Forest environmental services

Forests are commonly known for the goods that they provide - timber, fuelwood, fodder and other non-timber forest products. Less commonly known is the fact that forests also provide a number of crucial ecosystem services, for example, their role in sequestering carbon from the atmosphere, protecting upstream watersheds, conserving biodiversity and gene-pools for future generations and in providing landscape beauty. Forest environmental services also include regulation of the water cycle and climate, soil formation, nutrient recycling, and plant pollination. While the ever-increasing demand for forest goods is widely recognized, the increased demand and need for forest services is often not as well known.

One reason for this is the failure of markets, and society in general, to adequately value these services in economic or financial terms. Consequently, forest environmental services are rarely accounted for in national Gross Domestic Product (GDP) statistics and few well-developed markets exist for them. However, today there is growing awareness of the need to adequately acknowledge and measure the value of these services, so that decisions involving forest land use change are based on the true worth of forests, rather than on the immediate tangible goods that they provide. There is also an urgent need to develop appropriate mechanisms, market-based or otherwise, that can generate income flows to communities or institutions protecting forests and providing these services, so that there is a direct incentive for them to continue doing so.

Forests and Water Linkages
Water in theory is the most renewable of resources. Yet, careless use, population growth, and increasing demand all mean that provision of adequate safe supplies of water is now a major source of concern, expense, and even international tension. The links between forests and watersheds are complicated and vary with geography, weather patterns, and management. Forests in catchments generally result in cleaner water downstream, thus significantly reducing the costs of purification (to what extent depends on the level and type of contamination). In addition, particular forests such as tropical moist cloud forests appear to increase flow into catchments as well as ameliorate local flooding.

With water shortages increasing in many parts of the world, the importance of this link is being rapidly realized today. Twenty-eight per cent of the world's forests are located in mountains and these forests are the source of some 60-80% of the world's fresh water resources. They are also natural barriers for landslides, torrents, and floods. Tropical Montane Cloud Forests (TMCFs), which have unique hydrological values and high rates of species endemism, are today being lost faster than any other major forest ecosystem. However, nearly 30% of the world's major watersheds have lost more than three-quarters of their original forest cover.

Recognizing this problem, some countries have already started protecting or replanting trees on degraded hill slopes to safeguard their water supplies. Generating more knowledge on this forest environmental service, and developing appropriate payment or compensation mechanisms between upstream watershed service providers and the downstream beneficiaries, will be a key challenge for the forestry sector in the coming years.

Festivals in India

India, the land of festivals and fairs. It is a land of festivity - religious as well as folkloristic. Whether you go to the East or the West, North or the South you would be able to enjoy every month a festival or a fair. Every day of the year there is a festival celebrated in some part of the country. Be it cultural or religious, it gives everyone an opportunity to enjoy and join the festivity. More... http://www.pagesofindia.com

Green Tree Ant

Some Special Trees of Green Lake

Green Lake is Seattle's most heavily visited park. In its fame as a local natural attraction it may not be as dominant as New York City's Central Park, but only because in comparison Seattle offers such an enviable abundance of parkland and greenery. Green Lake's trees are a most impressive collection, and I recently wrote a book about them because so many people love the place.
An acquaintance of mine who has utterly no knowledge of trees besides what we all possess in common, was moved to expressions of delight when the silent songs and mute histories of Green Lake trees were revealed by my booming voice, as, like an uncorked bottle, I let forth on the subject so dear to me. Since people respond to love, here is some for you --three Green Lake trees that stir my heart.

