Archive for the ‘Science’ Category
New Projects Dispel Myths and Spread the Truth About Vaccines
By Stephen Leahy
UXBRIDGE, Canada, May 3, 2012 (IPS)
In northern Pakistan, one in ten children dies before the age of five from diseases such as polio, measles or hepatitis, despite the availability of vaccines. And while health workers feared visiting this region, which includes the mountainous Swat district controlled by the Taliban until 2009, local people also fear the potentially life-saving vaccines.
“Some local imams (religious leaders) have been preaching that vaccines are an attempt by the U.S. government to sterilise children,” said Erfaan Hussein Babak, director of The Awakening project, which aims to promote vaccinations in the Swat district.
“The child mortality rate from preventable diseases is distressingly high,” Babak told IPS by phone from the region.
Some people in the region understand that vaccines are safe, but overall, there is little demand by parents for vaccinations, he said. To counter certain negative perceptions, The Awakening project is working to promote child vaccination by establishing village health committees, school clubs and radio programs.
The project is being funded by the Canada-based Sandra Rotman Centre as one of five projects awarded 10,000 U.S. dollars to educate populations in developing countries about the use of vaccines and immunisation to prevent diseases.
Combating myth
By 2004, polio had nearly been eradicated in Pakistan. However, the disease has seen a resurgence in the northern areas, in part due to the mistaken belief that the oral vaccine could render children impotent or sterile. Read the rest of this entry »
Revealed: In Acidic Oceans Sunlight Kills Planet’s Most Important Organism — Marine Algae
A number of marine diatom cells (Pleurosigma), which are an important group of phytoplankton in the oceans.
Credit: Michael Stringer
“There’s a synergistic effect between increased ocean acidity and natural light”
“It’s clear we are conducting a giant experiment on the planet and we don’t know what we are doing.”
By Stephen Leahy
UXBRIDGE, Canada, May 8, 2012 (IPS)
Without major reductions in the use of fossil fuels, sunlight will kill an unknown number of ocean phytoplankton, the planet’s most important organism, a new study reports this week.
Not only are phytoplankton, also known as marine algae, a vital component in the ocean’s food chain, they generate at least half of the oxygen we breathe.
In the not so distant future, sunlight, the very source of life for phytoplankton, will likely begin to kill them because of the ocean’s increasing acidity, researchers from China and Germany have learned.
“There’s a synergistic effect between increased ocean acidity and natural light,” says Ulf Riebesell of the Helmholtz Centre for Ocean Research in Kiel, Germany.
Riebesell added that it was also possible “phytoplankton could adapt”.
Researchers were surprised to discover that diatoms, one of the most important and abundant types of phytoplankton, fared very badly during shipboard experiments conducted by co-author Kunshan Gao, from the State Key Laboratory of Marine Environmental Science at Xiamen University, Xiamen China.
Previous experiments in labs like Riebesell’s found that diatoms actually did better in high-acid seawater, unlike most other shell- forming plankton. Burning fossil fuels has made the oceans about 30 percent more acidic researchers discovered less than 10 years ago. Oceans absorb one third of the carbon dioxide (CO2) emitted from using fossil fuels.
The good news is this has slowed the rate of global warming. The bad news is oceans are now more acidic and it will get worse as more CO2 is emitted. This is basic, well-understood ocean chemistry. Read the rest of this entry »
Standing Up for the Planet and the Future: Time to Stop Using Fossil Fuels
Coal power plant – Alberta
+15,000 temperature records already broken in the US this year
By Stephen Leahy
UXBRIDGE, Canada, May 4, 2012 (IPS)
What are you doing on Saturday? Peter Nix, a retiree, will be standing on a railway track on Canada’s west coast blocking a coal train destined to ship U.S. and Canadian coal to Asia.
Nix will be joined by dozens of people near White Rock, British Columbia on May 5. They will be in good company as tens of thousands of people around the world participate in global day of action to “connect the dots” between climate change and extreme weather.
