उत्तर लेखन के लिए रोडमैप परिचय व्याख्या: सबसे पहले रेत और धूल भरी आंधियों की परिभाषा दें और यह बताएं कि ये आंधियां मुख्यतः शुष्क और अर्ध-शुष्क क्षेत्रों में उत्पन्न होती हैं। इनकी विशेषताएँ और उत्पत्ति के कारणों का उल्लेख करें। संदर्भ: इस ...
Model Answer Potential Impact of Arctic Ice Melting on Oceans The Arctic's sea ice is melting at an alarming rate, with NASA reporting a 13% decrease in Arctic ice every decade, resulting in a 95% loss over the past 30 years. According to the World Economic Forum, the Arctic may be ice-free in the sRead more
Model Answer
Potential Impact of Arctic Ice Melting on Oceans
The Arctic’s sea ice is melting at an alarming rate, with NASA reporting a 13% decrease in Arctic ice every decade, resulting in a 95% loss over the past 30 years. According to the World Economic Forum, the Arctic may be ice-free in the summer by 2040 if greenhouse gas emissions continue unchecked. The melting of Arctic ice can have several profound effects on the oceans:
- Sea Level Rise: As the Arctic ice melts, it adds freshwater to the oceans, contributing to a rise in global sea levels. This is a significant concern for coastal regions worldwide.
- Ocean Chemistry Changes: The influx of freshwater from melting ice dilutes carbonate ions in the seawater, disrupting the ocean’s ability to neutralize carbon dioxide and reducing ocean pH. This results in increased ocean acidity, which harms marine life.
- Impact on Marine Life: Acidification and changes in water temperature threaten the survival of marine creatures, including fish, corals, and other sea life, causing disruption to ecosystems and food chains.
- Disruption of Ocean Currents: The influx of freshwater makes the seawater less dense, potentially altering or halting major ocean currents. These currents play a crucial role in regulating the global climate and distributing heat across the planet.
How India Could Be Affected by Arctic Ice Melting
India could experience several impacts due to the melting of Arctic ice, as observed in various studies:
- Rising Sea Levels: According to the World Meteorological Organization, sea levels along India’s coasts are rising faster than the global average due to the melting ice in the Arctic. This poses a threat to coastal cities and low-lying areas, leading to flooding and loss of land.
- Migration: The rise in sea levels and the increase in intense cyclones have already displaced 1.5 million people from the Sundarbans delta. A rapid increase in sea levels could trigger widespread migration from coastal regions, leading to social and economic challenges.
- Impact on Indian Monsoon: The reduction in Arctic sea ice affects the Greenland Sea and the Central Pacific Ocean’s temperatures, which in turn impacts the Indian monsoon. A decrease in ice cover can lead to less rainfall during the monsoon season, affecting agriculture and water resources in India.
In conclusion, the melting of Arctic ice presents significant global and local challenges, with wide-reaching consequences for the oceans and countries like India. Immediate action to reduce emissions and address climate change is essential to mitigate these impacts.
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रेत और धूल भरी आंधियाँ (SDS) पर्यावरण और अर्थव्यवस्था पर गंभीर प्रभाव डालती हैं। पर्यावरणीय प्रभाव: मृदा क्षरण: SDS उपजाऊ मिट्टी को हटा देती हैं, जिससे कृषि उत्पादकता में कमी आती है। संयुक्त राष्ट्र के अनुसार, प्रतिवर्ष 200 करोड़ टन धूल और रेत वातावरण में प्रवेश करती है, जिसमें से 25% मानवजनित गतिविRead more
रेत और धूल भरी आंधियाँ (SDS) पर्यावरण और अर्थव्यवस्था पर गंभीर प्रभाव डालती हैं।
पर्यावरणीय प्रभाव:
आर्थिक प्रभाव:
इन आंधियों के प्रभावों को कम करने के लिए सतत भूमि प्रबंधन, वनीकरण, और प्रारंभिक चेतावनी प्रणालियों का विकास आवश्यक है। साथ ही, अंतर्राष्ट्रीय सहयोग और नीतिगत पहल भी महत्वपूर्ण हैं।
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