Greenhouse gas concentrations in the atmosphere hit new record highs in 2022, with no end in sight to the rising trend, according to this new report by the World Meteorological Organisation (WMO). This Bulletin represents the latest analysis of observations from the WMO GAW Programme. It shows globally averaged surface …
Methane (CH4) uptake by steppe soils is affected by a range of specific factors and is a complex process. Increased stocking rate promotes steppe degradation, with unclear consequences for gas exchanges. To assess the effects of grazing management on CH4 uptake in desert steppes, we investigated soil-atmosphere CH4 exchange during …
India’s Cabinet has given its approval to a “National Monsoon Mission,” which will equip the weather department with high-end computers, radars and scientific manpower to generate more detailed and accurate forecasts. India’s current antiquated methods of forecasting the all-important monsoon rains is getting a re-vamp. No other weather phenomenon generates …
According to the ‘Faint Young Sun’ paradox, during the late Archaean eon a Sun approximately 20% dimmer warmed the early Earth such that it had liquid water and a clement climate. Explanations for this phenomenon have invoked a denser atmosphere that provided warmth by nitrogen pressure broadening or enhanced greenhouse …
A progressive global increase in the burden of allergic diseases has affected the industrialized world over the last half century and has been reported in the literature. The clinical evidence reveals a general increase in both incidence and prevalence of respiratory diseases, such as allergic rhinitis (common hay fever) and …
The National Oceanic and Atmospheric Administration (NOAA) has maintained records of weather and climate since the late 1800s. According to these records, the month of March, 2012 has set a new record as the warmest March ever for the contiguous United States. Across the nation, 15,000 local warm temperature records …
New Delhi: It’s early days yet, but the first indications from within the country about this year’s monsoon are positive. A new climate model being developed under the government’s ambitious Monsoon Mission project has predicted above average rainfall for the season. The model, still being refined, is based on modern …
The atmospheric nitrous oxide mixing ratio has increased by 20% since 1750. Given that nitrous oxide is both a long-lived greenhouse gas and a stratospheric ozone-depleting substance, this increase is of global concern. However, the magnitude and geographic distribution of nitrous oxide sources, and how they have changed over time, …
Time series analysis of Aerosol Optical Depth (AOD) derived from NOAA-AVHRR data during the period 1996–1999 and the MODIS data during 2000–2009 over the Arabian Sea revealed a systematic biennial variability in the high AOD during summer months. The variability is more prominent over the northern and central parts of …
Regional Climate Model of version 3 (RegCM3) was driven with Emissions Scenarios A2 of ECHAM4 at 0.54°×0.54° horizontal grid resolution in two parameterizations: Grell scheme with Arakawa–Schubert (GAS) and Fritch–Chappell (GFC) assumptions. The simulated rainfall and mean surface air temperature were calibrated and validated against ground-based observed data in Bangladesh …
Data on surface ozone concentration compiled for a 10-year period from 1990 to 1999 for Pune and Delhi are analyzed in terms of its frequency distribution, annual trend, diurnal variation and its relation with various meteorological and chemical parameters. It is found that the surface ozone concentration range showing highest …
Human activity kept global temperatures close to a record high in 2011 despite the cooling influence of a powerful La Nina weather pattern, the World Meteorological Organization said on Friday. On average, global temperatures in 2011 were lower than the record level hit the previous year but were still 0.40 …
Zero tilling and organic farming will not only eradicate the need for expensive fossil fuel machinery, synthetic fertilizers and crop chemicals but also increase yields substantially and make way for farmers to return to their natural state, said Foundation for Farming, (Zimbabwe) Director Brian Oderive. He was inaugurating an international …
Environmentalists have welcomed the government’s tax hike on big cars and SUVs, claiming this will help reduce toxic emissions. But they warn that the government has taken no steps to curb the use of subsidised diesel in private diesel cars. Anumita Roychowdhury, executive director, research and advocacy, Centre for Science …
Cyclical rise and fall of monthly mean CO2 concentration occurred rather regularly at Mauna Loa, Hawaii, USA, during 1958–2008, with peaks occurring in April or May followed by troughs in September or October. However, the frequency of troughs in September increased from 32% in 1958–1974 to 82% in 1992–2008 and …
Knowledge of the responses of soil nitrogen (N) availability, fine root mass, production and turnover rates to atmospheric N deposition is crucial for understanding fine root dynamics and functioning in forest ecosystems. Fine root biomass and necromass, production and turnover rates, and soil nitrate-N and ammonium-N in relation to N …
A new study led by the Georgia Institute of Technology provides further evidence of a relationship between melting ice in the Arctic regions and widespread cold outbreaks in the Northern Hemisphere. The study's findings could be used to improve seasonal forecasting of snow and temperature anomalies across northern continents. Since …
International Conference on Global Warming commences Three-day International Conference on Global Warming, the Biggest Challenge 21st Century commenced at Government degree college (GDC). The international conference was inaugurated by Abdul Gani Malik, Minister for Higher Education, who was the chief guest. While speaking he said that man will have to …
New Delhi Underlining the principle of “equity” in climate talks, Prime Minister Manmohan Singh on Monday said growth should take place in a way which does not harm the environment. During his meeting with Environment Ministers of BASIC countries, that is Brazil, South Africa, India and China, Singh said the …
Poor nations have been sparring over emission cuts without realising that the fight is a deliberate creation of rich countries Many years ago, in a desperately poor village in Rajasthan, people decided to plant trees on the land adjoining their pond so that its catchment would be protected. But this …