“There will be at least 1,200 actions in more than 100 countries,” says Jamie Henn, communications director for 350.org, a U.S.-based environmental group.
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“Recent opinion surveys show the more than 60 percent of the U.S. public are connecting extreme weather to climate change,” Henn told IPS.
The U.S. public is not wrong, say scientists.
“All weather events are affected by climate change because the environment in which they occur is warmer and moister than it used to be,” Kevin Trenberth, senior scientist at the U.S. National Center for Atmospheric Research, told IPS previously. Read the rest of this entry »
Canadian Scientists Denounce Climate Change Denial, Government Censorship
Canadian media coverage of climate change has fallen by 80 percent
By Stephen Leahy
VANCOUVER, Canada, Feb 21, 2012 (IPS)
Amid revelations of a well-funded U.S. organisation’s plans to deliberately distort climate science, scientists and journalists at a major scientific conference called on the Canadian government to stop its muzzling of scientists.
For the past four years, the Canadian government has been denying timely access to government scientists even when their findings are published in leading scientific journals, said scientists and journalists in a special session of the…
Rio+20: The Moment in History to Ensure Our Future Survival?
Planet Under Pressure - State of the Planet Declaration Mar 29 2012.
Worlds’ Scientists Say Facing “Planetary Emergency”
By Stephen Leahy
UXBRIDGE, Canada, (IPS)
The upcoming Rio+20 conference has to be the moment in human history when the nations of the world come together to find ways to ensure the very survival of humanity, many science and environmental experts believe.
Except that governments, the media and the public aren’t paying attention to the “planetary emergency” unfolding around them. The situation is like firefighters yelling “fire” in crowded room and still no listens.
“The situation is absolutely desperate and yet there’s nothing on the front pages or on the agenda of world leaders,” said Pat Mooney, executive director of the ETC Group, an international environmental organisation based in Ottawa.
“The lack of attention is a tragedy,” said Mooney, who has 40 years experience in international environment and development issues.
Humanity is failing in its stewardship of the planet. An incredible 85 percent of the world’s oceans are in trouble, said Susan Lieberman, director of international policy at the Pew Environment Group, a U.S. organisation.
Rio+20 is a major opportunity to turn this around, Lieberman told IPS.
The Jun. 20-22 Rio+20 meet is timed to coincide with the 20th anniversary of 1992 Earth Summit in Rio de Janerio. The Earth Summit captured world attention, with leaders from most countries and some 10,000 media attending.
It gave birth to the most important environmental treaties on climate change, biodiversity and land degradation and desertification. World leaders also endorsed Agenda 21, a detailed blueprint on how nations can practice sustainable development.
Years of preparation went into the 1992 Summit, while only months have gone into Rio+20.
“There hasn’t been nearly enough preparation to be able to sign treaties,” said Lieberman. It’s been a struggle to get many governments like such as the US to focus on Rio+20 at all she said.
“Governments are not giving this opportunity enough importance given the mess we are in,” said Lisa Speer, director of the international oceans programme at the Natural Resources Defense Council, a U.S. NGO. Read the rest of this entry »
Extreme Weather is the New Normal with Climate Change
Aftermath of an early tornado in Lancaster, Texas. To join thousands of others connecting the dots between climate change and extreme weather, visit ClimateDots.org.
By Stephen Leahy
CAIRNS, Australia, Apr 3, 2012 (Tierramérica)
Extreme weather is fast becoming the new normal. Canada and much of the United States experienced summer temperatures during winter this year, confirming the findings of a new report on extreme weather.
For two weeks this March most of North America baked under extraordinarily warm temperatures that melted all the snow and ice and broke 150-year-old temperature records by large margins.
Last year the U.S. endured 14 separate billion-dollar-plus weather disasters including flooding, hurricanes and tornados.
