Intense harvesting of caterpillar fungus is damaging the Tibetan hillside and leading to violent land disputes

AFP - A Thai-owned firm Friday rejected Indonesia's 2.4 billion US dollar compensation claim over a major oil spill off Australia's north which campaigners say hit the livelihoods of thousands of poor fishermen.

Reuters - An oil and gas platform operated by Mariner Energy burst into flames in the Gulf of Mexico on Thursday, but the crew of 13 escaped and there were no signs of an oil spill, the Coast Guard said.

AFP - Farmers in eastern China are grappling with an explosion in the population of wild boars, who are destroying crops and upsetting the ecological balance, state media said on Friday.

AP - An oil platform exploded and burned off the Louisiana coast Thursday, the second such disaster in the Gulf of Mexico in less than five months. This time, the Coast Guard said there was no leak, and no one was killed.

It is time to go blackberry picking, and I have already got stained fingers from this black, juicy, wild fruit which I enjoy gathering and then turning into puddings. The ripe wheat in the fields has been cut down and is now being carted away, leaving confused rabbits and field mice in bewilderment at the disappearance of the thick forest of tall cornstalks where they had been living. On our moors the heather is turning from pink into a deep purple, and some patches of bracken are turning brown.

I have watched a few wild birds in the hedges foraging for seeds and fruit berries, but many of the seeds are enclosed in a hard shell which birds cannot crack. Toadstools have sprung up in small groups, chiefly at the base of trees: these fungi have neither leaves nor flowers, but they do have colourful caps. In a local pine wood I have found toadstools almost as big as buns; a naturalist tells me that these fungi draw nourishment from dead leaves and rotting wood.

Pine marten numbers have declined in this county due to habitat loss and persecution; these small animals feed on carrion, rabbits and voles and beetles, as well as fruit, berries, nuts and fungi. One of their main enemies are foxes, which catch and kill them when they can, but pine martens cannot be easy prey for a fox because they are climbers, which foxes are not, and they climb quickly up tree trunks, gripping the bark with their strong claws.

On rare occasions I have seen a stoat or a weasel; these little hunters look alike in colour, but weasels are about a third smaller. Both animals have long bodies, long necks and little heads with pointed snouts and short tails. They are born hunters and live in burrows, usually in a field or, occasionally, in a warm cluster of weeds or gorse. Weasels prey chiefly on mice and rats and small birds, and must be crafty hunters to be successful; they are small enough to chase a field mouse down its underground tunnel.

• Birds
• Wildlife

Reuters - An oil and gas platform operated by Mariner Energy burst into flames in the Gulf of Mexico on Thursday, but the crew of 13 escaped and there were no signs of an oil spill, the Coast Guard said.

AFP - Millions of Africans may lose a key source of livelihoods as a fifth of freshwater African species are threatened with extinction, the updated Red List of endangered species showed Thursday.

AP - Engineers removed a temporary cap Thursday that stopped oil from gushing into the Gulf of Mexico from BP's blown-out well in mid-July. No more oil was expected to leak into the sea, but crews were standing by with collection vessels just in case.

Ric O'Barry, who appeared in the Oscar-winning film, delivers petition signed by 1.7 million people to US embassy in Tokyo

The star of an Oscar-winning film about dolphin hunting in Japan delivered a petition to the country's US embassy calling for an end to the practice.

Ric O'Barry, 70 – who appeared in The Cove and trained dolphins for 1960s TV show Flipper – was flanked by police and dozens of supporters carrying banners. The petition was signed by 1.7 million people from 151 countries.

O'Barry had hoped to deliver it to the Japanese fisheries agency but cancelled the plan after threats from a nationalist group with a history of violence. The Cove, which won this year's Oscar for best documentary, shows fishermen from the town of Taiji who scare dolphins into a cove before killing them slowly by piercing them repeatedly.

O'Barry said: "I'm not losing hope. Our voice is being heard in Taiji."

The annual hunt in the town began on Wednesday, but boats came back empty. The government allows the hunting of around 20,000 dolphins a year and argues that killing them is no different from breeding cows and pigs for slaughter. Most Japanese have never eaten dolphin meat and, even in Taiji, it is not consumed regularly.

• United States
• Japan
• Wildlife
• Marine life

Thirteen workers flee drilling platform but oil company denies spill

Fresh fears about drilling in the Gulf of Mexico were raised today when fire forced workers to abandon an oil and gas platform, just six months after the BP explosion that created an environmental disaster in the region.

The company, Mariner Energy, said none of the 13 workers, who fled the platform and took to the sea in immersion suits, were injured. The coastguard said they were taken by ship to a nearby platform and from there to hospital in Houma, Louisiana, to be checked. Ships, helicopters and a plane were sent by the coastguard from Houston, New Orleans and Mobile.

Photographs of smoke billowing from the rig alarmed politicians, environmentalists, fishermen and others on the Gulf coast, still coping with pollution from the BP oil spill.

