Agriculture is multi-functional, producing economic goods including food, feed, fibre, and fuel, as well as providing several intangible or non-tradable services to society free of cost. Non-tradable services, unlike economic goods, remain unpriced; as a result, farmers are not compensated monetarily for the benefits of the several non-tradable services they …
NEW DELHI: India has switched on its first public air purifier in the heart of capital New Delhi as part of an experiment that backers say could help other smog-choked cities in emerging countries. The maker of the seven-ton machine, Italy's Systemlife, claims the box-like structure can purify 10,000 cubic …
This study describes the methodology and results for calculating future global aviation emissions of carbon dioxide and oxides of nitrogen from air traffic under four of the IPCC/SRES (Intergovernmental Panel on Climate Change/Special Report on Emissions Scenarios) marker scenarios: A1B, A2, B1, and B2. In addition, a mitigation scenario has …
Compared to previous years, Chandigarh residents breathe fresher. Air quality in the Union Territory has improved considerably over the last few years, a survey has revealed. The level of major pollutants
This document contains the presentation made by Umesh Babu at National climate research conference, IIT Delhi, March 5-6, 2010. Central to global measures to contain climate change is reduction in emissions of GHGs. Several times, non-annex countries like India and China are blamed for Green House Gas (GHG) emissions, particularly …
This work presents an estimate of the air pollution from municipal solid waste transport haulage sector for the city of Kolkata. About 3000 MT/day of solid waste are generated in the city presuming generation rate of 450-500 gm/capita resident/day. On an average, 205 private carriers transport 60% of daily generated …
New Delhi, Jan. 20: Air pollution from eastern and southern Asia, possibly from China and India, may be causing spikes in atmospheric ozone levels over North America, a study has suggested. The study by a team of international scientists has shown for the first time that tropospheric ozone, 3km to …
This paper develops the model and methodology to estimate the marginal external cost of urban road transport, which is necessary for analysing optimal urban transport prices. Four major marginal external costs analysed in this paper include the marginal external costs for congestion, air pollution, road accidents and noise. The paper …
Efforts to reduce air pollution in Kanpur are in danger of being wasted, as pollution levels are once again creeping up in the city: says a latest analysis of recent air quality data done by Centre for Science and Environment (CSE), a New Delhi-based research and advocacy organisation.
US EPA has announced final endangerment findings on GHGs concluding that these threaten public health and welfare of American people. Findings cover CO2, CH4, N2O, HFCs, PFCs and SF6 - subject of scrutiny & analysis for decades by scientists. This report finds that the current and projected concentrations of the …
Hydrogen Blend To Curb NOx Emissions Neha Lalchandani | TNN New Delhi: In a move towards converting to greener fuel, Society of Indian Automobile Manufacturers (SIAM) has started the process of optimizing the engines of certain vehicles for use with hydrogen-blended CNG (HCNG). After research, SIAM and Indian Oil Corporation …
New Delhi, Nov. 18: India has revised standards for air quality for the first time in 15 years in a move that environmental experts say will overnight tar more cities and localities across the country as polluted beyond limits. The new standards notified by the environment ministry have lowered maximum …
Human activities have more than doubled the amount of nitrogen(N) circulating in the biosphere. One major pathway of thisanthropogenic N input into ecosystems has been increased regionaldeposition from the atmosphere. Here we show that atmosphericN deposition increased the stoichiometric ratio of N and phosphorus(P) in lakes in Norway, Sweden, and …
In arid environments such as deserts, nitrogen is often themost limiting nutrient for biological activity. The majorityof the ecosystem nitrogen flux is typically thought to be drivenby production and loss of reactive nitrogen species by microorganismsin the soil. We found that high soil-surface temperatures (greaterthan 50
Attempts to halt and reverse a decade of worsening air quality in London are being held up by political indecision. After steady rises in air quality up until the turn of the century, London should be well on the way to tackling one of the most serious public health concerns …
The fire at the Indian Oil Corporation (IOC) depot continued to burn for the sixth day even as government officials maintained that only one of the 11 containers was ablaze on Tuesday evening, which would be expended in another 24 hours. Meanwhile, the state government has relaxed roadblocks in the …
Despite its long-recognized importance, nitrous oxide (N2O, also commonly referred to as laughing gas) sometimes seems like the forgotten atmospheric gas. Concerns about the stratospheric ozone layer have largely focused on reactions of ozone with chlorine and bromine atoms released from the atmospheric dissociation of chlorofluorocarbons and other anthropogenic halocarbons. …
Rio De Janeiro: Cars running on sugarcane ethanol can produce as many harmful pollutants as those using ordinary petrol (gasoline), according a study published by Brazil