HAUTE NATURE

Climate change warms Arctic, cools Antarctica

The Arctic and Antarctica are poles apart when it comes to the effects of human-fueled climate change, scientists said on Friday. 'In the north, it is melting sea ice, but in the south, it powers winds that chill things down.'
The North and South poles are both subject to solar radiation and rising levels of climate-warming greenhouse gases, the researchers said in a telephone briefing. But Antarctica is also affected by an ozone hole hovering high above it during the austral summer.
"All the evidence points toward human-made effects playing a major role in the changes that we see at both poles and evidence that contradicts this is very hard to find," said Jennifer Francis, an atmospheric scientist at Rutgers University in New Jersey. An examination of many previous studies about polar climate, to be published on May 6 in the journal Eos, "further depletes the arsenal of those who insist that human-caused climate change is nothing to worry about," Francis said in a telephone briefing.
In the Arctic, Francis and co-authors of the research said, warming spurred by human-generated carbon dioxide emissions has combined with natural climate variations to create a "perfect Arctic storm" that caused a dramatic disappearance of sea ice last year, a trend likely to continue.
"Natural climate variability and global warming were actually working together and they've sent the Arctic into a new state for the climate that has much less sea ice," said James Overland, an oceanographer at the US National Oceanic and Atmospheric Administration. "There's very little chance for the climate to return to the conditions of 20 years ago."
In Antarctica, the ozone hole adds a new factor to an already complicated set of weather patterns, according to Gareth Marshall of the British Antarctic Survey.
The changes in air pressure that go along with depleted stratospheric ozone are responsible for an increase in the westerly winds that whip around the Southern Ocean, at latitudes a bit north of most of Antarctica.
These winds isolate much of the southern continent from some of the impact of global warming, Marshall said. The exception is the Antarctic Peninsula, which reaches northward toward South America. There, the effects of warming have been dramatic, he said, because the winds that protect the rest of Antarctica do not insulate the peninsula.
The stratospheric ozone hole, caused by the ozone-depleting release of chemicals found in refrigerants and hair sprays, is likely to fully recover by 2070 as less of these chemicals are in use, as a result of international agreements.
The ozone layer shields Earth from harmful solar radiation, but its recovery is likely to open the way for warming in central Antarctica, the scientists said.

Everest turning into world's highest cesspool

A deadly peril lurks on Mt Everest, the highest summit in the world, which is far more dangerous than the freezing cold, gale winds and recently posted security forces who are empowered to shoot at the sight of political activities. The new hazard comes from human waste scattered along the mountain slopes, which could run into hundreds of tonnes.
"Toilet paper and human excreta litter the Everest base camp (at an altitude of 6,400 metres), the slopes, and even the summit (8,848 metres) itself," says Ang Tshering Sherpa, chief of the Nepal Mountaineering Association, which is entrusted with promoting mountaineering in this country.
"In summer, when the snow melts, the frozen human waste comes into sight and starts raising a stink. The grave health and environmental hazard the untreated excreta pose is a matter of great concern," Sherpa added.
While conscious mountaineers have been trying to clear the garbage left on the mountains, nothing has been done so far to treat the human waste lying there.
In the past, expeditions have collected used oxygen cans, tents, food tins and other litter and brought much of it down but the human waste remains.
"As it remains frozen during the expeditions, it is very difficult to remove it and bring it down," Sherpa said.
In a bid to prevent the world's tallest mountain from turning into the highest cesspool, an expedition is now introducing, for the first time in the history of the Everest, bio-degradable toilets.
Sherpa's son Dawa Steven Sherpa is leading the 24-member Eco Everest 2008 expedition to the summit in memory of the peak's greatest benefactor, Edmund Hillary, to try and clean the garbage.
The team is carrying three "Clean Mountain Cans" with them, a portable toilet manufactured by an American company. The bins are lined with bio-degradable bags that decompose the human waste deposited in them.
The expedition is armed with 200 such bags. Besides using them, the team members will also try to remove the frozen waste on the summit, put it in the bags and bring it down to the base camp.
The cans, which can be bought for $75 a piece in the US, cost a thumping $150 when brought to Nepal, one of the poorest countries in the world.
"The cans were gifted by the American Alpine Club, while some of the bags were donated by the factories that made them," Sherpa said.
Sherpa, who runs Asian Trekking, one of the leading trekking agencies in Nepal, said his company would henceforth use the cans and urge other agencies to employ them too.
The expedition, that is also highlighting the dangers of climate change in the Himalayan slopes, is tying to put into action a banner in Kathmandu that urges citizens to use garbage wisely and turn it into money.
It is offering each climber who brings down human or other waste down from the peak to the base camp $1 for each kg of junk.