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quinta-feira, 25 de dezembro de 2014

sexta-feira, 19 de dezembro de 2014

THE NEW BRAZIL'S FOREST CODE DOES NOT HAVE SERIOUS COMPROMISE WITH SUSTAINABILITY

Reproduced from:Science
Vol. 344 no. 6182 pp. 363-364 
DOI: 10.1126/science.1246663
  • POLICY FORUM
LAND USE

Cracking Brazil's Forest Code

  1. Ane Alencar4

+Author Affiliations

  1. 1Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
  2. 2Woods Hole Research Center, Falmouth, MA 02540, USA.
  3. 3Secretaria de Assuntos Estratégicos da Presidência da República, Brasília, DF 70052-900, Brazil.
  4. 4Instituto de Pesquisa Ambiental da Amazônia, Brasília, DF 71.503-505, Brazil.
  1. *Corresponding author: britaldo@csr.ufmg.br

Roughly 53% of Brazil's native vegetation occurs on private properties. Native forests and savannahs on these lands store 105 ± 21 GtCO2e (billion tons of CO2 equivalents) and play a vital role in maintaining a broad range of ecosystem services (1). Sound management of these private landscapes is critical if global efforts to mitigate climate change are to succeed. Recent approval of controversial revisions to Brazil's Forest Code (FC)—the central piece of legislation regulating land use and management on private properties—may therefore have global consequences. Here, we quantify changes resulting from the FC revisions in terms of environmental obligations and rights granted to land-owners. We then discuss conservation opportunities arising from new policy mechanisms in the FC and challenges for its implementation.

domingo, 14 de dezembro de 2014

PLEASE, GREENPEACE! WITH MESS THINGS WILL BE HARDER!!!

Reproduced from NY Times

CARACAS, Venezuela — An expression of concern by the environmental group Greenpeace about the carbon footprint was marred this week by real footprints — in a fragile, and restricted, landscape near the Nazca lines, ancient man-made designs etched in the Peruvian desert.
The Peruvian authorities said activists from the group damaged a patch of desert when they placed a large sign that promoted renewable energy near a set of lines that form the shape of a giant hummingbird. 



The sign was meant to draw the attention of world leaders, reporters and others who were in Lima, the Peruvian capital, for a United Nations summit meeting aimed at reaching an agreement to address climate change. The meeting was scheduled to end Friday but negotiations were expected to continue into Saturday.
Greenpeace issued a statement apologizing for the stunt at the archaeological site, about 225 miles south of Lima. Its international executive director, Kumi Naidoo, flew to Lima, but the Peruvian authorities were seething over the episode, which they said had scarred one of the country’s most treasured national symbols.
“We are not ready to accept apologies from anybody,” said Luis Jaime Castillo, the vice minister for cultural heritage. “Let them apologize after they repair the damage.”
He added, however, that repair might not be possible. 
Mr. Castillo said that about a dozen activists walked more than a mile through the desert to place the sign, made up of large yellow letters, near the hummingbird, one of the archaeological site’s best known figures. Entry to the area is forbidden.
The lines, etched into the desert more than 1,000 years ago by an ancient culture known today as the Nazca, form enormous figures spanning hundreds of feet, including birds and other animals, plants and geometric shapes. Their purpose remains a mystery but they are believed to have had a ceremonial use. 
Mr. Castillo said that the desert around the lines is made up of white sand capped by a darker rocky layer. By walking through the desert, he said, the interlopers disturbed the upper layer, exposing the lighter sand below. 
“A bad step, a heavy step, what it does is that it marks the ground forever,” he said. “There is no known technique to restore it the way it was.”
He said that the group walked in single file through the desert, meaning that they made a deep track in the ground. Then they spread out in the area where they laid the letters, making many more marks over a wide area. 
“The hummingbird was in a pristine area, untouched,” Mr. Castillo said. “Perhaps it was the best figure.” 
Mr. Castillo said that the culture ministry had sent out a team with drone aircraft equipped with cameras so that they could evaluate the damage without entering the delicate area. 
He said that the harm was both physical and symbolic. 
“This stupidity has co-opted part of the identity of our heritage that will now be forever associated with the scandal of Greenpeace,” he said. 
The sign, made of cloth letters, said, “Time for change! The future is renewable. Greenpeace.” 
A video posted online shows the activists tramping across the desert around dawn, their shoes crunching over the dry ground.
“The impact of climate change is more catastrophic every day,” one of them says to the camera after the sign has been laid out. 
In a written statement the group said it was “deeply sorry.” 
“We fully understand that this looks bad,” the statement said. “Rather than relay an urgent message of hope and possibility to the leaders gathering at the Lima U.N. climate talks, we came across as careless and crass.”
The group said the stunt took place early Monday and involved activists from Argentina, Austria, Brazil, Chile, Germany and Italy. It said they took the letters with them when they left the area. 
The group said it would cooperate with authorities. But on Friday a spokesman in Lima, Mike Townsley, said that the activists involved in the incident had left Peru and that the group had not given their names to government officials. 
Annie Leonard, the executive director of Greenpeace in the United States, said the stunt showed “a complete disregard for the culture of Peru and the importance of protecting sacred sites everywhere.” She added, “It is a shame that all of Greenpeace must now bear.”
Andrea Zarate contributed reporting from Lima, Peru. 

