirc;n lo&#7841;i &#273;&atilde; kh&ocirc;ng th&#7875; s&#7889;ng &#273;&#432;&#7907;c. Nh&acirc;n lo&#7841;i bu&#7897;c ph&#7843;i c&oacute; m&#7897;t s&#7921; tin t&#432;&#7903;ng &#7903; m&#7897;t m&#7913;c n&agrave;o &#273;&oacute; th&igrave; m&#7899;i d&aacute;m l&aacute;i xe h&#417;i, &#273;i thang m&aacute;y, &#259;n tr&#432;a, v.v. S&#432; ph&#7909; gi&#7843;ng r&#7857;ng ch&uacute;ng ta v&#7851;n &#273;ang &ldquo;m&ecirc; t&iacute;n&rdquo; v&igrave; &iacute;t c&oacute; b&#7857;ng ch&#7913;ng th&#7921;c nghi&#7879;m r&#7857;ng l&#7847;n n&agrave;o &#273;&#7841;p phanh th&igrave; xe c&#361;ng d&#7915;ng l&#7841;i. Ch&uacute;ng ta ng&#7847;m &#273;&#7883;nh r&#7857;ng c&aacute;c k&#7929; s&#432; &#273;&atilde; thi&#7871;t k&#7871; phanh xe m&#7897;t c&aacute;ch &#273;&uacute;ng &#273;&#7855;n. B&#7903;i v&#7853;y ch&uacute;ng ta &#273;ang m&ecirc; t&iacute;n &ndash; ch&uacute;ng ta tin t&#432;&#7903;ng m&agrave; kh&ocirc;ng c&#7847;n th&#7921;c ch&#7913;ng.<\/p>\n<p>Khi suy ng&#7851;m v&#7873; t&#7845;t c&#7843; nh&#7919;ng &#273;i&#7873;u n&agrave;y, t&ocirc;i t&#7921; th&#7845;y m&igrave;nh nh&#7887; b&eacute; khi ngh&#297; &#273;&#7871;n Ph&aacute;p l&#7921;c c&#7911;a ch&#432; Th&#7847;n m&agrave; S&#432; ph&#7909; &#273;&atilde; nh&#7855;c t&#7899;i. V&ocirc; s&#7889; chi ti&#7871;t c&#7847;n ph&#7843;i ch&#7913;ng minh trong th&#7871; gi&#7899;i con ng&#432;&#7901;i n&agrave;y &#273;&#7875; b&#7843;o tr&igrave; c&otilde;i m&ecirc; m&agrave; ch&uacute;ng ta &#273;ang s&#7889;ng. Vi&#7879;c n&agrave;y th&#7853;t b&#7845;t kh&#7843; t&#432; ngh&#7883;. S&#7889; l&#432;&#7907;ng nh&#7919;ng &#273;i&#7873;u &#273;&atilde; t&#7915;ng ph&#7843;i x&#7843;y ra &#273;&#7875; cho nh&#7919;ng &#273;i&#7873;u hi&#7879;n t&#7841;i &#273;ang x&#7843;y ra ph&#7843;i l&ecirc;n t&#7899;i con s&#7889; m&#361; c&#7911;a h&agrave;ng t&#7927;!!! Ph&aacute;p l&#7921;c th&#7853;t c&#7921; &#273;&#7841;i. C&#361;ng &#273;&uacute;ng th&ocirc;i v&igrave; S&#432; ph&#7909; th&#432;&#7901;ng nh&#7855;c t&#7899;i v&ocirc; l&#432;&#7907;ng Ph&#7853;t, &#272;&#7841;o, Th&#7847;n v&agrave; r&#7845;t nhi&#7873;u, r&#7845;t nhi&#7873;u &#273;&#7883;a th&#432;&#7907;ng th&#7847;n ti&ecirc;n.<\/p>\n<p>&#272;&acirc;y ch&#7881; l&agrave; th&#7875; ng&#7897; c&aacute; nh&acirc;n c&#7911;a t&ocirc;i.<\/p>\n<p>Tham kh&#7843;o:<\/p>\n<p>[1] B&aacute;o <i>The Times<\/i> (London), 12\/04\/2000, &lsquo;L&#7895; h&#7893;ng ozone s&#7869; l&agrave;nh l&#7841;i sau 50 n&#259;m, c&aacute;c nh&agrave; khoa h&#7885;c cho bi&#7871;t&rsquo;.<\/p>\n<p>D&#7883;ch t&#7915;:<\/p>\n<p><a href=\"http:\/\/pureinsight.org\/node\/1023\">http:\/\/pureinsight.org\/node\/1023<\/a><\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>Theo hi\u1ec3u bi\u1ebft hi\u1ec7n nay c\u1ee7a c\u1ed9ng \u0111\u1ed3ng khoa h\u1ecdc th\u1ebf gi\u1edbi th\u00ec l\u1ed7 h\u1ed5ng n\u00e0y \u0111\u01b0\u1ee3c g\u00e2y ra b\u1edfi l\u01b0\u1ee3ng kh\u00ed chlorofluorocarbons (CFC) v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n.<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[95],"tags":[172],"class_list":["post-23486","post","type-post","status-publish","format-standard","hentry","category-nhan-sinh-cam-ngo","tag-khoa-hoc-chan-chinh"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - 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