World environment ministers signal resolve to realize sustainable development

In the first landmark Declaration issued by ministers of the environment in a decade, governments pledged to step up the global response to the major environmental and sustainability challenges of this generation.

The wide-ranging Nusa Dua Declaration, agreed today in the closing session of the UN Environment Programme's (UNEP) Governing Council/Global Ministerial Environment Forum, underlines the vital importance of biodiversity, the urgent need to combat climate change and work towards a good outcome in Mexico later in the year and the key opportunities from accelerating a transition to a low-carbon resource-efficient Green Economy.

Controllable rubber trailing edge flap for wind turbine blades

The photograph shows the two sensors for measuring wind speed and direction. The nearest sensor resembles a small blade, and by measuring the wind load on the sensor, a control signal can be derived and sent to the rubber trailing edge. The other sensor is a so-called five-hole pitot tube, which can measure wind speed and wind direction, and which can also be used to control the rubber trailing edge. For some years, the Wind Energy Division at Risø DTU has been working to develop a method for controlling the loads on large wind turbine blades using a flexible trailing edge made of an elastic material which can be controlled by means of compressed air or hydraulics. Now, the invention, which has been called CRTEF (Controllable Rubber Trailing Edge Flap), has been tested in a wind tunnel with promising results.

Today’s wind turbine blades, which can measure more than 60 metres in length, are subjected to enormous loads, which means that a blade can flex as much as 4-6 metres during strong gusts. However, the blades are also so long that there can be considerable differences in the loading from the gusts along the blade. In wind farms, surrounding wind turbines also exert considerable influence and generate turbulence, which has a more localised effect.

Ice shelves disappearing on Antarctic peninsula

Ice shelves are retreating in the southern section of the Antarctic Peninsula due to climate change. This could result in glacier retreat and sea-level rise if warming continues, threatening coastal communities and low-lying islands worldwide.

Research by the U.S. Geological Survey is the first to document that every ice front in the southern part of the Antarctic Peninsula has been retreating overall from 1947 to 2009, with the most dramatic changes occurring since 1990. The USGS previously documented that the majority of ice fronts on the entire Peninsula have also retreated during the late 20th century and into the early 21st century.

University of Oklahoma geologists look for answers in Antarctica

Focusing on a controversial hypothesis that ice existed at the equator some 300 million years ago during the late Paleozoic Period, two University of Oklahoma researchers originated a project in search of clues to the Earth’s climate system.

“The Paleozoic Period was a rare time in history,” says Gerilyn Soreghan, OU professor of geology. “Broadly speaking, it was the last time our planet experienced the type of climate system we have today and in the recent past.” Soreghan believes comparing more modern systems in a range of different climates might help support her hypothesis.

Ancient DNA reveals caribou history linked to volcanic eruption

DNA recovered from ancient caribou bones reveals a possible link between several small unique caribou herds and a massive volcanic eruption that blanketed much of the Alaskan Yukon territory in a thick layer of ash 1,000 years ago, reports research published today in Molecular Ecology.
It's just part of the story being read from ancient caribou remains by an international team of scientists from the U.S., U.K. and Canada who have been studying the history of this iconic and fragile Canadian species.

Tyler Kuhn, a Whitehorse native and Simon Fraser University graduate researcher, were able to coax short bits of ancient DNA from caribou bones found in 6,000-yr-old ice patches scattered across an area just north of the British Columbia border.

Waste could generate up to 7 per cent of electricity in Spain

Sewage treatment plant of Monfragüe (Cáceres, Spain).

Credit: Naturaleza Fragüe.
Researchers from the University of Zaragoza (UNIZAR) have calculated the energy and economic potential of urban solid waste, sludge from water treatment plants and livestock slurry for generating electricity in Spain. These residues are alternative sources of renewable energy, which are more environmentally friendly and, in the case of solid urban waste, more cost effective.

Using waste to generate electricity has economic and environmental advantages. "It gives added value to waste, because it can be seen as a type of fuel with zero cost, or even a negative cost if taxes are paid to collect it", Norberto Fueyo, lead author of the study and a researcher at the Fluid Mechanics Group of the UNIZAR, tells SINC.