quinta-feira, 11 de dezembro de 2014

WHAT THE HELL IS THAT!?!?!? THE PERUVIAN'S NATURE ARMAGEDDON???

COP20 host Peru claims forest 'leadership' - while attacking forest protectors

AIDESEP / Forest Peoples Programme

Reproduced from www.theecologist.org


Peru's government is actively undermining indigenous peoples' efforts to protect their forests - by refusing to title 20 million hectares of their lands and turning a blind eye to illegal logging. At the same time it's handing out vast concessions for oil, gas, mining and timber exploitation, expanding palm oil production and planning 50 major forest-flooding dams.


A typical riverside indigenous village in the Peruvian Amazon, near Loreto. Photo by
Thomas Stromberg (via Flickr).


Our territory and its resources have become a business to hand over to investors and capitalists. The government creates the protected areas ... but the same government then overlaps these areas with mining and oil concessions.

As negotiators arrive at a crucial UN conference on climate change, a new report shows that, despite public commitments to protect Peru's forests, the first Amazonian host of the UN COP is parcelling out vast areas of forest for destructive exploitation.

At the same time it's failing to safeguard the rights of the main forest protectors - Peru's indigenous peoples - although they occupy approximately one third of the Peruvian Amazon and offer the best chance of defending the country's precious forests.

The report, Revealing the Hidden: Indigenous Perspectives on Deforestation in the Peruvian Amazon, was compiled by Peru's national indigenous peoples' organisation, AIDESEP, and an international human rights organisation, the Forest Peoples Programme (FPP).

The findings are based on the analysis of Peru's indigenous leaders and organisations, whose peoples, lands and livelihoods are threatened by deforestation on a daily basis.

Contrary to official discourses that blame migrant farmers for deforestation, the report suggests that the real drivers of current and future deforestation in Peru - but mysteriously 'invisible' to the government - include road construction, oil, gas and mining projects, palm-oil plantations, illegal logging operations and mega-dam projects.

The report revealed that official analyses of deforestation have placed disproportionate responsibility on migrants from the Andes, while downplaying the crucial role of decades of road construction and explicit colonisation programmes on the part of the government.

These schemes actively promoted immigration and were aimed at the economic integration and agricultural development of the Amazon. As a result, according to the authors, an estimated 75% of deforestation in Peru occurs within 20km of a road.

Indigenous defence of the Amazon undermined 

Meanwhile, the contributions of indigenous peoples, who continue to protect their ancestral lands from invasion by colonists, illegal loggers and miners, are being disregarded or, at worst, undermined.

The threat to indigenous peoples and lands became all too real to Edwin Chota and other leaders of the Ashéninka community of Saweto in Ucayali when they were murdered in September 2014, allegedly by logging mafia, in reprisal for their longstanding efforts to protect their lands from illegal logging and to secure title to their territory.

"It makes me furious", said Marcial Mudarra, the President of CORPI, an indigenous organisation in San Lorenzo, speaking about the murders. 

"Selling off the jungle is a business for the state, but the price is the death of our Ashéninka brothers, who had been denouncing the loggers and protecting their lands. The government closed its eyes and became deaf, blind and dumb. Only when they were dead did it start to take action."

The consistent failure of the Peruvian government to provide protection for Chota in the face of death threats and to legally recognise Saweto's lands despite years of determined advocacy mirrors the experience of many other indigenous communities.