A new report from the Intergovernmental Panel on Climate Change (IPCC), released Mar. 28, provides solid evidence that record-breaking weather events are increasing in number and becoming more extreme. And if current rates of greenhouse gas emissions are maintained, these events will reach dangerous new levels over the coming century.
Since 1950 there have been many more heat waves and record warm temperatures than in previous decades.
This will only increase in future decades, as will heavier rainfall events in tropical regions and the high latitudes, according to the Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (SREX).
The hottest day that occurs once in 20 years is likely to become a one-in-two year event by the end of the century, except in the high latitudes of the Northern hemisphere, where it is likely to happen once every five years.
The average tropical cyclone maximum wind speed is likely to increase, but the global frequency of tropical cyclones is likely to decrease or remain unchanged.
Indigenous Peoples Can Show the Path to Low-Carbon Living If Their Land Rights Are Recognized
Youba Sokona of Mali is co-chair of the IPCC Working Group III. Photo: Citt Williams, OurWorld2.0
by Stephen Leahy
First published at National Geographic’s NewsWatch
Many indigenous peoples are living examples of societies thriving with sustainable, low-carbon lifestyles. Successfully meeting the global climate change challenge requires that much of the world shift from high carbon-living to low.
This shift is daunting. Current emissions for Australia and the United States average about 20 tonnes of carbon dioxide per person. In the coming decades that needs to fall to two tonnes per person as it is currently in Brazil or the Dominican Republic.
Emissions from most indigenous peoples are even lower and are amongst the lowest in the world.
All options for making the shift from high- to low-carbon living need to be explored and that’s why the United Nations University Traditional Knowledge Initiative (UNU) and Intergovernmental Panel on Climate Change (IPCC) invited indigenous peoples to a special three-day workshop in Cairns, Australia last week.
“Climate change is the result of our behaviour,” said Youba Sokona, co-chair of the IPCC Working Group III that will report to governments in 2014 on ways carbon emissions can be reduced.
The IPCC is the world authority on climate, assessing the state of knowledge on the issue every five to six years. Traditional knowledge of local and indigenous peoples have been left out until now.
“One of the critical solutions is to change our behavior, to change our production and consumption systems,” said Sokona, a climate expert from the African nation of Mali.
The Climate Change Mitigation with Local Communities and Indigenous peoples workshop offered a number of “examples of local peoples in Siberia, in Australia, northern Canada and in some African countries demonstrating that it is possible to change our behavior,” he said.
Marilyn Wallace, a Kuku Nyungkal Aboriginal woman. Photo: Citt Williams, OneWorld 2.0
“I live in a shack but I love being on my ‘bubu’, my traditional land,” said Marilyn Wallace of the Kuku Nyungka ‘mob’ (tribe) in northern Queensland, Australia.
Wallace has lived in towns but fought for years to “return to country” and live in her tropical forest homeland 60 kilometers from Cooktown.
At the workshop Wallace and every other indigenous delegate focused on land rights. The simple truth is that if they can’t live on and manage their lands with time-tested traditional methods, they can’t be part of the solution to climate change.
For complete article see Nat Geo’s NewsWatch
Climate Scientists to Attend Native Knowledge ‘Boot Camp’ in Australia
By Stephen Leahy
First published at National Geographic NewsWatch
In what may be a ‘clash of worldviews,’ representatives from indigenous and local communities are holding a climate workshop with physicists, computer modellers, and other climate scientists from the Intergovernmental Panel on Climate Change (IPCC) in Cairns, Australia 26-28 March.
This is a unique opportunity for Native peoples to discuss their traditional knowledge and experiences as it relates to climate change.
Indigenous peoples are amongst the most affected by current and future climate change but their experiences and knowledge have largely been ignored by science experts at the IPCC. The workshop, Climate Change Mitigation with Local Communities and Indigenous Peoples: Practices, Lessons Learned and Prospects, is a significant effort to change this.