Food Dictatorship Vs. Food Democracy

Dr Vandana Shiva. Photo Credit: Documentary.orgAn International conference on “Two Decades of the GMO Free Movement” was organized by Navdanya / Research Foundation for Science, Technology & Ecology in association with the International Commission on the Future of Food, ARSIA, Region of Tuscany, Italy, Center for Food Safety, USA, Save Our Seeds, Germany, Diverse Women for Diversity and Initiative for Health, Equity and Society on February 23, 2010 at India International Centre.

Ever since giant corporations like Monsanto started to commercialize GMO crops and foods, citizens and governments across the world have organized to keep their food and agriculture GMO free.

More Americans ‘dismissive’ and fewer ‘alarmed’ about global warming

Researchers at Yale and George Mason Universities have identified six distinct “Americas” when it comes to the issue of global warming. One of these groups, the “Dismissive,” who believe global warming is not happening and is probably a hoax, has more than doubled in size since 2008 and now represent 16 per cent of the American public, according to the report, Global Warming’s Six Americas, January 2010.

Meanwhile, the per centage of the “Alarmed”—Americans who are the most convinced that global warming is happening, is caused by humans and is a serious and urgent threat—has dropped from 18 per cent in 2008 to 10 per cent.

Free trade, loss of support systems crippling food production in Africa

Despite good intentions, the push to privatize government functions and insistence upon “free trade” that is too often unfair has caused declining food production, increased poverty and a hunger crisis for millions of people in many African nations, researchers conclude in a new study.

Market reforms that began in the mid-1980s and were supposed to aid economic growth have actually backfired in some of the poorest nations in the world, and just in recent years led to multiple food riots, scientists report in Proceedings of the National Academy of Sciences, a professional journal.

New insights into helping marine species cope with climate change

Move, adapt or die. Those are the options marine plants and animals have in the face of climate change, said Stanford biologist Steve Palumbi, who has been exploring how to help them go with the first two options, rather than the third. He's come up with some surprising answers.

Palumbi will be discussing the results of his research in two talks at the annual meeting of the American Association for the Advancement of Science in San Diego.

Dolphins' health shed light on human and ocean health

The Georgia Dolphin Health Assessment capture-release study provides information on the health of the wild dolphin population that inhabits estuaries along the Georgia coast.
Credit: Brian Balmer, Sarasota Dolphin Research Programn
Scientists discover clues into human diseases by studying dolphins in a changing ocean

A panel of governmental, academic and non-profit scientists speaking today at the annual meeting of the American Association for the Advancement of Science (AAAS) unveiled research suggesting that diseases found in dolphins are similar to human diseases and can provide clues into how human health might be affected by exposure to contaminated coastal water or seafood.

"Dolphins and humans are both mammals, and their diet includes much of the same seafood that we consume. Unlike us, however, they are exposed to potential ocean health threats such as toxic algae or poor water quality 24 hours a day," said Carolyn Sotka of the NOAA Oceans and Human Health Initiative and lead organizer of the session. "Our ecological and physiological similarities make dolphins an important 'sentinel species' to not only warn us of health risks, but also provide insight into how our health can benefit from new medical discoveries."

Orange peels, newspapers may lead to cheaper, cleaner ethanol fuel

Scientists may have just made the breakthrough of a lifetime, turning discarded fruit peels and other throwaways into cheap, clean fuel to power the world's vehicles.

University of Central Florida professor Henry Daniell has developed a groundbreaking way to produce ethanol from waste products such as orange peels and newspapers. His approach is greener and less expensive than the current methods available to run vehicles on cleaner fuel – and his goal is to relegate gasoline to a secondary fuel.

Understanding the threat to monkey numbers from forest decline

Monkey populations in threatened forests are far more sensitive to damage to their habitat than previously thought, according to new research.
An analysis of monkeys living in Tanzania’s Udzungwa Mountains suggests that the impact of external factors, such as human activity, on species numbers is felt in forests as large as 40 square kilometres.

Researchers also found that the health of monkey populations is closely related to the type of habitat found between forest fragments, rather than the distance that separates them.

More, better biodiesel

The safflower is one of the plants can be made into a fuel cocktail that performs better at low temperatures than conventional biodiesel. (Jack Kelly Clark/UC Division of Agriculture and Natural Resource) Yields of biodiesel from oilseed crops such as safflower could be increased by up to 24 percent using a new process developed by chemists at UC Davis. The method converts both plant oils and carbohydrates into biodiesel in a single process, and should also improve the performance characteristics of biodiesel, especially in cold weather.

