Environmental Research Letters
Microplastic debris floating at the ocean surface can harm marine life. Understanding the severity of this harm requires knowledge of plastic abundance and distributions. Dozens of expeditions measuring microplastics... have been carried out since the 1970s, but they have primarily focused on the North Atlantic and North Pacific accumulation zones, with much sparser coverage elsewhere. Here, we use the largest dataset of microplastic measurements assembled to date to assess the confidence we can have in global estimates of microplastic abundance and mass. We use a rigorous statistical framework to standardize a global dataset of plastic marine debris measured using surface-trawling plankton nets and coupled this with three different ocean circulation models to spatially interpolate the observations. Our estimates show that the accumulated number of microplastic particles in 2014 ranges from 15 to 51 trillion particles, weighing between 93 and 236 thousand metric tons, which is only approximately 1% of global plastic waste estimated to enter the ocean in the year 2010. These estimates are larger than previous global estimates, but vary widely because the scarcity of data in most of the world ocean, differences in model formulations, and fundamental knowledge gaps in the sources, transformations and fates of microplastics in the ocean.
more
In this edition, the Antimicrobial Resistance chapter discusses the growing, dangerous trend of antimicrobial resistance and the potential catastrophic consequences on global health.
The Nanomaterials chapter talks about this relatively new technology and its potential impacts on the environment a...nd health.
The Marine Protected Areas chapter draws attention to the plight of our oceans and the need for more and better managed protected areas.
The Sand and Dust Storms chapter discusses the human and environmental causes of such phenomena, their health impacts which include respiratory and cardiovascular diseases and lung cancer, and the need to manage the storms through sustainable land and water management.
The Solar Solutions chapter highlights how this renewable energy could help tackle climate change and bring much needed energy to off grid settlements.
The Environmental Displacement chapter shows how the impacts of climate change are displacing people, causing them to leave their homes.
more
The American Journal of Tropical Medicine and Hygiene Volume 106: Issue 1 p.12-14.he piece highlights a body of research that suggests tiny plastic particles could disrupt immune and endocrine systems, damage organs, and cause other health problems. “Without a fundamental reimagining of global... industrial practices, we will continue to see dire impacts on the climate, the planet and our health
more
Biodiversity and healthy natural ecosystems, including protected areas in and around cities, provide ecosystem benefits and services that support human health, including reducing flood risk, filtering air pollutants, and providing a reliable supply ...of clean drinking water. These services help to reduce the incidence of infectious diseases and respiratory disorders, and assist with adaptation to climate change. Access to nature offers many other direct health benefits, including opportunities for physical activity, reduction of developmental disorders and improved mental health.
more
The coastal regions of Bangladesh are hit by cyclones regularly. The country has evolved, in the face of repetitious calamities, a disaster preparedness programme. The major response to cyclones has been the building of cyclone shelters, which also double as community centers and schools. While thes...e cyclone shelters have proved to be useful, they are more in the nature of disaster management, that is, they are measures that come in useful particularly in the event of a cyclone. The approach of this study has been to look at existing houses and the process of building and maintaining these houses in the face of frequent cyclonic storms and storm surges, and gather information on shared knowledge and collective experiences of the people in all aspects of house building. The aim of this study is to find ways to make traditional structures more cyclone resistant and less prone to wind damage.
more
Compared with other health areas, the mental health impacts of climate change have received less research attention. The literature on climate change and mental health is growing rapidly but is characterised by several limitations and research gaps.... In a field where the need for designing evidence-based adaptation strategies is urgent, and research gaps are vast, implementing a broad, all-encompassing research agenda will require some strategic focus.
more
Over half a billion children are living in areas with extremely high levels of floods and nearly 160 million children live in areas of high or extremely high droughts. The World Health Organisation ...(WHO) estimates that 26% of the annual 6.6 million deaths of children under five are linked to environment-related causes and conditions. Children are also disproportionately affected by pollution, not only in terms of death rates, but also in terms of cognitive and physical development. This report illustrates that environmental causes also have an impact on whether children are pushed to work and on the kind of work they engage in, the conditions of work, exposure to dangerous toxicants and the risk of exploitation. However, the report raises more questions than it answers as it is one of the first reports addressing the question, how environmental degradation and climate change affect the vulnerability of children towards exploitation.
more
For the purposes of this review, we are not setting out what exactly implementing the concept of
planetary health at a national level should or could look like. This is a complicated and nuanced aspect
of moving the concept of planetary health to action that will be highly dependent on the unique ...needs
of each country. We are, however, trying to encourage progress in this regard by identifying openings
that could be leveraged to speed the uptake of the concept of planetary health.
more
Antimicrobial resistance has become a serious public health threat for effective treatment of an ever increasing range of infections caused by bacteria, parasites, viruses and fungi. When infections can no longer be treated by first-line antibiotics, other antibiotics must be used, which are both mo...re expensive and more toxic. Treatment and hospitalization is prolonged, and patients undergoing operations and other medical procedures are more vulnerable to infections. All this imposes a huge burden on health care systems and on the economy of countries. This is a major challenge to the health system in Mauritius which provides health care free of user cost to the whole population.
more
Ocean plastic pollution has reached crisis level: every minute, more than an entire garbage truck of plastic makes its way into the world’s oceans—roughly 11 million metric tons annually. While plastic waste presents an immediate threat to marine...> wildlife and ecosystems, this global challenge also has implications for major industries such as fishing and tourism, impacting the livelihoods of millions of people. The drivers and impacts of ocean plastic pollution also contribute to global challenges in food security, human health, and climate change.
more
Policy Guidance Brief 1
• Climate change has already challenged the agriculture sector in Myanmar by afecting rice yields and livestock production, while disasters such as foods and cyclones have caused massive destruction in rural areas.