The report shows that the territorial demands of at least 1,174 indigenous communities remain pending, part of an estimated 20 million hectares of indigenous territories with no legal guarantees.

Instead, the Peruvian government continues to approve overlapping mining, timber and oil and gas concessions, and to undermine these territories with laws that violate Peru's human rights obligations.

But indigenous peoples are succeeding nonetheless

Despite such challenges, Peru's indigenous peoples continue to successfully protect their forests. The report documents their diverse efforts to resist land invasions, illegal logging and poaching and the imposition of oil and gas projects.

Many have also embarked on small scale initiatives to produce coffee and cocoa and practise low-intensity logging in harmony with their forests.

The report provides the latest data on deforestation in Peru. As reflected in recent global studies, rates of deforestation in indigenous territories are significantly less than overall deforestation rates, and more than 75% of all deforestation in Peru takes place outside the boundaries of indigenous territories and protected areas.

Although the government has acknowledged the contributions of indigenous peoples to forest conservation, its support for further recognition of indigenous lands and community forestry remains only on paper, while indigenous efforts to protect forests continue to be undermined by weak and contradictory laws and by political persecution.

Ignoring the real drivers of deforestation

The report estimates that, in 2013, at least 20% of deforestation in Peru was attributable to illegal gold mining in Madre de Dios and to oil-palm developments in Loreto and Ucayali.

These rates of deforestation are projected to increase massively, with at least 100,000 hectares of forest in Loreto requested for oil-palm development and over 50 major dams (each more than 100MW in capacity) in planning stages, and threatening to flood thousands of hectares of forest and displace its indigenous inhabitants.

"Despite this huge expansion, oil palm is not discussed much in these debates about deforestation", said Alberto Pizango Chota, President of AIDESEP.

"It is 'invisible', just like the massive oil spills, the multiple dams that are planned, the super highways, the gold rush and the timber mafia. This official silence shows the need for this study - the need to make visible what is not spoken and to expose what is hidden."

For indigenous peoples, who live in and depend on these forests, the impacts of this development model are often devastating, as shown by the health and environmental disasters recently declared in the Tigre, Corrientes, Maranon and Pastaza river basins, after 40 years of oil operations.

Corruption and criminality at the heart of government

Many of the new developments are taking place at the behest of powerful criminal organisations, often associated with corrupt government officials.

For example, a senior figure at the Ministry of Energy and Mines was exposed in 2012 for his part-ownership of a major gold exporter, which was sourcing gold from Madre de Dios, where an estimated 97% of all mining is illegal.

"In the La Pampa area, 30,000 miners are controlling the military commanders, the police and the judges", said a leader of COHARIYMA, an indigenous organization in Madre de Dios. "The police earn miserable wages, yet now they have big houses and luxury 4-by-4s. Officials pretend they're intervening, but in reality they do nothing."

The report identifies systematic bias in Peru's land-use planning, which consistently favours large-scale extractive developments, particularly oil, gas and mining projects over environmental considerations and the rights of local communities and indigenous peoples.

This is exemplified by the reduction of the Ichigkat-Mujat National Park in favour of mining interests in 2007, says Teobaldo Chamik, a Wampis leader from the Santiago River:

"MINAM [the Ministry of Environment] was created with the objective of protecting the forest but instead it is bargaining with these resources. Our territory and its resources have become a business to hand over to investors and capitalists. The government creates the protected areas ... but the same government then overlaps these areas with mining and oil concessions."

A genuine commitment?

As host to the COP20 Conference of the Parties to the UN Framework Convention on Climate Change, now under way, Peru is hoping to establish itself as a leading player in the fight to protect tropical forests and indigenous peoples' rights as part of a broader commitment to mitigating climate change.

Indeed, the country has made unprecedented public commitments in recent years to protect its forests, including a pledge in 2010 to cut net deforestation to zero by 2020.

President Humala reiterated this pledge in September 2014 and announced a major agreement with Germany and Norway to finance and support this vision.

Nevertheless, the announcement came hot on the heels of a law (Ley 30230) passed in July to promote investment, while significantly weakening Peru's already feeble environmental laws. More seriously, the new measure seems to allow the seizure of indigenous lands in order to facilitate large-scale development projects.

