Carbon Dioxide

Renewables 2024 global status report: global overview

This overview sets the scene for the various modules in the Renewables 2024 Global Status Report Collection. It provides high-level trends on the status of renewables in the wider fossil fuel-dominated energy system in the context of global challenges such as climate change, development goals and the geopolitical landscape. Urgent …

Soot, unsuitable for the climate

soot or black carbon particles combine with other aerosols to influence climate. The magnitude of the climate forcing caused directly or indirectly by black carbon exceeds that caused by methane, suggesting that black carbon may be the second most important component of global warming after carbon dioxide. Mark Z Jacobson, …

The sinking debate

The politics surrounding climate change is getting murkier by the day as a few indusrialised countries insist on using forests to combat global warming. The debate over the use of these forestswhich absorb carbon dioxide and are called

Handle with care and prudence

The convention cannot solve all global problemsbut the developing world should use all opportunities of forest conservation

The Chinese position

The IPCC report came in for criticism from none other than China, the host of the Shanghai conference. Chinese representatives blamed the forum of ignoring views of scientists who believe global warming is a part of normal climatic fluctuations instead of a consequence of rising carbon dioxide emissions. "The organisation …

CAMEROON

Devices to reduce the emissions of toxic gases from two Cameroon lakes will be put in place by a team of 10 scientists and engineers from the us , France and Japan. The emission of these gases has killed almost 1,800 people till now. "The devices called Nyos Organ would …

Mileage: environmental rating of Indian automobile sector

In-depth Life Cycle Analysis of the environmental performance of major players in the Indian automobile sector. Also analyses technological issues, comaprative analysis of best practices with global players and recommends future outlook.

Climate on a skid

global warming over the next century could turn out to be much worse than previously estimated, says the latest report of the uk Met Office's Hadley Centre for Climate Prediction and Research. Even if greenhouse gas ( ghg ) emissions are stabilised (which would require an overnight cut of 60-70 …

Fertilising the ocean

scientists have imitated a key process that might have triggered the beginning and end of the ice ages and also could solve the present day problem of carbon emissions. An international team of scientists working on the Southern Ocean Iron Release Experiment ( soiree ) has "fertilised' a part of …

The Arctic carbon sink

snow covered tundra vegetation of the Arctic region starts absorbing carbon dioxide ( co 2 ) from the beginning of spring, says an ecologist. Therefore, it may be the so-called missing

Equitable accounting

accounting uncertain sources of carbon emission can only lead to the transparent, consistent, comparable, accurate and verifiable accounting system required to fulfill the obligations of the Kyoto Protocol. This was stated in a report prepared by Austria-based Forestry Project of the International Institute of Applied Systems Analysis ( iiasa ). …

Gas gobbling algae

a team of scientists at Ohio University in the us is working on technology that uses algae, sunlight and the natural process of photosynthesis to absorb carbon dioxide ( co 2 ) from the combustion of coal. The result: reduced greenhouse gas emissions. co 2 has been identified as the …

Cheap fix

at least two Norwegian companies are acquiring several thousand hectares of land in East Africa to plant fast growing trees like eucalyptus and pine. The groups

A problem with pollen

allergy sufferers, beware: global warming could bring more hay fever, according to us government research that shows ragweed produces significantly more pollen as carbon dioxide increases. The ubiquitous weed makes nearly twice as much pollen now as it did 100 years ago and is likely to double its production over …

Mighty clash

a clash between the us and the European Union (eu) over the rules for cutting greenhouse gas emissions, as agreed in the Kyoto Protocol in 1997, seems to be inevitable. The us in a submission to the United Nations has said that the Kyoto Protocol must recognise forests and agricultural …

Alarming sign

Carbon dioxide levels in the atmosphere are at their highest in 20 million years, two British scientists have revealed. Paul Pearson, of the University of Bristol, in the west of England, and Martin Palmer, of Imperial College, London, reported in the magazine Nature that they used the evidence of plankton …

Rising green heat

a team of us and European scientists have identified a new greenhouse gas that traps heat more effectively than all other known greenhouse gases. Trifluoromethyl sulfur pentafluoride ( sf5 cf3 ) is a synthetic gas and is 18,000 times more effective in trapping atmospheric heat as compared to carbon dioxide, …

Soiled earth

In 1981-82, some farmers from Hoshiarpur and Nawanshehar districts approached scientists at Punjab Agricultural University (PAU), Ludhiana. Their wheat crops had turned white, animals were diseased with healthy cattle dying within months of purchase. Soil analysis indicated selenium (Se) levels above toxic limits in an area of 1,000 hectares of …

Warning signals

The burning of fossil fuels leads to the release of carbon dioxide and other gases into the atmosphere. Once in the atmosphere, these gases act like glass walls and trap heat on the Earth's surface. If the rise in carbon emissions goes unchecked, the planet's average temperature could rise by …

Fuelling heat

Humans have not being able to shed their reliance on fossil fuels. Every year, millions of tonnes of coal and oil is burned to produce energy. As a result, carbon locked in the Earth is being released into the atmosphere. This has led to a significant increase in the Earth's …

High intake !

It may now become complicated to determine the link between climate change and carbon cycle. Thanks to a new study of a deciduous forest in Canada which shows that warm springs can cause trees to increase their take-up of carbon. "It takes up more carbon in years with warm springs,' …

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