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Global Pollution: Top Ten Toxic Threats in 2013
By The Editors A report released in 2012 by the Blacksmith Institute and Green Cross Switzerland pointed out that the disease burden of pollution is comparable in scope to that of more well-known public health threats, such as malaria or tuberculosis. The burden of disease measures the relative impact of different diseases and injuries on populations. As comparison, according to the World Health Organization (WHO), globally, there were about 219 million cases of malaria in 2010 and an estimated 660 000 deaths due to the disease, whereas in 2012 an estimated 8.6 million people developed tuberculosis and 1.3 million died from it. Yesterday (November 4, 2013), the Blacksmith Institute and Green Cross Switzerland published the 2013 report of…
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Breast Cancer: Prevention is Better than Cure
By The Editors The Health and Environment Alliance (HEAL) is a leading European not-for-profit organization addressing how the environment affects health in the European Union. With the support of more than 65 member organizations, HEAL brings independent expertise and evidence from the health community to different decision-making processes. According to HEAL, “the role that environmental factors play in cancer causation, specifically carcinogenic substances and other cancer-related chemicals, is increasingly recognized. Consequently, reducing exposure to hazardous substances is gaining prominence as a key approach to cancer prevention.” On October 23, 2013, HEAL member Breast Cancer UK (BCUK) launched its Manifesto ‘Prevention is better than cure: 5 pledges for 2015 and beyond’ calling on the…
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Unsafe Medical Care: Global Burden and Policy Needs
By Roberta Attanasio Accurate and meaningful information deriving from scientific evidence is essential to drive international health policy and improve global public health. However, in many instances and for a variety of reasons, translating health data into policy results problematic. To overcome these challenges, in the 1990s the Harvard School of Public Health, the World Bank and the World Health Organization (WHO) developed a new concept – the Burden of Disease – to describe death and loss of health due to diseases, injuries and risk factors for all regions of the world. The Global Burden of Disease model is run by WHO and uses disability-adjusted life years (DALYs) to measure…
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The Great Global Die-Off: Frogs and Lymphocytes
By Roberta Attanasio Frogs and other amphibians – salamanders and caecilians – have been declining worldwide during the past few decades at an alarming rate. According to a June 2012 assessment by the International Union for the Conservation of Nature and Natural Resources (IUCN), about 41 percent of amphibian species are at risk of extinction, and some are already extinct. Like many other inhabitants of our planet, amphibians have been hit hard by climate change and habitat loss – and not only. Amphibians have also been decimated by the spread of chytridiomycosis, which is defined by the IUCN as the single most devastating infectious disease of vertebrate animals. In a…
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Sentinel Bottlenose Dolphins: Exposure to Toxic Chemicals
By Roberta Attanasio Bottlenose dolphins – the playful, intelligent and sleek swimmers frequently seen in warm and shallow waters along coastlines – are important biological indicators or sentinels. As coastal dwellers, they are exposed to pollutants deriving from human activities and, as predators at the top of the food web, they can help evaluate the overall health status of their ecosystems. In 2011, two teams of researchers published results from their studies on bottlenose dolphins (Tursiops truncates) as indicators of persistent organic pollutants in coastal ecosystems. Persistent organic pollutants are toxic chemicals recognized as a global threat to human health and the environment. Because they can be transported by wind…
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Air Pollution: The Most Widespread Environmental Carcinogen
By Roberta Attanasio Exposure to outdoor air pollution causes lung cancer in humans – this is the conclusion drawn by leading experts after thoroughly reviewing the latest available scientific literature. The same experts evaluated particulate matter separately and reached a similar conclusion. Therefore, particulate matter is now classified as carcinogenic to humans. These conclusions apply to all regions of the world as they are based on findings from large epidemiologic studies that include millions of people living in different continents. The experts were convened by the IARC Monographs Programme. IARC (International Agency for Research on Cancer) is the specialized cancer agency of the World Health Organization (WHO). The IARC Monographs…
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Fine Particulate Matter: The Global Toll
By The Editors Particulate matter, also known as particle pollution or PM, is a complex mixture of very tiny solid and liquid particles made up of several components, including acids (such as nitrates and sulfates), organic chemicals, metals, and soil or dust particles. Fine particles (PM2.5) are found in smoke and haze and are 2.5 micrometers in diameter and smaller. Sources of fine particles include all types of combustion — motor vehicles, power plants, residential wood burning, forest fires, agricultural burning, and some industrial processes. Fine particles cause serious health problems such as heart disease, lung cancer and asthma attacks as they can get deep into the lungs — some may even get into the…
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Global Reforestation: How Likely Is It?
By The Editors Forests are plant communities dominated by trees and, because of their nature, rely on dynamic associations of living organisms that undergo constant change – deforestation may be easily followed by reforestation, either natural or man-driven. How likely is it that global reforestation will occur? According to a recently published study entitled “Outlook on a worldwide forest transition“, it is not likely. Results of the study indicate that — unless we substantially boost agricultural production or we consume less food — the forest cover of the planet will continue to decline over the next two centuries until it stabilizes at 22% of global land cover and 1.4% of wild pasture. In…
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Childhood Poverty: Effects on the Immune System
By Roberta Attanasio Redness, heat, swelling, pain – these are the four well known signs of the inflammatory response. Although a bit uncomfortable, these signs let us know that our immune system is working hard to get rid of microorganisms or other harmful agents while repairing tissue damage. Once the job is done, the immune system goes back to its steady-state, ready to fight again whenever the need arises. However, the inflammatory response itself can sometimes be damaging. One type of damaging response leads to the development of degenerative diseases, as for example diabetes, cardiovascular disease and cancer. This type of response – chronic inflammation – may be triggered by…
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Reduction of Livestock Gas Emissions May Be Within Reach
By The Editors Livestock is known to be a major global threat to the environment. In 2006, the Food and Agriculture Organization of the United Nations (FAO) released a highly influential report (Livestock’s Long Shadow – Environmental Issues and Option) stating that the livestock sector generates more greenhouse gas emissions as measured in CO2 equivalent – 18 percent – than transport. It is also a major source of land and water degradation. Henning Steinfeld, senior author of the 2006 report said at that time: “Livestock are one of the most significant contributors to today’s most serious environmental problems. Urgent action is required to remedy the situation.” These words are certainly true…