A paper describing the method, which has been patented, is online in the journal Energy & Fuels.

Conventional biodiesel production extracts plant oils and then converts them into fatty acid esters that can be used to power engines, said Mark Mascal, professor of chemistry at UC Davis and co-author of the paper with postdoctoral researcher Edward Nikitin. That leaves behind the carbohydrate portion of the plant — the sugars, starches, and cellulose that make up stems, leaves, seed husks and other structures.

Food allergies: The enemy within

The guidance document is the result of several years of negotiation by a high-level collaboration of experts from regulatory agencies representing Canada, USA, Australia, Japan, the European Union, academic research institutions, and food allergen test-kit manufacturers, under the auspices of the AOAC (Association of Analytical Communities) Presidential Taskforce on Food Allergens.

For the first time, national authorities carrying out official food allergen controls have a common basis for accepting validated testing methods. Consumers allergic to certain food ingredients will benefit from an increased level of protection by the availability of harmonised and reliable testing methods, and international trade will be facilitated by applying mutually-agreed testing protocols.

A second hydrocarbon boom threatens the Peruvian Amazon

A rapid and unprecedented proliferation of oil and gas concessions threatens the megadiverse Peruvian Amazon. The amount of area leased is on track to reach around 70% of the region, threatening biodiversity and indigenous people. This is one of the central conclusions from a pair of researchers from the Institut de Ciència i Tecnologia Ambientals (ICTA) of Universitat Autònoma de Barcelona (UAB), and the Washington DC-based NGO Save America's Forests, who have, for the first time, documented the full history of hydrocarbon activities in the region and made projections about expected levels of activity in the near future.

The study, conducted by Martí Orta and Matt Finer, researchers at ICTA and Save America's Forests, respectively, and published in Environmental Research Letters, reconstructs the full history of hydrocarbon activities in the region and makes projections for the next five years. Researchers have found that more of the Peruvian Amazon has recently been leased to oil and gas companies than at any other time on record.

Global warming may hurt some poor populations

The impact of global warming on food prices and hunger could be large over the next 20 years, according to a new Stanford University study. Researchers say that higher temperatures could significantly reduce yields of wheat, rice and maize – dietary staples for tens of millions of poor people who subsist on less than USD1 a day. The resulting crop shortages would likely cause food prices to rise and drive many into poverty.

But even as some people are hurt, others would be helped out of poverty, says Stanford agricultural scientist David Lobell.

Roots key to second Green Revolution

Root systems are the basis of the second Green Revolution, and the focus on beans and corn that thrive in poor growing conditions will help some of the world's poorest farmers, according to a Penn State plant scientist.

"Africans missed the Green Revolution of the '60s because they typically do not eat wheat and rice, which was its focus," said Jonathan Lynch, professor of plant nutrition.

Nanotechnology could help Arab region

"Nanotechnology could aid the future of development of the Arab region," says Mohamed H.A. Hassan, executive director of TWAS, the academy of sciences for the developing world, and president of the African Academy of Sciences. Hassan made his remarks at a panel session, "Re-emergence of Science, Technology and Education as Priorities in the Arab World," taking place at the AAAS's annual meeting in San Diego.

"The Arab region, home to some 300 million people, faces a host of daunting development challenges," Hassan notes. "Three of the most fundamental involve ensuring adequate supplies of water, energy and food." Advances in nanotechnology, he says, "could help achieve progress by helping to address each of these challenges."

Understanding global climate change through new breakthroughs in polar research

The latest findings from research on Antarctica's rich marine life are presented this week at the American Association for the Advancement of Science

The latest findings from research on Antarctica's rich marine life are presented this week at the American Association for the Advancement of Science (AAAS). Marine Biologist Huw Griffiths from British Antarctic Survey (BAS) is involved in a major international investigation into the distribution and abundance of Antarctica's vast marine biodiversity – the Census of Antarctic Marine Life (CAML).

Griffiths presents results from the census – which began in 2005 – and describes how the investigation provides the benchmark for future studies on how the extraordinary and diverse range of sea-floor creatures living in Antarctica's chilly waters will respond to predicted environmental change.

