Global Warming

State of the Climate in Asia 2024

The World Meteorological Organization’s State of the Climate in Asia 2024 report warns that the region is warming nearly twice as fast as the global average, driving more extreme weather and posing serious threats to lives, ecosystems, and economies. In 2024, Asia experienced its warmest or second warmest year on …

Options to Chloroflurocarbons

The problem coolant:CFCs-To be phased out ine developing world by 2010 under the Montreal Protocol on Substances that deplete the Ozone Layer. Deplete the Ozone Layer. Deadlines could be advanced by 4 years. The possible substitutes In favour Against Hydrochloroflurocarbons such as HCFC-22 Can only be a temporary substitute to …

A way out for India

INDIAN fridge manufacturers may find an alternative to chlorofluorocarbons (CFC) in a technology that is being revived in some European countries. Besides being eco-friendly, the adoption of this technology will rid Indian manufacturers of dependence on Western companies for a CFC substitute. Most substitutes on offer today for ozone-depleting CFCs, …

India catching up fast

SCIENTISTS at Hyderabad's Indian Institute of Chemical Technology (IICT) recently announced they can now produce in the laboratory HFC-134a, a hydrofluorocarbon that is seen as the best substitute for CFCs, especially in USA and Japan. With access to the multilateral fund set up under the Montreal Protocol, IICT scientists plan …

Methane on the decline

SCIENTISTS say the increase in the atmospheric concentration of methane -- a major greenhouse gas -- is fast levelling off (New Scientist, Vol 140, No 1991). Evidence of a halt in methane rise comes from measurements of atmospheric gases made at 26 stations around the world. In the 1970s, the …

Threatening monsoons

PAKISTAN'S agriculture dominated economy may be crippled by increased variation in monsoons over the next 50 years as a result of global warming, fears the director of the Pakistan Institute of Environmental Development Action Research, according to a Panos report by Najma Sadeque. With the expected doubling of atmospheric carbon, …

Pengiun clues

AS THE global warming debate heats up, scientists are looking towards the most unlikely source for clues -- penguins. They suspect the availability of fish on which penguins feed is increasing in the waters of the Antarctic Ocean, which are warming slightly. Therefore, fatter penguins would indirectly confirm the greenhouse …

The new culprit of global warming

BOREAL forests -- consisting of mostly coniferous and some deciduous trees in the northern hemisphere -- are being destroyed faster than before and may be making the world a hotter place. Boreal forests comprise one-third of the world's forests and cover almost 8 per cent of the land surface. About …

The greening of the urban landscape

WHEN WILLIAM Morris began his epic, The Earthly Paradise, with these lines in 1868, he was reacting to the effects of the Industrial Revolution and the unbridled urban growth of 19th century England. A century later, what was confined to the West has spread across the globe. And because we …

Global lungs or firewood for the poor?

THOUGH the State of Forest Report 1991 says India's forest cover increased from 6,40,134 sq km in 1989 to 6,40,694 sq km in 1991, the feat the report describes is impossible: Forest products are primarily used for human and livestock consumption, and as human and livestock population increased by about …

What`s the panic all about?

RESEARCHERS working on ozone depletion are being attacked increasingly by critics who say the fears they have aroused concerning ozone depletion due to release of chlorofluorocarbons (CFCs) are all part of a politically motivated sham. One of the first such attacks was made by a Brazilian meteorologist who pointed out …

Double standards of the world`s green helmets

ENVIRONMENTAL NGOs in the US are rushing ahead of their government in both their desire and actions to act as the world's green helmets. A statement issued by the Environment Defence Fund and other US environmental groups at the time of the G-7 Tokyo Summit against the World Bank loan …

A long term perspective on global warming

Everyone these days is aware of the phenomenon of global warming, even if they find it difficult to distinguish between stratospheric ozone depletion and the greenhouse effect. Global Warming: The Economic Stakes is about the greenhouse effect and the resultant environmental pollution and global damage. Incoming radiation from the sun …

Small island states seek additional funds

FINANCING sustainable development, says the 41-member Alliance of Small Island States (AOSIS), will be the most important issue to be taken up by the 1994 global conference on the development of these states. US and European Community representatives noted, despite their "Rio rhetoric", they would accept mention of only the …

Tax fears

FEARS that oil demand would decline because of a US-proposed energy tax have been expressed by delegates at a meeting of the Organisation of Petroleum Exporting Countries (OPEC). The Clinton administration had proposed the tax in an effort to reduce emission of greenhouse gases. OPEC representatives are worried that the …

STAR shifts from soaps, sleuths to nature

STAR Plus, the satellite channel well-known for its steamy soaps and street-wise sleuths, is going green -- and with a vengeance. It showed a two-part series in mid-March called After The Warming and has scheduled, among other programmes for this slot, Race to Save the Planet, -- a ten-part series …

USA may soften its stand on global warming

A HINT that Washington may soften its opposition to measures to curb greenhouse gas emissions was given at the recent session of the Framework Convention on Climate Change in New York. In an implicit dig at the Bush administration's attitude -- which was widely blamed for watering down the terms …

Delayed hazards of earth`s fiery outbursts

A VOLCANIC explosion does not affect only those living in the vicinity -- it's impact can be global and it may be felt for years afterwards. A volcanic eruption can cause unexpected changes in the earth's climate and environment and the onset of the Ice Age, global cooling, depletion of …

Atmospheric implications of burning forests

MOTIVATED by the need for a holistic understanding of the impact of human activity on the earth's natural phenomena, scientists in the last decade have been studying the earth as an entire system, focussing their attention on large-scale physical and biotic (related to living things) interactions. The pursuit of this …

European bird pioneers new route

BIRD MIGRATION patterns can change dramatically over decades and scientists say global warming can increase the incidence of such changes. Drastic changes in climate and landscape during the ice ages led to many birds altering their migratory routes. Such changes occur at present as well, but too gradually to be …

Sun plays marginal role in global warming

TWO RECENT climate studies have found that while changes in solar radiation do contribute to global warming, this effect is small as compared to that of human-made greenhouse gases. The increase in the annual average global temperature at the earth's surface was as much as 0.8o C between 1880 and …

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