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 ha...ve 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.
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A set of basic guidelines on how to be accountable to local people and measure program impact in emergency situations. The "good enough" approach emphasizes simple and practical solutions and encourages the user to choose tools that are safe, quick, and easy to implement
This publication is a companion document to the NDVP National Deployment and Vaccination Plans guidance, which provides a framework for countries to develop their national strategies. As countries face challenges with erratic vaccine supplies, use of multiple vaccine products with different charact...eristics, and the size of populations and their diversity, this document provides operational guidance and information to support planners and immunization programme managers at the national and sub-national levels on microplanning for COVID-19 vaccination implementation.
This Guide is available in English, French, Arabic, chinese, Portuguese, Spanish, Russian
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POST TRAINING FOLLOW-UP TOOL
The purpose of this strategy is to guide the planning, management and development of human resources for health in Rwanda for the period 2011 - 2016. The overall aim of the plan is to increase the number of appropriately skilled, motivated and equitably distributed health service providers for Rwand...a.
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Economic conditions in Syria are projected to continue to be mired by prolonged armed conflict, turmoil in Lebanon and Turkey, COVID-19, and the war in Ukraine. Subject to extraordinarily high uncertainty, we project that Syria’s real GDP will contract by 2.6 percent in 2022 (to US$ 15.5 billion i...n constant 2015 prices) after declining by 2.1 percent in 2021. Risks to the growth outlook are significant and tilted to the downside.
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This publication explores how housing, land and property rights issues have been addressed in peace agreements concluded over the past three decades. It provides practical guidance for peace negotiators on all sides in Myanmar and outlines how addressing these rights in the peace process will build ...the groundwork needed for an eventual peace agreement or agreements in the country.
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2020 is a critical year for our Joint Programme as we collectively define the path to getting back on track to ending the AIDS epidemic by 2030. Our revised timelines for adoption of the next strategy are highly ambitious. We need the full support of all the tremendously dedicated people in UNAIDS-w...ithin our staff, our board and all our stakeholders to make this happen.
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Experiences and recommendations from the International Red Cross and Red Crescent Movement.
Measures imposed by governments to prevent the spread of the disease, including lockdown restrictions, quarantines, physical distancing, and their economic and social consequences, further increase this dist...ress and the risk of mental health problems.
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This document outlines why and how nurses and midwives are important, not only for individual health optimization but also to achieve the thematic priorities of For the Future. More specifically, it provides case studies to showcase the amazing work that nurses and midwives across the Region are doi...ng to improve health. The document also provides future policy directions to strengthen the scope and leadership of the nursing and midwifery workforce, alongside actions to accelerate investment in their education, skills and employment.
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This chapter addresses the biogeochemical cycles of carbon dioxide. (CO2), methane (CH4) and nitrous oxide (N2O)