There are an estimated 350 million indigenous peoples according to the United Nations. They legally own more than 11% of the world’s forests and those coincide with areas that hold up to 80% of the world’s terrestrial biodiversity. Traditional knowledge is a different but no less valid way of understanding the world. However, very few scientists of the thousands who have worked with the IPCC have any experience with traditional knowledge.
The IPCC is working on its next big report (to be released in 2014) and has acknowledged that its Fifth Assessment Report needs to look at how climate change will impact indigenous peoples, their role in reducing carbon emissions (mitigation) and what barriers they face in adapting to current and future climate impacts.
The Cairns workshop will focus on how indigenous peoples can help reduce global carbon emissions. It is being held in collaboration with the IPCC, indigenous organizations, the United Nations University (UNU), the Australian government and others.
Global Warming to Ignite the Carbon Bomb in Northern Forests
Anaktuvuk River peat fire 2007
“In a warmer world, there will be more fire”
Fires already burn an area larger than India every year.
By Stephen Leahy
VANCOUVER, Feb 29, 2012 (IPS)
Rising temperatures are drying out northern forests and peatlands, producing bigger and more intense fires. And this will only get much worse as the planet heats up from the use of ever larger amounts of fossil fuels, scientists warned last week at the end of the major science meeting in Vancouver.
“In a warmer world, there will be more fire. That’s a virtual certainty,” said Mike Flannigan, a forest researcher at the University of Alberta, Canada.
“I’d say a doubling or even tripling of fire events is a conservative estimate,” Flannigan told IPS.
While Flannigan’s research reveals forest fire risk may triple in future, a similar increase in peat fires will be far more dangerous. There are millions of square kilometres of tundra and peatlands in the northern hemisphere and they hold more than enough carbon to ramp up global temperatures high enough to render most of the planet uninhabitable if they burn.
A forest fire in Indonesia that ignited peatlands in 1997 smouldered for months, releasing the equivalent of 20 to 40 percent of the worldwide fossil fuel emissions for the entire year, he said.
“There is the potential for significant releases of carbon and other greenhouse gases (from future peat fires),” Flannigan said.
If peat fires release large amounts of carbon, then temperatures will rise faster and higher, leading to further drying of forests and peat, and increasing the likelihood of fires in what is called a positive feedback, he said.
When the increased fire from global warming was first detected in 2006, Johann Goldammer of the Global Fire Monitoring Center at Germany’s Freiburg University called the northern forest a “carbon bomb”.
“It’s sitting there waiting to be ignited, and there is already ignition going on,” Goldammer said according to media reports in 2006.
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Canadian Scientists Denounce Climate Change Denial, Government Censorship
Canadian media coverage of climate change has fallen by 80 percent
By Stephen Leahy
VANCOUVER, Canada, Feb 21, 2012 (IPS)
Amid revelations of a well-funded U.S. organisation’s plans to deliberately distort climate science, scientists and journalists at a major scientific conference called on the Canadian government to stop its muzzling of scientists.
For the past four years, the Canadian government has been denying timely access to government scientists even when their findings are published in leading scientific journals, said scientists and journalists in a special session of the American Academy for the Advancement of Science meeting here in Vancouver, British Columbia.
“The Canadian public doesn’t know as much as they could about science and climate change,” said Margaret Munro, who is a science writer for Postmedia News, based in Vancouver.
“The more controversial the story, the less likely you are to talk to the scientists,” Munro told IPS.
Last year, journalists from around the world were denied access to Canadian government scientist Kristi Miller, who had published a groundbreaking paper on the decline of salmon populations in western Canada in the journal Science.
However, lobbyists for the oil and gas industry appear to have direct access to scientists, according to emails obtained under access to information legislation. Internal government documents reported an 80-percent decline in Canadian media coverage of climate change since 2007 when the new Stephen Harper Conservative government put restrictive policies into place.
“It is unacceptable that the Canadian public sits back and allows access to the science they’re funding to be denied them,” said Andrew Weaver, a climate scientist at the University of Victoria.
Read the rest of this entry »
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