If Peru's government really cares, here's what it must do

The report outlines key steps that could be taken to address deforestation and the violation of indigenous peoples' rights. These include:

  • Resolve indigenous peoples' territorial demands, alongside respecting their right to determine their own development paths,
  • Provide legal, financial and technical support to implement this vision. 
  • Close legal loopholes that continue to permit forest destruction, controlling illegal practices, and 
  • Implement robust and independent planning mechanisms to ensure economic interests do not trump all other considerations.


"Peru is at a crossroads"
, said lead author Michael Valqui from the University of Cayetano Heredia's Centre for Sustainability. "The pledges have been made, the solutions exist, and the funds are available, but the will appears to be missing, as long as the government continues to ignore the real causes of forest destruction."

Sadly, Peru is by no means a unique example. A detailed assessment of nine countries reveals a growing crisis in the world's forests, and a spike in violations of the rights of indigenous peoples and forest-dependent communities.

The findings suggest that climate change mitigation and conservation policies must place community land rights and human rights centre stage if they are to achieve the goal of effectively and sustainably reducing deforestation.

A review of the findings will be launched in Lima today, 8th December, at a hearing in the presence of the UN rapporteur on the rights of indigenous peoples.

 


 

The report: Revealing the Hidden: Indigenous Perspectives on Deforestation in the Peruvian Amazon was compiled by Peru's national indigenous peoples' organisation, AIDESEP, and the Forest Peoples Programme.

 

 



quarta-feira, 10 de dezembro de 2014

A RUSSIAN BILLIONAIRE RECOGNIZES THE 'REAL VALUE' OF SCIENCE PRACTISED IN ENGLAND

DNA scientist to get back sold Nobel

From BBC News


Russia's richest man has revealed that he bought US scientist James Watson's Nobel Prize gold medal, and intends to return it to him.

Steel and telecoms tycoon Alisher Usmanov said Mr Watson "deserved" the medal, and that he was "distressed" the scientist had felt forced to sell it.

The medal, awarded in 1962 for the discovery of the structure of DNA, sold for $4.8m (£3m) at auction.

The medal was the first Nobel Prize to be put on sale by a living recipient.

The 1962 prize was awarded to Watson, along with Maurice Wilkins and Francis Crick, with each receiving a gold medal.

Mr Watson, 86, has said he planned to donate part of the proceeds to charities and to support scientific research.

In an interview with the Financial Times recently, Mr Watson said he had been made to feel like an "unperson"feel like an "unperson" since a Sunday Times interview seven years ago in which he linked race to intelligence.

Mr Usmanov said in a statement that he was the anonymous telephone bidder who bought the medal at a Christie's auction last week.

"In my opinion, a situation in which an outstanding scientist has to sell a medal recognising his achievements is unacceptable," he added.

"James Watson is one of the greatest biologists in the history of mankind and his award for the discovery of DNA structure must belong to him."

Mr Usmanov, said by Forbes magazine to be worth $15.8bn, is a major shareholder in Arsenal football club and was named Britain's wealthiest man in the Sunday Times rich list for 2013.


segunda-feira, 8 de dezembro de 2014

80% RISE OF FARMING EMISSIONS THANKS TO MEAT

Tim Radford

The increase in meat and dairy consumption is set to cause huge increases in greenhouse gases, reports Tim Radford. A shift to less animal-based diets would cut greenhouse gases, conserve forests and grasslands - and make us all healthier, with reduced obesity, diabetes and associated conditions.

The worldwide trend towards a Western-style diet rich in meat and dairy produce will lead to an 80% increase in greenhouse gas emissions (GHGs) from agriculture.
And since agriculture already accounts for 25% of all emissions, two US scientists argue in the journal Nature that a shift away from the trend towards steak, sausage, fried potatoes and rich cream puddings offers tomorrow's world three palpable rewards:
  • greenhouse gas emissions would be reduced;
  • reduced pressure to clear forests and savannah for farmland, so biodiversity would be conserved;
  • lower rates of disease linked with obesity and cardiovascular hazard.
If the world were to adopt variations on three common diets, health would be greatly increased at the same time global GHGs were reduced by an amount equal to the current GHGs of all cars, trucks, planes, trains and ships.

The worldwide trend towards a Western-style diet rich in meat and dairy produce will lead to an 80% increase in greenhouse gas emissions (GHGs) from agriculture.

