Ozone and UV bulletin
The stratosphere ozone layer is slowly recovering and the recovery will be complete in most parts of the atmosphere in the coming decades, according to the latest bulletin by the World Meteorological Organization
Atmosphere And Ozone Layer
-
Aeroswitch
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
-
Vienna convention brings US$ 490 million for protection of ozone layer: Champika
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 Vienna Convention in Doha Qatar recently.
-
Unep atmospheric brown cloud project report: Cities across Asia get dimmer
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 two ways.
-
Atmospheric brown clouds - regional assessment report with focus on Asia
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.
-
Southwest monsoon 2008: end of season report
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.
-
No lesser evil
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 to more than required sulphate, which can be harmful for paddy. In such cases it becomes
-
IAF will check gas emissions
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.
-
Precipitation chemistry at an urban area of Karnataka, India (2005-2007)
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.
-
Ozone: a threat to food security in South Asia
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 likely to impact more on poor and vulnerable people.