{"id":106071,"date":"2026-06-01T12:09:16","date_gmt":"2026-06-01T06:39:16","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=106071"},"modified":"2026-06-01T12:09:16","modified_gmt":"2026-06-01T06:39:16","slug":"aravalli-range-indias-weakening-dust-shield","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/aravalli-range-indias-weakening-dust-shield\/","title":{"rendered":"Aravalli Range: India&#8217;s Weakening Dust Shield and Its Environmental Impact"},"content":{"rendered":"<h2><b>Aravalli Range Latest News<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A massive dust storm in Churu, Rajasthan recently \u2014 affecting districts including Hanumangarh, Sri Ganganagar, Bikaner, Nagaur, Alwar, and Sikar \u2014 went viral on social media.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This drew attention to a critical but underappreciated ecological reality: the <\/span><a href=\"https:\/\/vajiramandravi.com\/current-affairs\/aravalli-range\/\" target=\"_blank\"><b>Aravalli range<\/b><\/a><span style=\"font-weight: 400;\"> serves as India&#8217;s natural shield protecting the densely populated Indo-Gangetic plains from Thar Desert dust storms.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">However, this shield is rapidly weakening due to mining, deforestation, and urbanisation.<\/span><\/li>\n<\/ul>\n<h2><b>Dust Storms Over Northern India \u2014 The Climatic Context<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dust storms originating from the Thar Desert are a regular <\/span><b>pre-monsoon phenomenon<\/b><span style=\"font-weight: 400;\"> in northern India (April-June), <\/span><span style=\"font-weight: 400;\">fuelled by intense heat, dry conditions, and south-westerly and westerly winds<\/span><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The IMD&#8217;s Climate Hazards and Vulnerability Atlas of India (based on 1981-2010 data) shows that parts of northwest India fall in the highest dust-storm frequency class \u2014 averaging 0.89 to 1.55 dust-storm days.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Delhi and neighbouring districts already lie in a high-exposure zone. In June specifically, Delhi records a storm frequency of 2.5 days \u2014 the highest in the country for that month.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As the <\/span><a href=\"https:\/\/vajiramandravi.com\/current-affairs\/aravalli-range-explained\/\" target=\"_blank\"><b>Aravallis degrade<\/b><\/a><span style=\"font-weight: 400;\">, the impact of these storms is intensifying.\u00a0<\/span><\/li>\n<\/ul>\n<h2><b>The Aravalli Range \u2014 India&#8217;s Natural Dust Shield<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The Aravalli range stands physically between the <\/span><b>Thar Desert and the Indo-Gangetic plains<\/b><span style=\"font-weight: 400;\"> \u2014 one of the world&#8217;s most densely populated regions.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When dust-laden winds blow in from the Middle East and the Thar Desert during the pre-monsoon months of April to June, they run into the Aravallis, lose speed, and drop their load of sand \u2014 preventing it from reaching Delhi, Punjab, Haryana, and Uttar Pradesh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This <\/span><b>natural filtering process<\/b><span style=\"font-weight: 400;\"> is visually evidenced by &#8220;<\/span><b>obstacle dunes<\/b><span style=\"font-weight: 400;\">&#8221; \u2014 large sand deposits found on the western slopes of the Aravallis, directly exposed to hot winds from the west.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The vegetation growing on these dunes resembles desert flora. Where additional tree cover exists, winds must pass through it \u2014 creating a &#8220;natural scrubbing effect&#8221; that reduces the movement of sand and dust.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As per the environmental researchers, these dunes are visual proof of the protective role the Aravalli range plays in interception of dust.<\/span><\/li>\n<\/ul>\n<h2><b>State of the Aravalli Range \u2014 Alarming Degradation<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A Forest Survey of India (FSI) assessment of 2018 found that <\/span><b>31 of the 128 Aravalli hills <\/b><span style=\"font-weight: 400;\">in Rajasthan had <\/span><b>completely disappeared<\/b><span style=\"font-weight: 400;\"> due to anthropogenic (human-caused) pressures.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">There has also been a <\/span><b>significant loss of hills<\/b><span style=\"font-weight: 400;\"> with 200-600 metres elevation in areas like Naraina, Kalwar, Kotputli, Jhalana, and Sariska.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The Environment Ministry&#8217;s Aravalli Restoration Framework flagged multiple causes behind the degradation:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Mining of red silica, granite, and other minor minerals<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Deforestation and loss of vegetation cover<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Urbanisation and construction activities<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Land-use change and encroachments<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Pastoral activities (overgrazing)<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A 2009 Wildlife Institute of India (WII) study identified 12 gaps in the Aravalli range that have expanded further due to forest degradation and inadequate vegetation cover.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These gaps act as unprotected corridors through which dust freely passes into the northern plains.<\/span><\/li>\n<\/ul>\n<h2><b>Consequences of Aravalli Degradation<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The weakening of the Aravalli shield has multiple cascading consequences:<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Increased Dust Storm Frequency<\/b><span style=\"font-weight: 400;\"> \u2014 Growing gaps in the range threaten to increase the frequency of sand and dust storms in Delhi, Punjab, and Uttar Pradesh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Worsening Delhi&#8217;s Air Quality<\/b><span style=\"font-weight: 400;\"> \u2014 Regular dust-laden winds contribute to particulate matter pollution \u2014 directly degrading air quality in the national capital region.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Impact on Rainfall<\/b><span style=\"font-weight: 400;\"> \u2014 The range&#8217;s degradation can affect rainfall patterns in surrounding regions \u2014 as mountains and forests influence precipitation.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Alteration of Solar Radiation<\/b><span style=\"font-weight: 400;\"> \u2014 Dust can affect the scattering of sunlight, temporarily altering surface temperatures over large areas \u2014 with implications for agriculture, human health, and regional climate.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Scientists have underscored the need for &#8220;long-term investigation and analysis on dust frequency and load over northern India&#8221; \u2014 indicating that the full consequences of Aravalli degradation are still being understood.<\/span><\/li>\n<\/ul>\n<p><b>Source:<\/b> <strong><a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-climate\/churu-dust-storm-aravallis-shield-weakening-10717028\/\" target=\"_blank\" rel=\"nofollow noopener\">IE<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aravalli Range, India&#8217;s Weakening Dust Shield, highlights how mining, deforestation, and urbanisation are reducing protection against dust storms in northern India.<\/p>\n","protected":false},"author":18,"featured_media":106098,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[689,60,22,59],"class_list":{"0":"post-106071","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-mains-current-affairs","8":"tag-aravalli-range","9":"tag-mains-articles","10":"tag-upsc-current-affairs","11":"tag-upsc-mains-current-affairs-tag","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/106071","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=106071"}],"version-history":[{"count":3,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/106071\/revisions"}],"predecessor-version":[{"id":106104,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/106071\/revisions\/106104"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/106098"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=106071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=106071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=106071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}