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Saturday, 03 May 2008 |
 Climate change and forests are inextricably linked. On the one hand, forests are already suffering the consequences of climate change on the planet by an increase in average annual temperatures, altered patterns of precipitation and extreme weather events more frequent.On the other hand, forests and the timber they produce capture and store carbon dioxide, playing a key role in mitigating climate change. Reverse of the coin: when they are over-exploited or destroyed and burned, forests can become sources of greenhouse gas, carbon dioxide.
"We certainly need to stop deforestation and increase the acreage of forest land masses," said Wulf Killmann, who chairs the interdepartmental working group of FAO on climate change. "But we also need to replace fossil fuels with biofuels - fuels such as wood sustainably managed forests - in order to reduce carbon emissions. We should also use more wood in sustainable products to eliminate carbon from the atmosphere for longer periods. "
How to trap one trillion tons of carbon
When fossil fuels burn, they emit carbon dioxide into the atmosphere, thus contributing to global warming and climate change.
Forests and trees help to mitigate these changes by removing carbon dioxide from the atmosphere and converting during photosynthesis carbon they store then in the form of wood and vegetation, a process known as the term "carbon sequestration".
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Last Updated ( Thursday, 03 July 2008 )
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Saturday, 03 May 2008 |
 If we calculate the human cost of global warming, countries will be forced to listen and take notes, according to a former senior United Nations.
Most people do not feel concerned by projections of rising temperatures or by the impact of climate change on the economy, but if it establishes a link between estimates of global warming and potential death, then countries will be forced to consider plans for prevention, noted Yvette Stevens, former deputy coordinator of emergency United Nations.
We need a''''Stern report on the human cost; people are not motivated by the impact of global warming on the Gross Domestic Product (GDP) of countries, "said Stevens, who left the UN recently to retire.According to the Stern Report on the economics of climate change, written in 2006 by economist Nicholas Stern for the British government, if countries do not master their greenhouse gas emissions, the overall cost of climate change would amount to an loss of at least five per cent of global GDP each year. However, according to the report, the cost of reducing emissions to avoid the worst effects of global warming would amount to one percent of global GDP each year.
So far, projections and other forecasts of global warming have failed to inspire a majority of countries to develop national action plans.
Molly Hellmuth, a scientist at the International Research Institute for Climate and Society, located in the USA, observed that only 49 of the least developed countries (LDCs) had drawn up action programmes in favour of a National climate adaptation, as required by the United Nations Framework Convention on Climate Change.
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Last Updated ( Thursday, 03 July 2008 )
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Saturday, 03 May 2008 |
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Insurance premiums are expected to increase in coming years under British insurer. Source: Bloomberg News
Lord Peter Levene is afraid of global warming. The Chairman of the Society of Lloyd's of London, sees a big problem for the global economy.
"Insurance premiums are expected to increase in coming years," he told lesaffaires.com, on the sidelines of a conference he gave. Other texts:
* Lloyd's of London
* Climate Change
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Last Updated ( Thursday, 03 July 2008 )
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Saturday, 03 May 2008 |
 The future will not be more lenient. In a solemn statement released in June 2005, the academies of sciences of the largest countries wrote: "The increased temperatures are likely to increase the frequency and severity of weather events such as heat waves and heavy rainfall. They could lead to of large-scale effects such as changes in the flow of the Atlantic Ocean (with major consequences for the climate of Northern Europe) and the melting of major ice sheets (with major effects on the regions of low altitude worldwide). "
The need to prevent climate change is now shared but the distribution of the effort to lead is widely disputed. The countries of the South believe that the problem stems mainly development past and the present consumption of Western countries, while the USA stressed the importance of future emissions in developing countries. The vision eventually prevail. According to projections by the International Energy Agency, the China issue, in 2030, almost as much carbon dioxide as the USA at that date.
The situation is not as rigid as blocking political discussion leaves appear. It is developing everywhere solutions that together could be effective. Besides the catastrophe emerges the idea that another way is possible.Look energy efficiency. The basic idea is that you can manufacture the same product or offer the same service by consuming less energy. |
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Last Updated ( Thursday, 03 July 2008 )
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Saturday, 03 May 2008 |
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Climate change is it really so bad? Does the catastrophic floods and droughts are a terrible way? Despite the widespread fear of hell due to the greenhouse effect, the latest computer simulations predict a climate of the future far less dramatic.Arrhenius, who later received the Nobel Prize in Chemistry, had calculated that emissions of CO2 - or carbonic acid as it was called - by burning coal, oil and natural gas would lead to a significant rise in temperature of the planet. But he adds, "influencing the climate by increasing the content of carbon dioxide in the atmosphere, we could expect to enjoy climates more stable and mild," with possibly the end of poor harvests and famines. Arrhenius simply expressed the view firmly rooted in the collective unconscious at the time: the warm periods are good times are bad cold.
The shock caused by the cold was deep and lasting. When the temperature dropped unexpectedly again in the 1960's, many meteorologists warned of a new ice age imminent - allegedly triggered by air pollution of human origin. Few people at that time could believe that a warming trend would be a threat. It was only after the rise of the environmental movement years . What they conveniently forget to say, however, is that humanity has altered the planet for a very long time, initially practicing deforestation and agriculture and later by building roads, cities and factories.
At the age of climate change, it became a hobby Social People acknowledge that the climate of all evils. It has never so hot in April this year? This lack of rain is it normal? Does this is a sign that the end is near?
Nowadays, few dare to question the growing hysteria on climate and more and more people prefer peremptory accusations. The UN Secretary-General, Ban Ki-Moon for example, said recently that climate change is a danger to the world, at least as large as the war. German Chancellor Angela Merkel agreed, describing the evolution of "more qu'alarmant" and asking: "is that we are ready to accept the fact that we now ayions weather completely unprecedented, such as tropical nights in of the Harz mountains? " The fact is that the tropical nights, as every meteorologist knows, are nothing new in Germany - every summer in a few - seems to have escaped its attention. |
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Last Updated ( Thursday, 03 July 2008 )
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