Peter Troedsson, a spokesman for the coastguard, said the fire had been put out and, in spite of initial reports of an oil slick, ships and helicopters at the scene could see no pollution round the platform.

He said the initial report had come from a Mariner ship at the scene, but the coastguards could see no oil sheen at the site.

The fire is a setback for the oil industry, which has been arguing that drilling in the Gulf is safe and that the BP explosion was a rare event. It came only 24 hours after companies including Mariner had staged a rally in Houston against a moratorium on deepwater drilling in the Gulf. About 5,000 employees had been bussed in for the rally.

Barbara Dianne Hagood, a spokesman for Mariner Energy, told the Financial Times on Wednesday: "I have been in the oil and gas industry for 40 years, and this [the Obama] administration is trying to break us. The moratorium they imposed is going to be a financial disaster for the Gulf coast, Gulf coast employees and Gulf coast residents."

Another spokesman for Mariner, Patrick Cassidy, said he did not anticipate any pollution, as the platform had not been drilling and there had been no blowout. "There is no hydrocarbon spill," he said.

The fire had broken out on a facility above the water, at some distance from the wells, he added.

Dave Reed, an oil worker on a platform about 14 miles away, told CNN he could see the smoke and that a call had gone out for ships, helicopters and planes in the region to divert to the area. "It took an hour for the helicopters to get here and all 13 were taken from the water," Reed said.

The alarm was raised by a commercial helicopter flying over the platform. A coastguard spokesman, chief petty officer John Edwards, said: "We were able to confirm that all people were accounted for."

The fire broke out on the platform Vermilion Oil Rig 380, about 90 miles south of the Louisiana Coast and west of the earlier BP explosion that had killed 11 workers.

Both the White House and the coastguard said they did not anticipate any pollution, but that ships equipped with facilities to help clean up spills had been sent to the area as a precaution.

The White House press secretary, Robert Gibbs, said: "We obviously have response assets ready for deployment should we receive reports of pollution in the water." The White House stressed that, unlike the BP rig, the platform was not a deepwater facility and was only working to a depth of 340ft.

BP's attempts to cap its well, which saw hundreds of millions of gallons of oil spill into the Gulf, were bedevilled by the depth at which they had been drilling. They finally capped the well in July.

Mariner is a small company in the process of being taken over by the Apache oil company in a deal worth an estimated $3.9bn (£2.5bn). The deal has not yet been completed. Shares in both companies fell after news of the fire.

• United States
• Oil
• Oil
• Oil and gas companies
• BP oil spill

Reuters - About 45 nations met on Thursday to seek ways to raise billions of dollars in aid to help the poor combat climate change as the United Nations warned them of a long haul to slow global warming.

Scientists say desertification of the mountain grasslands of the Tibetan plateau is accelerating climate change

Like generations of Tibetan nomads before him, Phuntsok Dorje makes a living raising yaks and other livestock on the vast alpine grasslands that provide a thatch on the roof of the world.

But in recent years the vegetation around his home, the Tibetan plateau, has been destroyed by rising temperatures, excess livestock and plagues of insects and rodents.

The high-altitude meadows are rarely mentioned in discussions of global warming, but the changes to this ground have a profound impact on Tibetan politics and the world's ecological security.

For Phuntsok Dorje, the issue is more down to earth. He is used to dramatically shifting cloudscapes above his head, but it is the changes below his feet that make him uneasy.

"The grass used to be up to here," Phuntsok says, indicating a point on his leg a little below the knee. "Twenty years ago, we had to scythe it down. But now, well, you can see for yourself. It's so short it looks like moss."

The green prairie that used to surround his tent has become a brown desert. All that is left of the grasslands here are yellowing blotches on a stony surface riddled with rodent holes.

It is the same across much of this plateau, which encompasses an area a third of the size of the US.

Desertification

Scientists say the desertification of the mountain grasslands is accelerating climate change. Without its thatch the roof of the world is less able to absorb moisture and more likely to radiate heat.

Partly because of this the Tibetan mountains have warmed two to three times faster than the global average; the permafrost and glaciers of the "Third Pole" are melting.

To make matters worse, the towering Kunlun, Himalayan and Karakorum ranges that surround the plateau act as a chimney for water vapour – which has a stronger greenhouse gas effect than carbon dioxide – to be convected high into the stratosphere. Mixed with pollution, dust and black carbon (soot) from India and elsewhere, this spreads a brown cloud across swaths of the Eurasian landmass. When permafrost melts it can also release methane, another powerful greenhouse gas. Xiao Ziniu, the director general of the Beijing climate centre, says Tibet's climate is the most sensitive in Asia and influences the globe.

Grassland degradation is evident along the twisting mountain road from Yushu to Xining, which passes through the Three Rivers national park, the source of the Yangtze, Yellow and Lancang rivers. Along some stretches the landscape is so barren it looks more like the Gobi desert than an alpine meadow.

