{"id":20978,"date":"2025-06-09T17:01:56","date_gmt":"2025-06-09T11:31:56","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=20978"},"modified":"2025-06-09T17:54:02","modified_gmt":"2025-06-09T12:24:02","slug":"sai","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/sai\/","title":{"rendered":"Stratospheric Aerosol Intervention"},"content":{"rendered":"<h2>Stratospheric Aerosol Injection Latest News<\/h2>\n<p>A study recently published in the journal Earth\u2019s Future offered an innovative approach to Stratospheric aerosol injection (SAI) technique that could reduce its costs but also bring it closer to fruition despite the opposition to it.<\/p>\n<h2>About Stratospheric Aerosol Injection<\/h2>\n<ul>\n<li>It is a\u00a0<strong>method of cooling the planet<\/strong>\u00a0and reducing the impacts of climate change by adding a layer of\u00a0<strong>tiny reflective particles to the high atmosphere.<\/strong><\/li>\n<li>The method was\u00a0<strong>inspired by volcanic eruptions<\/strong>, which have been known to have a cooling effect on the planet by spewing aerosols into the air.<\/li>\n<li>It aims to\u00a0<strong>mimic the cooling effects<\/strong>\u00a0of volcanic eruptions by injecting\u00a0<strong>sulfur dioxide<\/strong>\u00a0(SO2) directly into the stratosphere, where it forms sunlight-reflecting sulfate aerosols.\u00a0<\/li>\n<\/ul>\n<h3>Key Facts about Aerosols<\/h3>\n<ul>\n<li>They are tiny\u00a0<strong>solid or liquid particles<\/strong>\u00a0suspended in\u00a0<strong>air or a gas.<\/strong><\/li>\n<li>Aerosols can be\u00a0<strong>natural, such as fog<\/strong>\u00a0or gas from volcanic eruptions, or\u00a0<strong>artificial,<\/strong>\u00a0such as\u00a0<strong>smoke from burning fossil fuels.<\/strong><\/li>\n<li>Aerosol particles are either emitted directly into the atmosphere (primary aerosols) or produced in the atmosphere from precursor gases (secondary aerosols).<\/li>\n<li>Aerosol particles are tiny, but numerous, and often comprise a number of inorganic and organic substances.<\/li>\n<li>True aerosol particles range in diameter from a few milli micrometres to about 1 micrometre (equal to 10-4 cm).\u00a0<\/li>\n<li>Particles with a diameter of less than 0.1 micrometre are sometimes referred to as Aitken nuclei.<\/li>\n<li>Visible forms of atmospheric aerosol plumes include smoke, smog, haze, and dust.<\/li>\n<\/ul>\n<h2>Stratospheric Aerosol Injection FAQs<\/h2>\n<p><strong>Q1:<\/strong>\u00a0What is the Stratosphere?<\/p>\n<p><strong>Ans:<\/strong>\u00a0It is the layer of Earth\u2019s atmosphere lying between the troposphere and the mesosphere. The stratosphere extends from the tropopause at about 10 to 17 km (about 6 to 11 miles) altitude to its upper boundary (the stratopause) at about 50 km (30 miles).<\/p>\n<p><strong>Q2:<\/strong>\u00a0What is smog?<\/p>\n<p><strong>Ans:<\/strong>\u00a0Smog is a specific type of air pollution. It is a combination of harmful pollutants (often appearing relatively low to the ground as a yellow-brown haze) that are introduced into the atmosphere by both natural and human induced processes.<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/new-study-makes-controversial-weather-tweaking-idea-more-realistic\/article69668923.ece\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stratospheric Aerosol Injection is a method of cooling the planet and reducing the impacts of climate change by adding a layer of tiny reflective particles to the high atmosphere.<\/p>\n","protected":false},"author":5,"featured_media":49629,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[21,770,22,23],"class_list":{"0":"post-20978","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-prelims-pointers","9":"tag-stratospheric-aerosol-injection","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/20978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=20978"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/20978\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/49629"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=20978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=20978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=20978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}