Order of the National Green Tribunal in the matter of News Item titled “CSE report finds dangerous increase in ozone pollution across urban India” appearing in Down to Earth dated 06.08.2024. The Principal Bench of the NGT heard the matter on March 21, 2025. In the original application, registered suo …
Net primary production (NPP) in the Yellow River Basin, China, during 1982-1999 was estimated with the CASA model using satellite data. The yearly NPP (NPPt) tended to increase during 1982-1999 throughout the Yellow River Basin. A large mean annual NPP for each grid cell was indicated in both the upper …
food safety China lists illegal additives China has come out with its first official compilation of 17 illegal food additives used in the country. The banned substances include boric acid, commonly used as an insecticide but also mixed with noodles and meatballs to increase elasticity, and industrial formaldehyde, used in …
Surface ozone variability at Pune (an urban location) and nearby rural locations has been studied using KI solution chemical method. The measurement showed well-marked diurnal cycle of ozone concentration with minimum at sunrise and maximum at noon hours. Simultaneous measurements of humidity and temperature along with ozone suggest that the …
Aerosols above the Himalaya may alter regional thermostat nano-sized pollutants were for the first time found reacting with each other above the Himalaya. Scientists from the Universite Blaise Pascal, France, said these ultra-fine pollutants are combining to form aerosols
Environment Minister Patali Champika Ranawaka yesterday announced that the Vienna convention has provided a sum of US$ 490 million for the protection of the ozone layer. Minister Ranawaka made this announcement at a felicitation ceremony organized by the parliament to felicitate him on his election as the President of the …
Around 13 megacities have so far been identified as ABC hotpots. Bangkok, Beijing, Cairo, Dhaka, Karachi, Kolkata, Lagos, Mumbai, New Delhi, Seoul, Shanghai, Shenzhen and Tehran where soot levels are 10 per cent of the total mass of all human-made particles. ABCs can reduce sunlight hitting the Earth's surface in …
Increasing amount of soot, sulphates and other aerosol components in atmospheric brown clouds (ABCs) are causing major threats to the water and food security of Asia and have resulted in surface dimming, atmospheric solar heating and soot deposition in the Hindu Kush-Himalayan-Tibetan (HKHT) glaciers and snow packs. These have given …
IMD's long range forecast for the seasonal rainfall over the country as a whole and over different homogenous regions except northwest India have been accurate. However, the seasonal rainfall over northwest India and rainfall during July for the country as a whole have not been accurate. While the prediction overestimated …
Controlling methane emissions through acid rain? adding sulphate to soil in paddy fields is a popular method of controlling methane emission, to the tune of up to 70 per cent. In highly polluted countries such as India and China, acid rain also deposits a substantial amount of sulphate. This leads …
The Indian Air Force has decided to study ways and means to reduce emission of harmful gases from its aircraft so as to prevent depletion of the ozone layer. Speaking on the sidelines of a workshop organised by the IAF in collaboration with the environment ministry, IAF sources said that …
Bulk percipitation displays the combined effects of all water soluble components of precipitation. Dust from the earth's surface is commonly assumed to be alkaline; it is commonly reported in the literature as a constituent of the atmosphere and of precipitation. Alkaline and alkaline earth cations in precipitation are typically attributed …
Current day concentrations of ground level ozone (O3) are commonly reducing crop yields by between 5 and 35 % at agriculturally important locations across South Asia. O3 induced economic crop losses could be in the region of $4 billion per annum for staple crops in South Asia; such losses are …
health sciences Hooked, genetically Researchers of the University of Michigan, usa, have cracked the genetic secrets of nicotine addiction. Whether or not one gets hooked to smoking is dependent on a particular variant of a gene
Udhagamandalam: Under the aegis of the Public Awareness Association of Udhagamandalam, Ozone Protection Day was observed at the Municipal Elementary School here on Tuesday. Addressing the gathering, the Secretary of the Association G.Janardhanan said that efforts should be taken by the people in order to ensure that the dependence on …
GENEVA - The hole in the ozone layer over Antarctica has already surpassed its 2007 size this year, and is set to keep growing for another few weeks, the UN weather agency said on Tuesday. The Antarctic ozone hole appears every year and normally stretches to about the size of …
Sudha Nambudiri |KOCHI: There is a reason to cheer on the International Ozone Day. The scientists have recorded a perceptible reduction in the ozone depletion levels in the atmosphere. It is generally believed that the preventive measures taken by the Inter-governmental Panel on Climate Change (IPCC) by cutting down the …
Pune, September 16 The United Nations Environment Programme (UNEP) and Pune Zilla Parishad Secondary School Section will hold a special programme to celebrate the International Day for the Preservation of Ozone Layer on Wednesday. An educational tool for creating awareness about Ozone depletion and climate change among students will be …