And since agriculture already accounts for 25% of all emissions, two US scientists argue in the journal Nature that a shift away from the trend towards steak, sausage, fried potatoes and rich cream puddings offers tomorrow's world three palpable rewards:

  • greenhouse gas emissions would be reduced;
  • reduced pressure to clear forests and savannah for farmland, so biodiversity would be conserved;
  • lower rates of disease linked with obesity and cardiovascular hazard.


"The implementation of dietary solutions to the tightly-linked diet-environment-health trilemma is a global challenge, and opportunity, of great environmental and public health importance"
, the report's authors say.

For example, GHGs from beef or lamb per gram of protein are about 250 times those from a serving of peas or beans.

It's not that great for us, either

And in China, the shift from traditional cuisine towards a Western-style diet rich in refined sugars, refined oils, meat and processed foods led to the incidence of type II diabetes rising from less than 1% in 1980 to 10% in 2008.

To put this greener, more sustainable world on the scientific menu, David Tilman, professor of ecology at the University of Minnesota, and Michael Clark, graduate science student at the Bren School of Environmental Science and Management, University of California Santa Barbara, simply looked at the already published evidence.

They identified 120 separate analyses of the GHGs from the entire life cycle of crop, livestock, fishery and aquaculture, all the way to the farm gate.

These analyses embraced a total of 550 studies, involving 82 types of food plant and animal products, and from all this they were able to calculate the diet-related emissions per gram of protein, per kilocalorie and per serving.

To confirm the connection between diet and health, they looked again at 18 studies based on eight long-term population studies that incorporated 10 million person-years of observation.

They used 50 years of data about the dietary habits and trends in 100 of the world's most populous nations to see the way food consumption patterns were changing.

A 'healthy planet' diet is a 'healthy human' diet

And they confirmed something that nutritionists, health chiefs and medical advisers have been saying for decades: that a shift to vegetarian, traditional Mediterranean or fish-based diets could only be good.

"We showed that the same dietary changes that can add about a decade to our lives can also prevent massive environmental damage", Professor Tilman said.

"In particular, if the world were to adopt variations on three common diets, health would be greatly increased at the same time global GHGs were reduced by an amount equal to the current GHGs of all cars, trucks, planes, trains and ships.

"In addition, this dietary shift would prevent the destruction of an area of tropical forests and savannahs of an area half as large as the United States."

Such a shift away from the calorie-rich Western omnivore diet could reduce the incidence of type II diabetes - a condition notoriously linked to diet and obesity - by about 25%, cancer by about 10%, and death from heart disease by about 25%.

The close link between meat production and GHGs has been reported before. Researchers have also stressed the environmental value of a diet rich in grains and legumes. rather than meat and dairy.

Not everybody will agree with the detail of their analysis. Other scientists have argued that - in the US, at least - healthy diet recommendations may not make a big difference to GHGs, or might even lead to an increase in them.

On our present course, agriculture emissions set to soar 80%

And because the authors specifically identify trawling for fish as wasteful, destructive and costly in emissions, and because ocean waters are becoming more acidic because of GHG emissions, a planetary switch to a pescatarian or fish and seafood diet is likely to be problematic.

But the two scientists nevertheless are clear on the main point. GHGs are, they say, "highly dependent on diet".

Between 2009 and 2050, the global population will increase by 36%. People will also become better off, and their appetites and demands will grow.

"When combined with a projected increase in per capita emissions from income-dependent global dietary shifts", they say, "the net effect is an estimated 80% increase in global greenhouse gas emissions from food production."

This 80% would represent 1.8 billion tonnes per year of carbon dioxide or its equivalent - which was the total emissions from all forms of global transport in 2010.

By contrast, they say, "there would be no net increase in food production emissions if, by 2050, the global diet had become the average of the Mediterranean, pescatarian and vegetarian diets."

 


 

Tim Radford writes for Climate News Network.

 

 

domingo, 7 de dezembro de 2014

SEALS IN A LAZY AND INTIMATE FOOTAGE

Reproduced from BBC News

HOW CAN HUMAN BEINGS SURVIVE IN SUCH CONDITIONS???

Africa 'soil crisis threat' to future

By Mark Kinver

Environment reporter, BBC News 




 

Neglecting the health of Africa's soil will lock the continent into a cycle of food insecurity for generations to come, a report has warned.

The publication by the Montpellier Panel said the problem needed to be given a higher priority by aid donors.