Fueling the future with fish tank residue

As Americans demand new and cleaner ways to meet the country's energy needs, researchers are turning to algae as a promising new fuel source. The approach has the potential to significantly reduce the nation's reliance on imported oil while contributing to rural economic development and lowering greenhouse emissions.

Experts project that algae-based biofuels could displace large volumes of diesel and jet transportation fuels. One of the field's leading experts, Sandia researcher Ron Pate, will present an overview of the current state of research and development and associated opportunities and challenges for algal biofuels during the annual meeting of the American Association for the Advancement of Science in San Diego on Feb. 19.

Fungal fumes clear out crop pests

A cocktail of compounds emitted by the beneficial fungus Muscodor albus may offer a biologically based way to fumigate certain crops and rid them of destructive pests. That’s the indication from Agricultural Research Service (ARS) studies in which scientists pitted Muscodor against potato tuber moths, apple codling moths and Tilletia fungi that cause bunt diseases in wheat. The scientists—at ARS laboratories in Aberdeen, Idaho; Wapato, Wash., and other locations—conducted separate studies of Muscodor. However, their goal was the same: to learn whether volatile organic compounds (VOCs) released by the fungus could replace or diminish the use of synthetic pesticides.

In field trials conducted since 2007, ARS plant pathologist Blair Goates found that treating wheat seed or the soil with a formulation of Muscodor and ground rye completely prevented common bunt under moderate disease conditions. Caused by the fungus T. tritici, common bunt reduces wheat yields and grain quality.

Rwanda named global host of World Environment Day 2010

Rwanda, the East African country that is embracing a transition to a Green Economy, will be the global host of World Environment Day 2010, the United Nations Environment Programme (UNEP) announced today.

World Environment Day (WED)
, which aims to be the biggest global celebration for positive environmental action, is coordinated by UNEP every year on 5 June.

CryoSat to observe Earth's ice cover

The European Space Agency is about to launch the most sophisticated satellite ever to investigate the Earth's ice fields and map ice thickness over water and land: lift-off scheduled for 25 February.

ESA's ice mission satellite CryoSat will be placed into orbit 700 km above Earth by a Russian Dnepr rocket to be launched from the Baikonur Cosmodrome in Kazakhstan.

Plant buffers may limit spread of antibiotics in animal waste

This photo shows buffer strips of grass and trees adjacent to cornfields at MU Greenley Center | Credit: Kristen VeumResearch by scientists at the University of Missouri Center for Agroforestry suggests that buffer strips of grasses and other plants can trap and break down veterinary antibiotics in manure fertilizers.

Buffer strips have already demonstrated that they can be effective in protecting water quality, controlling erosion and supporting wildlife around crop fields.

Decade-old dream comes true for Lake Chad

World Wetlands Day is being celebrated with the full recognition of Africa’s Lake Chad as a wetland of international significance, fulfilling an agreement made a decade ago by the four nations that share it.

The declaration by the Cameroon Republic that its portion of Africa’s fourth largest lake is being declared a wetland of international importance under the 1971 Ramsar Convention on Wetlands follows similar declarations by Niger and Chad (both in 2001) and Nigeria (2008).

Energy consumption monitors installed in two residential colleges

c a p t i o nMonitors that will provide students with real-time information about energy consumed have been installed in Yale’s Pierson and Silliman residential colleges, the Yale Office of Sustainability has announced.

Accompanied by an educational campaign about residential energy consumption at Yale and nationwide, the monitors aim to provide students with direct and immediate awareness of the effects of their consumption decisions. Designed by Lucid Design Group, the system displays real-time data on energy used for electricity, heating, and cooling. Large, interactive touch-screen monitors that have been installed near the Pierson and Silliman dining halls allow viewers to see energy consumption patterns over time, compare between colleges, and display in unit equivalencies such as gallons of gasoline, hours of use for hairdryers, microwaves and laptops as well as the monetary. The information is also available online through a live website at: www.yale.edu/energydashboard.

