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Sea Level Rose By 4.5 mm Per Year During 2013-22 Period: World Meteorological Organization

Sea level rise is a major threat for countries such as India, China, Netherlands and Bangladesh, some of which comprise large coastal populations

Sea Level Rose By 4.5 mm Per Year During 2013-22 Period: World Meteorological Organization
Global mean sea level increased by 0.20 m between 1901 and 2018:

New Delhi: Global mean sea level rose by 4.5 mm per year during the period 2013-22 and human influence was very likely the main driver of these increases since at least 1971, the World Meteorological Department (WMO) said on Tuesday (February 14). Sea level rise threatens several low-lying small islands. It is a major threat for countries such as India, China, Netherlands and Bangladesh, some of which comprise large coastal populations. Several big cities on all continents are threatened such as Mumbai, Shanghai, Dhaka, Bangkok, Jakarta, Maputo, Lagos, Cairo, London, Copenhagen, New York, Los Angeles, Buenos Aires and Santiago. It is a major economic, social and humanitarian challenge, the WMO said in a report.

Also Read: Explainer: Who Will Pay For Climate ‘Loss And Damage’?

Global mean sea level increased by 0.20 m between 1901 and 2018. The average rate of sea level rise was 1.3 mm per year between 1901 and 1971, 1.9 mm per year between 1971 and 2006, and 3.7 mm per year between 2006 and 2018, it said.

Sea-level has risen faster since 1900 than over any preceding century in at least the last 3,000 years. The global ocean has warmed faster over the past century than since the end of the last deglacial transition (around 11,000 years ago), the department said.

Over the next 2,000 years, global mean sea-level will rise by about two to three m if warming is limited to 1.5 degrees Celsius, two to six m if limited to two degrees Celsius and 19 to 22 m with five degrees of warming, and it will continue to rise over subsequent millennia.

In case of very high greenhouse gas emissions (total failure of mitigation) there is a risk of sea-level rise of two m by 2100 and even 15 m by 2300, the WMO said.

The 2015 Paris Agreement aims to limit global warming to well below two degrees Celsius above pre-industrial levels and pursue efforts to limit the temperature increase to 1.5 degrees Celsius. Global temperature has increased by around 1.1 degree Celsius compared with the average in 1850–1900. The population, potentially exposed to a 100-year coastal flood is projected to increase by about 20 per cent if global mean sea level rises by 0.15 m relative to 2020 levels; this exposed population doubles at a 0.75 m rise in mean sea level and triples at 1.4 m without population change and additional adaptation.

Also Read: Rising Salinity And Sea Level Pose Multiple Health Challenges To The 4.5 Million People Of Sundarbans

(This story has not been edited by NDTV staff and is published from a syndicated feed.)

NDTV – Dettol have been working towards a clean and healthy India since 2014 via the Banega Swachh India initiative, which is helmed by Campaign Ambassador Amitabh Bachchan. The campaign aims to highlight the inter-dependency of humans and the environment, and of humans on one another with the focus on One Health, One Planet, One Future – Leaving No One Behind. It stresses on the need to take care of, and consider, everyone’s health in India – especially vulnerable communities – the LGBTQ populationindigenous people, India’s different tribes, ethnic and linguistic minorities, people with disabilities, migrants, geographically remote populations, gender and sexual minorities. In wake of the current COVID-19 pandemic, the need for WASH (WaterSanitation and Hygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign will continue to raise awareness on the same along with focussing on the importance of nutrition and healthcare for women and children, fight malnutrition, mental wellbeing, self care, science and health, adolescent health & gender awareness. Along with the health of people, the campaign has realised the need to also take care of the health of the eco-system. Our environment is fragile due to human activity, which is not only over-exploiting available resources, but also generating immense pollution as a result of using and extracting those resources. The imbalance has also led to immense biodiversity loss that has caused one of the biggest threats to human survival – climate change. It has now been described as a “code red for humanity.” The campaign will continue to cover issues like air pollutionwaste managementplastic banmanual scavenging and sanitation workers and menstrual hygiene. Banega Swasth India will also be taking forward the dream of Swasth Bharat, the campaign feels that only a Swachh or clean India where toilets are used and open defecation free (ODF) status achieved as part of the Swachh Bharat Abhiyan launched by Prime Minister Narendra Modi in 2014, can eradicate diseases like diahorrea and the country can become a Swasth or healthy India.

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