It added that soil degradation was also hampering economic development, costing the continent's farmers billions of dollars in lost income.

The study has been published ahead of the 2015 international year of soils.

The Montpellier Panel - made up of agricultural, trade and ecology experts from Europe and Africa - warned that land degradation reduced soil fertility, leading to lower crop yields and increased greenhouse gas emissions.

"In Africa, the impacts are substantial where 65% of arable land, 30% of grazing land and 20% of forests are already damaged," it observed.

Panel chairman Sir Prof Gordon Conway, from Imperial College London, told BBC News: "We spend a lot of time talking about crops and we spend a lot of time talking about livestock. We have big debates about all kinds of agriculture, yet we tend to ignore that it all depends on soils."

He added that recent measurements had shown that soil degradation levels across the continent were very high.

"Serious land degradation [accounts for] about a quarter of land area of sub-Saharan Africa - it is a vast area," he said.

"There are about 180 million people who are living on land that is in some way or another degraded. It is really very severe."

The problem threatened food production in a region that was already experiencing very low crop yields, he explained.

"The average yield in sub-Saharan Africa is about one tonne per hectare. In India, it is about two-and-a-half tonnes, while in China it is more than three tonnes per hectare.

"So in Africa, we have the combination of land degradation, poor yields and a growing population."

'Global priority'

Sir Gordon described the issue as a "crisis of land degradation and soil management", adding: "We have got to do something about it".

The panel made a number of recommendations, including:

• Strengthening political support for land management

• Increase financial support for investment in land and soil management

• Attribute a value to land degradation

• Create incentives, especially sure land rights

• Build on existing knowledge and resources

The report said the panel's members believed that soil was the "cornerstone of food security and agricultural development and its care, restoration, enhancement and conservation should intuitively become a major global priority".

Sir Gordon added: "Africa already imports US $40bn worth of food each year, it is an enormous amount. If we do not produce more food in Africa, that will get worse and worse, and the continent will suffer as a result.

"Secondly, if we do not pay attention to land degradation in Africa then the land itself will continue to degrade and that will further reduce the yields we are getting at the moment.

"We know what you have to do to improve the quality of soil, but the big challenge is providing the funds and making sure that there are incentives for farmers.

"Farmers will not invest in their land unless they have land tenure. In many cases, they cannot afford to invest in their land so there needs to be public money available.

"In South-East Asia, the great irrigation schemes that have provided much of the food security in the region were publicly funded."

BBC © 2014

quinta-feira, 4 de dezembro de 2014

THE GOVERNMENT REPORTS ON DEFORESTATION IN THE AMAZON AT ITS CONVENIENCE

In the late afternoon of Friday (28) INPE (Space Research Institute) released the results of the "DETER" (Real-time Deforestation Detection)  for the months of August, September and October 2014. The results, already reported by Folha de S. Paulo on November 11, confirms a strong acceleration in deforestation, with alerts that indicate a total area lost to 171% this quarter, compared to the same quarter of the previous year. The graph below shows the "desmatamento" (deforestation) from August to October in the years 2013 and 2014.
[As reported on www.oeco.org.br]


The delay in full electoral campaign for President of Brazil created the suspicion that the Government wanted to hide an increase. Then came the good news of the fall of the annual result. But we must bear in mind that have been deforested 4,848 km2 (more than three times the size of the city of São Paulo).
In August 2014, there was 890.2 km2, deforestation alert against 288.6 km2 in August 2013; in September 736 km2, against 442.85 km2; in October, the number stood at 297.9 km2, against 154.79 km2.

The main cause of deforestation is the opening of areas for livestock.

IN LONDON THE AIR IS GREY!

Reported by THE EVENING STANDARD


John Lehan, an engineer, purchased the mask after suffering from a cough and irritable throat as he cycled to his office in Old Street, east London.

He wore the mask for three days as he made his way from Enfield to his workplace, cycling for about 60 miles in total, in April. 

But when Mr Lehan looked at filters inside the masks, designed to trap harmful particulates, he was shocked to find them completely blackened by pollution.

The results left Mr Lehan so concerned for his health he decided to stop cycling to work and commute by train instead.

He continued to wear the mask for the journey, which included underground travel for the final 10 minutes, and was horrified to find the mask filters were even filthier after a week of travelling.

Mr Lehan, who is also a triathlete, has since completely changed his commute to include no underground travel because of health concerns.