...>
• Without adaptation, the long-term consequences of climate change will likely include reduced productivity and huge economic losses, food insecurity, poverty and migration.
• According to the Climate Change Action Plan for the Agriculture, Fisheries and Livestock sector, by 2030 Myanmar should achieve climate-resilient productivity and promote climate-smart responses to support food security and livelihood strategies while also introducing resource-efficient and lowcarbon practices.
more
Current evidence that the climate is changing is overwhelming. Impacts of climate change and variability are being observed: more intense heat-waves, fires and floods; and increased prevalence of food- water- and vector-borne diseases. Climate change will put pressure on environmental and health det...erminants, such as food safety, air pollution and water quantity and quality. A climate-resilient future depends fundamentally on reducing greenhouse gas emissions. Limiting warming to below 2 °C requires transformational technological, institutional, political and behavioural changes: the foundations for this are laid out in the Paris Agreement of December 2015. The health sector can lead by example, shifting to environmentally friendly practices and minimizing its carbon emissions. A climate-resilient future will increasingly depend on managing and reducing climate change risks to protect health. In the near term, this can be enhanced by including climate change in national health programming and creating climate-resilient health systems.
more
PNAS 119 (8) e2113947119 | https://doi.org/10.1073/pnas.2113947119
Environmental exposure to active pharmaceutical ingredients (APIs) can have negative effects on the health of ecosystems and humans. While numerous studies have monitored APIs in rivers, these employ different analytical methods, m...easure different APIs, and have ignored many of the countries of the world. This makes it difficult to quantify the scale of the problem from a global perspective. Furthermore, comparison of the existing data, generated for different studies/regions/continents, is challenging due to the vast differences between the analytical methodologies employed. Here, we present a global-scale study of API pollution in 258 of the world’s rivers, representing the environmental influence of 471.4 million people across 137 geographic regions. Samples were obtained from 1,052 locations in 104 countries (representing all continents and 36 countries not previously studied for API contamination) and analyzed for 61 APIs. Highest cumulative API concentrations were observed in sub-Saharan Africa, south Asia, and South America. The most contaminated sites were in low- to middle-income countries and were associated with areas with poor wastewater and waste management infrastructure and pharmaceutical manufacturing. The most frequently detected APIs were carbamazepine, metformin, and caffeine (a compound also arising from lifestyle use), which were detected at over half of the sites monitored. Concentrations of at least one API at 25.7% of the sampling sites were greater than concentrations considered safe for aquatic organisms, or which are of concern in terms of selection for antimicrobial resistance. Therefore, pharmaceutical pollution poses a global threat to environmental and human health, as well as to delivery of the United Nations Sustainable Development Goals.
more
The objective of this guidance document is to support the public health professionals
in implementing effective surveillance of cholera in at-risk, endemic and epidemic
areas. This document has been developed by the Surveillance Working Group of t...he
Global Task Force for Cholera Control (GTFCC) at the World Health Organization based
on the existing documents, guidelines, tools and articles related to surveillance of
cholera disease, as well as technical discussions with experts held during GTFCC
meetings.
more
Barbados currently has a rudimentary framework and capacity to address the issue of antimicrobial resistance. There however needs to be coordination of efforts and improvement in areas where gaps have been identified.Actions required include improve...d antibiotic stewardship in healthcare settings, prevention of the spread of drug-resistant organisms//bacteria, elimination of the use of medically-important antibiotics for growth promotion in food animals, and expanded surveillance for drug-resistant bacteria in humans and animals.
The National Action Plan will provide the roadmap to guide Barbados in the effort to address the urgent and serious threat of AMR and will be organized around three goals for collaborative action.
more
PlosOne December 10, 2014 https://doi.org/10.1371/journal.pone.0111913
Plastic pollution is ubiquitous throughout the marine environment, yet estimates of the global abundance and weight of floating plastics have lacked data, particularly from the... Southern Hemisphere and remote regions. Here we report an estimate of the total number of plastic particles and their weight floating in the world's oceans from 24 expeditions (2007–2013) across all five sub-tropical gyres, costal Australia, Bay of Bengal and the Mediterranean Sea conducting surface net tows (N = 680) and visual survey transects of large plastic debris (N = 891). Using an oceanographic model of floating debris dispersal calibrated by our data, and correcting for wind-driven vertical mixing, we estimate a minimum of 5.25 trillion particles weighing 268,940 tons. When comparing between four size classes, two microplastic <4.75 mm and meso- and macroplastic >4.75 mm, a tremendous loss of microplastics is observed from the sea surface compared to expected rates of fragmentation, suggesting there are mechanisms at play that remove <4.75 mm plastic particles from the ocean surface.
more
Published: November 24, 2020 https://doi.org/10.1371/journal.pbio.3000938
Climate change is expected to have complex effects on infectious diseases, causing some to increase, others to decrease, and many to shift their distributions. There have been several important advances in understanding the ...role of climate and climate change on wildlife and human infectious disease dynamics over the past several years. This essay examines 3 major areas of advancement, which include improvements to mechanistic disease models, investigations into the importance of climate variability to disease dynamics, and understanding the consequences of thermal mismatches between host and parasites. Applying the new information derived from these advances to climate–disease models and addressing the pressing knowledge gaps that we identify should improve the capacity to predict how climate change will affect disease risk for both wildlife and humans.
more
The Lab identifies, develops, and launches sustainable finance
instruments that can drive billions to a low-carbon economy. The
2019 Global Lab Cycle targets four specific sectors across
mitigation and adaptation: blue carbon in marine & coastal
...
ecosystems; sustainable agriculture for smallholders in West and
Central Africa; sustainable energy access; and sustainable cities
more