Phil. Trans. R. Soc. B (2010) 365, 2959–2971; doi:10.1098/rstb.2010.0143.
Agricultural ecosystems provide humans with food, forage, bioenergy and pharmaceuticals and are essential to human wellbeing. These systems rely on ecosystem services provided by natural ecosystems, including pollination, b...iological pest control, maintenance of soil structure and fertility, nutrient cycling and hydrological services. Preliminary assessments indicate that the value of these ecosystem services to agriculture is enormous and often underappreciated. Agroecosystems also produce a variety of ecosystem services, such as regulation of soil and water quality, carbon sequestration, support for biodiversity and cultural services. Depending on management practices, agriculture can also be the source of numerous disservices, including loss of wildlife habitat, nutrient runoff, sedimentation of waterways, greenhouse gas emissions, and pesticide poisoning of humans and non-target species. The tradeoffs that may occur between provisioning services and other ecosystem services and disservices should be evaluated in terms of spatial scale, temporal scale and reversibility. As more effective methods for valuing ecosystem services become available, the potential for ‘win–win’ scenarios increases. Under all scenarios, appropriate agricultural management practices are critical to realizing the benefits of ecosystem services and reducing disservices from agricultural activities.
more
Hank introduces us to biogeochemical cycles by describing his two favorites: carbon and water. The hydrologic cycle describes how water moves on, above, and below the surface of the Earth, driven by energy supplied by the sun and wind. The carbon cycle does the same... for carbon!
Like Crash Co...urse: http://www.facebook.com/YouTubeCrashC...
Follow Crash Course: http://www.twitter.com/TheCrashCourse
Table of Contents
1) Hydrologic Cycle - 1:15
A) Clouds - 2:13
B) Runoff - 3:06
C) Oceans - 3:41
D) Evapotranspiration - 4:25
2) Carbon Cycle - 5:12
A) Plants - 5:48
B) Fossil Fuels - 6:40
C) Oceans - 7:12
D) Global Warming - 7:35
more
Food environments are usually defined as the settings with all the different types of
food made available and accessible to people as they go about their daily lives.
That is, the range of food in supermarkets, small retail outlets, wet markets, street
food stalls, coffee shops, tea houses, s...chool canteens, restaurants, and all the other
venues where people buy and eat food. These environments differ enormously depending on the context. They can be extensive and diverse, with a seemingly endless array of options and price ranges, or they can be sparse, with very few options on offer. Because they determine what food consumers can access at a given moment in time, at what price, and with what degree of convenience, food environments both constrain and prompt the consumer’s choice.Food environments are influenced by the food systems which supply them, and vice versa. Food systems encompass the entire range of activities, people and institutions involved in the production, processing,
marketing, consumption and disposal of food (FAO, 2013). They include but are not limited to food supply chains. Making food systems nutrition-sensitive can contribute to addressing all forms of malnutrition, as food systems determine whether the food needed for good nutrition are available, affordable, acceptable and of adequate
quantity and quality. How closely food systems and food environments are interrelated and interdependent, and the degree to which external factors affect nutrition outcomes, varies from setting to setting.Many of today’s food systems
and food environments are challenged in supporting consumer choices that are
consistent with healthy diets and good nutrition. Consumers are not making choices based on nutrition and health, and poor diet is now the number one risk factor for death and disability worldwide (GBD, 2015). Food systems that do not enable healthy diets are increasingly recognized as an underlying cause of malnutrition (GLOPAN, 2016), and malnutrition, irrespective of form, has a huge cost. Economic costs associated with undernutrition are estimated at $1-2 trillion per year, about 2-3% of global GDP (FAO, 2013); the global economic cost of obesity and associated diet-related non-communicable diseases is estimated at $2 trillion per year, about 2.8% of global GDP (McKinsey, 2014). Influencing food environments for promoting healthy diets is an emerging strategy to address today’s nutrition challenges.
more
Food systems are made up of all the people, processes, and activities involved in getting food from where it is grown to where it is eaten. These systems are changing fast, especially in low- and middle-income countries. How can we be sure this transformation provides people with healthy and sustain...able access to foods? This video from the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH) explains the challenges, opportunities, and issues involved in food systems transformation.
more
This report uses the Food Systems Dashboard’s conceptual framework to
define and describe food systems. It summarizes the components, drivers,
and outcomes of food systems. The report also describes the food system
typologies used in the Dashboard
English Analysis on World about Agriculture, Climate Change and Environment, Epidemic and more; published on 15 Dec 2021 by FAO and UNICEF
Arabic Analysis on World about Food and Nutrition; published on 22 Sep 2021 by UNICEF.
Available in different languages
Arabic Analysis on World about Food and Nutrition; published on 22 Sep 2021 by UNICEF
English Analysis on World and 9 other countries about Food and Nutrition, Drought and Other; published on 13 Oct 2021 by ECHO, FAO and 3 other organizations
English Analysis on World about Food and Nutrition and Epidemic; published on 13 Dec 2021 by FAO
English Analysis on World about Food and Nutrition and Epidemic; published on 13 Dec 2021 by FAO
(Synthesis Report 2021) [EN] - World Analysis on World about Agriculture, Climate Change and Environment, Drought, Flood and more; published on 09 Dec 2021 by FAO
(Synthesis Report 2021) [RU] - World; Arabic Analysis on World about Agriculture, Climate Change and Environment, Drought, Flood and more; published on 09 Dec 2021 by FAO
Nature, biodiversity and health: an overview of interconnections
Urbanization, land use, global trade and industrialization have led to profound and negative impacts on nature, biodiversity and ecosystems across the world. The ongoing depletion of natural resources not only affects environmental c...onditions but also has an enormous impact on the well-being and security of societies.
This report provides an overview of the impacts of the natural environment on human health. It presents the ways nature and ecosystems can support and protect health and well-being, and describes how nature degradation and loss of biodiversity can threaten human health. It is targeted at readers who do not have extensive experience with the links between nature and health.
more
A rapid review of evidence on the managing the risk of disease emergence in the wildlife trade - World Animal Health Organization (OIE)
An IPCC Special Report on climate change, desertification,
land degradation, sustainable land management, food security,
and greenhouse gas fluxes in terrestrial ecosystems.
IPCC-Sonderbericht über Klimawandel, Desertifkation, Landdegradierung,
nachhaltiges Landmanagement, Ernährungssicherheit und
Treibhausgasfüsse in terrestrischen Ökosystemen
- Zusammenfassung für politische Entscheidungsträger
An IPCC Special Report on climate change, desertification, land
degradation, sustainable land management, food security, and
greenhouse gas fluxes in terrestrial ecosystems
An IPCC Special Report on climate change, desertification, land
degradation, sustainable land management, food security, and
greenhouse gas fluxes in terrestrial ecosystems
An IPCC Special Report on climate change, desertification, land
degradation, sustainable land management, food security, and
greenhouse gas fluxes in terrestrial ecosystems