Data from the NCCR shows that between 1990 & 2016, out of the total 69 coastal districts, 23 have undergone Erosion by over 40% while 14 have undergone accretion by over 40%. Among 7 states with higher erosion, the State of West Bengal has 100% of its districts undergoing erosion by over 40%, followed by Kerala and Gujarat with 50% and 37% of their districts. In a February 2023 reply given in the Parliament in response to a question on the factors causing Coastal Erosion in Andhra Pradesh, the Ministry of Earth Sciences (MoES) stated that “The shoreline changes are combined effect of natural (like tropical cyclones, monsoon floods, sea level rise, extreme events, etc.) and anthropogenic (like ports/harbours, damming of rivers, etc.) reasons” The same Ministry in a study report titled ‘Assessment of Climate Change over the Indian Ocean’ noted that “Since the middle of the twentieth century, India has witnessed a rise in average temperature; a decrease in monsoon precipitation; a rise in extreme temperature and rainfall events, droughts, and sea levels; and an increase in the intensity of severe cyclones, alongside other changes in the monsoon system. There is compelling scientific evidence that human activities have influenced these changes in regional climate.” Both the official documents categorically record the link between Climate Change and the numerous negative impacts of the same. Coastal Erosion is one of such major impacts witnessed at a greater level in India. Factly’s previous story on Coastal Erosion had highlighted that National Centre for Coastal Research (NCCR) reports had shown that out of the total 6,907 km of the coast in the mainland of India, about 2,318 km at 33.6% and 1,855 km at 26.9% had undergone erosion and accretion, respectively, while the rest of 39.6% the coastal land being in the stable condition. The official data itself reveals that 60% of coastal land had undergone significant changes. These changes have happened within a span of about 3 decades between 1990 to 2018. In this story, we look at the district-level situation of the Coastal States of India which are facing the problem of Coastal Erosion and Accretion. Methodology The data has been sourced from Dataful, which has compiled District-wise National Assessment of Shoreline Changes data published by NCCR from the year 1990 to 2016. The same data is used for analysis in this story. None of the Coastal Districts are Free of Erosion and Accretion India has 9 States and 2 Union Territories with Coastal Land. According to the Indian National Centre for Ocean Information Services (INCOIS), about 250 million people, or about 26% of the Indian population live within 100 kilometres of the shoreline of the Indian Coast. Another 2021 study by the Council on Energy, Environment and Water (CEEW) noted that India stands in the 7th position among the countries that are vulnerable to climate extremes. The same study also noted that more than 300 extreme events have hit the country in recent decades which are directly and indirectly attributable to impacts caused by Climate Change. The NCCR has published reports on shoreline changes in 69 districts, including the data of UTs Daman and Diu and Coastal cities Chennai and Mumbai. The analysis of district-wise data shows that not a single coastal district in India had been without Erosion or Accretion during the period from 1990 to 2016. Notably, the Highest Erosion and Accretion were witnessed in the South 24 Paraganas district of West Bengal and Kachchh district of Gujarat at 193 and 124 kilometres, respectively. This Lowest Erosion and Accretions were recorded in Guntur district of Andhra Pradesh and Karaikal district of Tamil Nadu at 0.9 and 2.56 kilometres, respectively. The CEEW report notes that 95% of the coastal districts are vulnerable to numerous types of negative consequences that are witnessed across the globe due to Climate Change. In confirmation of the same report, the data shows that all coastal districts have undergone both Erosion as well Accretion. 40 and 27 Districts have undergone over 20 Kilometres of Erosion and Accretion, Respectively The data shows that some of the districts among 69 districts have undergone significant erosion by over 20 kilometres each, between the period of 1990 and 2016. While 40 districts in 8 out of the 9 coastal states have undergone Erosion of more than 20 kilometres each, 27 districts in the 9 states have undergone Accretion of over 20 kilometres in length each.
Hospitality Journal
Data: 33% Coastal Districts Record Erosion of Over 40% of Shoreline While 20% Districts Record Accretion of Over 40%
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