Atmosphere And Ozone Layer

Order of the National Green Tribunal regarding ozone pollution across urban India, 21/03/2025

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 …

U.S. forecaster says La Niña has faded, sees El Niño potential

A U.S. weather forecaster on Thursday said La Niña has faded and neutral conditions are likely to continue in the coming months, though it noted some chance that the El Niño phenomenon may reappear as early as the Northern Hemisphere spring. The Climate Prediction Center (CPC), an agency of the …

Increased atmospheric ammonia over the world’smajor agricultural areas detected from space

This study provides evidence of substantial increases in atmospheric ammonia (NH3) concentrations (14 year) over several of the worlds major agricultural regions, using recently available retrievals from the Atmospheric Infrared Sounder (AIRS) aboard NASA’s Aqua satellite. The main sources of atmospheric NH3 are farming and animal husbandry involving reactive nitrogen …

El Niño may make a comeback

The 2015-16 El Niño was the strongest since the record event of 1997-98 Less than a year after the world said goodbye to one of the strongest El Niños on record, forecasters are predicting the weather pattern may make a comeback. Climate models indicate the central Pacific Ocean will probably …

A missing source of aerosols in Antarctica – beyond long-range transport, phytoplankton, and photochemistry

Understanding the sources and evolution of aerosols is crucial for constraining the impacts that aerosols have on a global scale. An unanswered question in atmospheric science is the source and evolution of the Antarctic aerosol population. Original Source

Antarctic ozone hole, latest 2015 situation about recovery

Ultraviolet (UV) radiations from the Sun in the spectral range 100-280 nm react with the stratospheric atmosphere, and oxygen molecules (O2) and atoms (O) combine to produce ozone (O3). Since there are destruction processes also, the equilibrium amount is small, only a few percent of the atmosphere. However, it serves …

Block level weather forecast using direct model output from NWP models during monsoon season in India

The forecast for 655 districts and 6500 blocks had been prepared and implemented on 1P st P June, 2014. The procedure for getting forecast for the districts and blocks in India including altitude corrections is based upon regular (0.25 × 0.25) grid output from the T-574 Model and output from …

The impact of synoptic weather on UK surface ozone and implications for premature mortality

Air pollutants, such as ozone, have adverse impacts on human health and cause, for example, respiratory and cardiovascular problems. In the United Kingdom (UK), peak surface ozone concentrations typically occur in the spring and summer and are controlled by emission of precursor gases, tropospheric chemistry and local meteorology which can …

Comparing multiple model-derived aerosol optical properties to collocated ground-based and satellite measurements

Anthropogenic aerosols are a key factor governing Earth’s climate, and play a central role in human-caused climate change. However, because of aerosols’ complex physical, optical, and dynamical properties, aerosols are one of the most uncertain aspects of climate modeling. Fortunately, aerosol measurement networks over the past few decades have led …

100 countries push to phase out potentially disastrous greenhouse gas

A loose coalition of more than 100 countries, including the US and European nations, is pushing for an early phase-out of hydrofluorocarbons (HFCs), a powerful greenhouse gas that if left unchecked is set to add a potentially disastrous 0.5C to global temperatures by the end of the century. At a …

Japan to see average to warmer weather during October-December

Japan will see mostly average to warmer weather from October to December, the official forecaster said on Friday. Eastern Japan, including the most densely populated Tokyo area, will have a 40 percent chance of warmer-than-average temperatures for the period, the Japan Meteorological Agency said in its monthly three-month forecast. Meanwhile, …

Bettering Monsoon forecasting a gradual process: govt

With the India Meteorological Department (IMD)'s prediction of "above normal" Monsoon likely to go "wrong", the government today said the improvement in forecasting will be gradual. "Of the ten times, we have got our prediction right nearly eight times. We are working to improve the forecast, but that will be …

Ozone-depleting substances 2015

This report summarises the data reported by undertakings in accordance with the ODS Regulation for 2015 and looks at the major trends since 2006. Aggregated data reported by companies on the import, export, production, destruction, and feedstock and process agent use of ozone-depleting substances in the European Union.

India's 2016 monsoon rains could be below average: forecasters

Monsoon rains in India, the world's second-biggest producer of rice and sugar, could be lighter than average this year in the absence of the La Nina weather pattern, two senior officials at the state-run weather department said on Wednesday. Rainfall in September could be up to 15 percent less than …

Hottest September day since 1973 forecast for parts of UK

It’s that time of year when Britons are used to unpacking their winter wardrobes. But don’t disturb the moths just yet: forecasters say Tuesday could be the warmest September day in more than 40 years. The UK’s Indian summer is set to continue, with the mercury predicted to climb to …

China phases out over 250,000 tonnes of ozone depleting substances

China has phased out 250,000 tonnes of ozone depleting substances (ODS) in the past five years, accounting for over a half of the total amount phased out by all developing countries, the Ministry of Environmental Protection(MEP) said Friday. On Friday, a meeting commemorating this year's International Day for the Preservation …

10-20% rise in ozone levels in India, harmful for lungs and crops: Report

NEW DELHI: While Indian cities are still grappling with the impacts of severe particulate matter (PM) pollution, a new report has raised the flag on ozone levels (O3) too. 'The Cost of Air Pollution', a report by the World Bank and Institute of Health Metrics and Evaluation (IHME) released on …

Warmer oceans have caused changes in Earth: Report

The upper depths of the oceans of the Earth have warmed significantly over the last 20 years causing an increase in the number of severe hurricanes, storm surges, loss of ice and change in global weather patterns, according to a new report. The report which was presented at the IUCN …

Chinese province reports hottest month in 55 years

China's Qinghai province reported the hottest month in 55 years, 3.4 degrees Celsius above the average August temperature. Data provided by the local climate centre on Saturday showed the average temperature in Qinghai last month was 16.4 degrees Celsius, the highest since records began in 1961, Xinhua news agency reported. …

Antarctic ozone depletion between 1960 and 1980 in observations and chemistry-climate model simulations

The year 1980 has often been used as a benchmark for the return of Antarctic ozone to conditions assumed to be unaffected by emissions of ozone depleting substances (ODSs), implying that anthropogenic ozone depletion in Antarctica started around 1980. Here, the extent of anthropogenically-driven Antarctic ozone depletion prior to 1980 …

State gets 49% more rain than last yr

JAIPUR: The south-west monsoon has been fruitful for the state so far as Rajasthan has got 49.14% more rainfall compared to 2015. Except for Sriganganagar, which is the only district getting deficit rainfall, all the districts have got either excess or more than average rainfall. As per the data available …

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