Phuntsok Dorje is among the last of the nomads scratching a living in one of the worst affected areas. "There used to be five families on this plain. Now we are the only one left and there is not enough grass even for us," he says. "It's getting drier and drier and there are more and more rats every year."

Until about 10 years ago the nearest town, Maduo, used to be the richest in Qinghai province thanks to herding, fishing and mining, but residents say their economy has dried up along with the nearby wetlands.

"This all used to be a lake. There wasn't a road here then. Even a Jeep couldn't have made it through," said a Tibetan guide, Dalang Jiri, as we drove through the area. By one estimate, 70% of the former rangeland is now desert.

"Maduo is now very poor. There is no way to make a living," said a Tibetan teacher who gave only one name, Angang. "The mines have closed and grasslands are destroyed. People just depend on the money they get from the government. They just sit on the kang [a raised, heated, floor] and wait for the next payment."

Many of the local people are former herders moved off the land under a controversial "ecological migration" scheme launched in 2003. The government in Beijing is in the advanced stages of relocating between 50% and 80% of the 2.25 million nomads on the Tibetan plateau. According to state media, this programme aims to restore the grasslands, prevent overgrazing and improve living standards.

The Tibetan government-in-exile says the scheme does little for the environment and is aimed at clearing the land for mineral extraction and moving potential supporters of the Dalai Lama into urban areas where they can be more easily controlled.

Qinghai is dotted with resettlement centres, many on the way to becoming ghettos. Nomads are paid an annual allowance – of 3,000 yuan (about £300) to 8,000 yuan per household – to give up herding for 10 years and be provided with housing. As in some native American reservations in the US and Canada, they have trouble finding jobs. Many end up either unemployed or recycling rubbish or collecting dung.

Some feel cheated. "If I could go back to herding, I would. But the land has been taken by the state and the livestock has been sold off so we are stuck here. It's hopeless," said Shang Lashi, a resident at a resettlement centre in Yushu. "We were promised jobs. But there is no work. We live on the 3,000 yuan a year allowance, but the officials deduct money from that for the housing, which was supposed to be free."

Their situation was made worse by the earthquake that struck Yushu earlier this year, killing hundreds. People were crushed when their new concrete homes collapsed, a risk they would not have faced in their itinerant life on the grasslands. Many are once again living under canvas – in disaster relief tents and without land or cattle.

In a sign of the sensitivity of the subject, the authorities declined to officially answer the Guardian's questions. Privately, officials said resettlement and other efforts to restore the grassland, including fencing off the worst areas, were worthwhile.

"The situation has improved slightly in the past five years. We are working on seven areas, planting trees and trying to restore the ecosystem around closed gold mines," said one environmental officer. The problem would not be solved in the short term. "This area is particularly fragile. Once the grasslands are destroyed, they rarely come back. It is very difficult to grow grass at high altitude."

The programme's effectiveness is questioned by others, including Wang Yongchen, founder of the Green Earth Volunteers NGO and a regular visitor to the plateau for 10 years. "Overgrazing was considered a possible cause of the grassland degradation, but things haven't improved since the herds were enclosed and the nomads moved. I think climate change and mining have had a bigger impact."

Assessing the programme is complicated by political tensions. In the past year, three prominent Tibetan environmental campaigners have been arrested after exposing corruption and flaws in wildlife conservation on the plateau.

Infestation

Another activist, who declined to give his name, said it was difficult to comment. "The situation is complicated. Some areas of grassland are getting better. Others are worse. There are so many factors involved."

A growing population of pika, gerbils, mice and other rodents is also blamed for degradation of the land because they burrow into the soil and eat grass roots.

Zoologists say this highlights how ecosystems can quickly move out of balance. Rodent numbers have increased dramatically in 10 years because their natural predators – hawks, eagles and leopards – have been hunted close to extinction. Belatedly, the authorities are trying to protect wildlife and attract birds of prey by erecting steel vantage points to replace felled trees.

There is widespread agreement that this climatically important region needs more study.

"People have not paid enough attention to the Tibetan plateau. They call it the Third Pole but actually it is more important than the Arctic or Antarctic because it is closer to human communities. This area needs a great deal more research," said Yang Yong, a Chinese explorer and environmental activist. "The changes to glaciers and grasslands are very fast. The desertification of the grassland is a very evident phenomenon on the plateau. It's a reaction by a sensitive ecosystem that will precede similar reactions elsewhere."

Phuntsok Dorje is unlikely to take part in any study. But he's seen enough to be pessimistic about the future. "The weather is changing. It used to rain a lot in the summer and snow in the winter. There was a strong contrast between the seasons, but not now. It's getting drier year after year. If it carries on like this I have no idea what I will do."

Additional reporting by Cui Zheng

• Climate change
• Conservation
• Tibet
• China