The 30-year-old said: “When I was cycling to work after a week I would be coughing and have a sore throat at night. I was beyond belief that is what I was doing to myself.

“It is not just cycling specific problem, it is something that affects everybody – people travelling all over London and on the pavement in Oxford Street.

“You can’t actually see the air pollution and know how bad it is.

“I think the biggest problem is the buses and taxis. What I think London needs to do is to take really radical steps.”

Mr Lehan, alongside other air pollution campaigners, is calling on the Mayor of London to increase greener buses on the streets and build taxis with hybrid engines.

Matthew Pencharz , senior environment and energy adviser to the Mayor, said: “The Mayor is leading the most ambitious and comprehensive package of measures in the world to improve London’s air quality, an urgent challenge which affects the health and well-being of all Londoners. 

“At the heart of his plans is the world’s first Ultra Low Emission Zone in central London from 2020. Already, progress is being made. Unlike many cities, we have met EU rules on particulate matter. The number of Londoners living in areas above nitrogen dioxide (NO2) limits has halved since 2008.”

quarta-feira, 3 de dezembro de 2014

ISN'T IT A PITY. BUT IT'S NOT THE NICE GEORGE HARRISON'S SONG...

...it's an enviromental tragedy!!!

Major deltas 'could be drowned'


BBC News



 

Sea-level rise and river engineering "spell disaster" for many of the world's river deltas, say scientists.

Half a billion people live in deltas, but the newly published research suggests many of these areas are set to be inundated by rising seas.

Some of the lowest lying, including the Mekong and Mississippi, are particularly vulnerable.

The paper is published in the journal Nature.

Lead researcher Dr Liviu Giosan, from Woods Hole Oceanographic Institution in Massachusetts, said dams and other river engineering had exacerbated the problem by reducing the amount of sediment rivers could carry.

In an article he said was "a call to action before it's too late", Dr Giosan said rivers were losing the fight between land and sea.

"Rivers produce sediment by eroding the land, and the sea [washes away] that sediment," he told BBC News.

A delta is the result of a river producing sediment faster than the sea can remove it, resulting in expanses of fertile, flat land. These are home to some of our most sprawling megacities, including Shanghai, Dhaka and Bangkok.

And where they are left pristine, they are also sites of great biodiversity. One of the world's better preserved deltas, for example - the Danube - is the most extensive wetland in the European Union and a global biodiversity hotspot.

Although the UK has estuarine areas - where rivers flow into brackish coastal areas that have an open connection to the sea - these do not produce enough sediment or flow out on to large enough flats to build a delta.

Battling the sea

Dr Giosan and his colleagues used historical measurements of sediment deposits from delta-building rivers and compared them with the sediment needed to keep up with projected sea level rise in the 21st Century.

This suggested that most large and medium-sized deltas would lose the fight with the sea - unable to "trap sufficient sediment" to remain above sea level.

"All deltas will be affected and their area will be reduced," said Dr Giosan.

"But lower lying deltas such as the Mekong, Mississippi or Danube will be more extensively inundated than others if maintenance measures are not stepped up."

These measures, he said, included building better dams and modifying old ones "to let more sediment reach deltas".

"We can trap more sediment in the delta rather than let it waste in the ocean, [and] we can support marshes to keep up with sea-level rise," Dr Giosan told BBC News.

"Investment now in these activities will let nature - the river, beaches, marshes and mangroves - adapt on their own to the sea-level rise and keep deltas alive at little cost."

Dr Giosan and his colleagues are calling for the United Nations to establish an international body of experts to coordinate delta-maintenance initiatives worldwide.

The costs of doing nothing, he said, would be huge, with vast areas of land underwater, harbours unable to allow shipping and rich agricultural land destroyed by salt.

"We [would] lose biodiversity, ecological services, damage economies and trade, and force people to migrate by not planning ahead."

Prof Paul Whitehead, an expert in river dynamics, from the University of Oxford, said the article was "fascinating" and summarised some key findings in deltas around the world.

"My experience of working in the Ganges-Brahmaputra-Meghna Delta in Bangladesh is that the same processes are at work," he told the BBC.

"Over half the world's population live in flood plains or in deltas - that is why it is so important."

BBC © 2014

Isn't it a pity. Watch it on:  http://youtu.be/SY21jdwM9CI