Study reveals dangers of nicotine in third-hand smoke

Berkeley Lab chemists Lara Gundel and Hugo Destaillats led a research team that revealed the potential health hazards posed by residual nicotine in third-hand smoke when it reacts with ambient nitrous acid. (Photo by Roy Kaltschmidt, Berkeley Lab Public Affairs)Nicotine in third-hand smoke, the residue from tobacco smoke that clings to virtually all surfaces long after a cigarette has been extinguished, reacts with the common indoor air pollutant nitrous acid to produce dangerous carcinogens. This new potential health hazard was revealed in a multi-institutional study led by researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab).

'Smart Grids' – climate infrastructure for the 21st century

There's no need to worry that renewable energy can't keep the lights on, concludes a new study by Greenpeace and the European Renewable Energy Council (EREC).

The report: Renewables 24/7 – Infrastructure needed to save the climate shows how the world’s power grids could be transformed to support a power mix comprising 90% renewable energy by 2050. The transformation would be achieved at a modest level of investment, presents a huge market opportunity for ICT companies, and would enable huge cuts in greenhouse gas emissions.

Storm runoff and sewage treatment outflow contaminated with household pesticides

The combined flow of Chicken Ranch and Strong Ranch Sloughs as they enter the American River (in background) in Sacramento, Calif. Water in the sloughs at the time of this photo contained 10 times the concentration of pyrethroids necessary to kill the test organism used for monitoring (Donald Weston/UC Berkeley)Pyrethroids, among the most widely-used home pesticides, are winding up in California rivers at levels toxic to some stream-dwellers, possibly endangering the food supply of fish and other aquatic animals, according to a new study by researchers at the University of California, Berkeley, and Southern Illinois University (SIU).

Pyrethroid insecticides, commonly used in California to kill ants and other insect pests around the home, have been found in street runoff and in the outflow from sewage treatment plants in the Sacramento area. The insecticide ended up in two urban creeks, the San Joaquin River and a 20-mile stretch of the American River, traditionally considered to be one of the cleanest rivers in the region.

Is iron the culprit in algae blooms?

Australia's own distinctive red soils could play a part in the formation of the stinking swathes of blue-green algae often shovelled off east coast beaches in summer.

A QUT team of scientists is taking an in-depth look at how iron, which gives our iron-rich soil its red colour, reaches water to potentially contribute to the algal blooms, which not only have a foul smell, but also make our eyes sting, cause fish kills and smother seagrass.

Ecologists discover forests are growing faster

Climate change appears to be driving accelerated growth

Speed is not a word typically associated with trees; they can take centuries to grow. However, a new study published in the Proceedings of the National Academy of Sciences has found evidence that forests in the Eastern United States are growing faster than they have in the past 225 years. The study offers a rare look at how an ecosystem is responding to climate change.

For more than 20 years forest ecologist Geoffrey Parker has tracked the growth of 55 stands of mixed hardwood forest plots in Maryland. The plots range in size, and some are as large as 2 acres. Parker's research is based at the Smithsonian Environmental Research Center, 26 miles east of the nation's capital.

Governments challenged to deliver more ambitious emissions reductions targets

Fifty-five governments have submitted pledges to the United Nations Framework Convention on Climate Change to cut and limit their greenhouse gas emissions by 2020, as part of the Copenhagen Accord. In doing so, they have accepted the Accord's objective of avoiding dangerous climate change by keeping global warming below 2 degrees C. Greenpeace calls on the 55 governments to take on tougher new emissions targets or face charges that they are ‘greenwashing’ their plans.

Paragraph 2 of the Copenhagen Accord specifically states, "We agree that deep cuts in global emissions are required... with a view to reduce global emissions so as to hold the increase in global temperature below 2 degrees Celsius, and take action to meet this objective..." This level of warming is regarded as a critical threshold beyond which there may be irreversible large-scale impacts on the environment.

Copenhagen Accord recycles old climate commitments, leaving the world heading for catastrophic climate change

With the passing of the Copenhagen Accord's 31 January deadline for its supporters to submit their pledges to curb greenhouse gas emissions, the absence of strengthened commitments has failed to meet the Accord's stated objective of taking action to limit global warming to under 2 degrees C (3.6 degrees F), a critical threshold for avoiding the worst impacts of climate change.

The 31 January deadline was the most immediate ‘action point’ in the non-binding Accord drawn up during last December's UN Copenhagen climate summit. It proved to have no impact on influencing major emitting nations to improve upon emission reduction commitments they had already made prior to the summit.