Green House Gases

  • Lofty Pledge to Cut Emissions Comes With Caveat in Norway

    Last year, as United Nations scientists were warning of the perils of man-made climate change, this small country of fjords and factories reacted with an extraordinary pledge: by 2050 Norway would be

  • Seoul plans to freeze emissions until 2012

    The new government of South Korea, among the world's largest emitters of greenhouse gases, plans to cap emissions at 2005 levels for the next five years in spite of Seoul's exemption from cuts under the Kyoto protocol. The environment ministry presented the proposal to freeze emissions until 2012 in a report to Lee Myung-bak, the president, in a bid to join international efforts to fight global warming.

  • BMC plans greenhouse emission study, marks eleven sectors

    In a bid to check the city's contribution to global warming, the Brihanmumbai Municipal Corporation (BMC) has listed eleven sectors where it will undertake a study of greenhouse emissions.

  • CCX offers market solutions to environmental issues'

    World and we are taking steps to make it happen. The Montreal Climate Exchange should be activated this year.

  • Climate protection

    On the tortuous road to saving the planet from climate change, one traffic rule stands out. Drivers who speed risk paying a price.

  • China may upset global warming fight

    Washington: China's current carbon emission levels have set alarm bells ringing for environmentalists as they are likely to upset global greenhouse stabilisation efforts.

  • Aviation generated pollution (editorial)

    By Wg Cdr N K Pant (Retd) Scientists estimate that the effect of aviation emissions on the climate is up to five times the impact of emissions occurring on the ground. The primary gas emitted by jet aircraft engines is carbon dioxide, which, scientists believe, can survive in the atmosphere up to 100 years. It means denying the coming generations from living in a world where they can breathe clean air, enjoy diverse ecosystems and eat healthy food. Some of the major airlines of the world seem to be lately realising the adverse role of their big passenger jets on climate changes on account of emissions of carbon dioxide and other greenhouse gases from the engine-exhausts into the earth's atmosphere. In this context Virgin Atlantic's first flight of a commercial aircraft powered with bio-fuel from London to Amsterdam on February 24, 2008 to show it can produce less carbon dioxide than normal jet fuels was an appreciable endeavour. This particular flight was partially fueled with a bio-fuel mixture of coconut and babassu oil in one of its four main fuel tanks and is expected to produce much less CO2 than regular jet fuel. Since aircraft engines emit gases and particulates that reduce air quality, spearheading the test flight was indeed a potentially useful experiment aimed at cutting down emission of greenhouse gases. A few weeks prior to this, an airbus A 380 too had taken off on a similar test sortie, powered on a blend of regular fuel and liquid fuel processed from natural gas with the hope that the super jumbo will become a centerpiece of efforts to develop the next generation of cleaner fuel. Several airlines have also pledged to clean up their fleets as fears about global warming and fuel costs have mounted. The petrol and diesel driven vehicles leave harmful trails of smoke on the roads. Thousands of air turbine fuel (ATF) guzzling aeroplanes release tonnes of hazardous fumes into our biosphere daily. The increasing size of aircraft, the emission of black smoke during take-off, and the density of air traffic at major airports, have drawn environmentalists' attention to pollution by aircraft. A loaded jumbo 747, for instance, uses tens of thousands of litres of fuel on merely take-off. Pollution by aircraft arises from the jettisoning of spare fuel after being airborne. It must be released at a height sufficient to allow it to vaporise so that it does not reach the ground in liquid form. Commercial jet planes make a significant contribution to the problem of global warming. According to a UN report, aviation is responsible for over half of the pollution caused by transportation on the surface. In India the number of passenger and freight aircraft flown by private airlines is fast multiplying. The Indian Air Force is likely to increase its flying operations in the coming years. Its increasing use of supersonic combat aircraft flying at high altitudes may lead to increasing pollution of the upper air, where pollutants may accumulate since natural dispersion at such heights is not very effective. It is estimated that one multi-engine passenger aircraft is being added every fortnight to the fleets of India's domestic carriers that are engaged in cutthroat competition to fly to the remotest corners of the country. As a result, the number of aircraft flying the Indian skies has gone up considerably. Air Force, Army, Navy and the coast guard has more than 1,000 fighter jets, transport planes and helicopters kept aloft in routinely scheduled day and night flying.

  • Green technology: Makers hedge bets on alternative vehicles

    As improved hybrid, clean-diesel, electric and other green powertrain technologies proliferate, manufacturers are investing in the next-generation cars we will drive in five, 10 or 15 years' time.

  • Japan Says To Consider Emissions Trading System

    Japan will consider a scheme for trading greenhouse gas emissions, the government said on Friday, a week after a powerful business lobby and the trade ministry softened their strong opposition. In a report of new steps aimed at slashing its greenhouse gas emissions in line with the Kyoto protocol, the government also proposed deeper but voluntary cuts for industry, adding to existing measures such as preserving forests and purchasing emissions rights from abroad. The plan, revealed as Japan prepares to host a climate-focussed G8 summit of industrialised nations in July, will be opened for public comment before it is officially adopted by the end of March. A cap-and-trade system with mandatory emissions limits, long opposed by the Japan Business Federation, was mentioned in the plan as a topic for consideration in the near future, as were environmental taxes and the introduction of daylight saving time. Environment Minister Ichiro Kamoshita warned other cabinet ministers that they might later be asked to cooperate with further cuts, an official said. As the host of the conference that produced the Kyoto Protocol, Japan is anxious to improve its own emissions record, at present well adrift of its goal of an average 6 percent cut on 1990 levels between 2008 and 2012. That means slashing emissions to 1.186 billion tonnes a year of carbon dioxide equivalent, although Japan actually emitted an estimated 1.359 billion tonnes in the year that ended in March 2006. As it prepares to host G8 on the northern island of Hokkaido in July, Japan has been attempting to take a leading role in climate change, including by planning a major environmental conference ahead of the main summit, media reports have said. The top UN climate change official said earlier this month it would be a disadvantage if Japan were to stay out of an otherwise universal cap-and-trade system in the future. The business lobby's chairman, Fujio Mitarai, was reported this month as softening his opposition to cap-and-trade, while the trade ministry said it was seriously studying such an approach. (Reporting by Isabel Reynolds and Chisa Fujioka; Editing by Mike Miller) REUTERS NEWS SERVICE

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