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DAILY NEWS ANALYSIS

GS-III :
  • 21 May, 2020

  • 2 Min Read

Ozone Depletion

Ozone Depletion

Scientists have observed for the first time that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion. There has been an international ban on chlorine-containing human-made chemicals called chlorofluorocarbons (CFCs). Measurements show that this has resulted in about 20% less ozone depletion during the Antarctic winter than there was in 2005.

Stratospheric ozone protects life on the planet by absorbing potentially harmful ultraviolet radiation that can cause skin cancer and cataracts, CFCs are long-lived chemical compounds that eventually rise into the stratosphere.

In the long months of polar winter, chemical reactions take place in Polar Stratospheric Clouds that could not take place anywhere else in the atmosphere. These reactions convert the inactive chlorine in CFCs into more active forms, especially chlorine gas (Cl2). When the sunlight returns to the South Pole in October, UV light rapidly breaks the bond between the two chlorine atoms, releasing free chlorine.

Chlorine atoms go on to destroy ozone molecules, resulting in the Antarctic ozone hole. The measurements are made by Microwave Limb Sounder (MLS) aboard the Aura satellite, which has been monitoring continuously since 2004.

Source: Web


International Debt Report

The report is released by World Bank recently. Recent Findings – Currently, about 60% of low-income countries are at high risk of debt distress. Debt-service payments, which include principal and interest, increased by 5% over the previous year for all developing countries. The 75 countries eligible to borrow from t

Migration and Development Brief

The latest Migration and Development Brief reveals a continuing growth in remittance flows to low- and middle-income countries (LMICs) in 2023, albeit at a slower pace compared to previous years. The brief is a biannual report. Prepared by – The Migration and Remittances Unit, Development Economics (DEC). Released by 

Noma

Recently, the World Health Organization (WHO) has added the health challenge noma to its official list of neglected tropical diseases (NTD). It is a severe gangrenous disease of the mouth and face. Origin - Greek word “nom?”, meaning ‘to devour’, as noma eats away facial tissue and bones if not treated

Polar Science and Cryosphere Research (PACER)

Recently, India’s 1st winter scientific expedition to the Arctic has been flagged off from the MoES headquarters in New Delhi. It is a Central Sector umbrella scheme. Implemented by – Ministry of Earth Sciences (MoES) through National Centre for Polar and Ocean Research (NCPOR), Goa. Objectives &n

National Culture Fund

National Culture Fund (NCF) Received Rs. 3.70 Crore from Non-Government Sources during Last Five Years (2018-19 to 2022-23). Set up in – 1996, a trust under the Charitable Endowment Act, 1890. Aim – To mobilize extra resources through Public-Private Partnership (PPP) towards promoting, protecting & preserving India

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