THE 2017 MODEL (BY GUY LAKEMAN) EMPHASIZES THE PEAK IN POLLUTION BEING CREATED BY OVERPOPULATION WITH THE CARRYING CAPACITY OF ARABLE LAND NOW BEING 1.5 TIMES OVER A SUSTAINABLE FUTURE (PASSED IN 1990) AND NOW INCREASING IN LOSS OF HUMAN SUSTAINABILITY DUE TO SEA RISE AND EXTREME GLOBAL WATER REL
Drought Transport Silicene Graphene Resource Solar Nuclear Energy Food Agriculture Cyclone Tornado Typhoon Hurricane Loss Flood Animals Plants Fish Sea Ocean Yield Regeneration Pollution Lifetime Rural Industrial Urban Labor Jobs Land Resources Services Health Fertility Politics Economics Strategy Engineering Technology Science Mortality Death Failure Climate Weather Population Population Growth Demographics Environment

THE 2017 MODEL (BY GUY LAKEMAN) EMPHASIZES THE PEAK IN POLLUTION BEING CREATED BY OVERPOPULATION WITH THE CARRYING CAPACITY OF ARABLE LAND NOW BEING 1.5 TIMES OVER A SUSTAINABLE FUTURE (PASSED IN 1990) AND NOW INCREASING IN LOSS OF HUMAN SUSTAINABILITY DUE TO SEA RISE AND EXTREME GLOBAL WATER RELOCATION IN WEATHER CHANGES IN FLOODS AND DROUGHTS AND EXTENDED TROPICAL AND HORSE LATTITUDE CYCLONE ACTIVITY AROUND HADLEY CELLS

THE MODEL IS ZONE SPECIFIC AS GLOBAL WEATHER IS NOT HOMOGENEOUS BUT A COLLECTION OF HEAT BUMBPS DEPENDENT ON POPULATION SIZE OF URBAN HEAT ISLANDS AND MASSED CONURBATIONS AND AGGLOMERATIONS 

The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors.

THIS MODEL BY GUY LAKEMAN, FROM METRICS OBTAINED USING A MORE COMPREHENSIVE VENSIM SOFTWARE MODEL, SHOWS CURRENT CONDITIONS CREATED BY THE LATEST WEATHER EXTREMES AND LOSS OF ARABLE LAND BY THE  ALBEDO EFECT MELTING THE POLAR CAPS TOGETHER WITH NORTHERN JETSTREAM SHIFT NORTHWARDS, AND A NECESSITY TO ACT BEFORE THERE IS HUGE SUFFERING.
BY SETTING THE NEW ECOLOGICAL POLICIES TO 2015 WE CAN SEE THAT SOME POPULATIONS CAN BE SAVED BUT CITIES WILL SUFFER MOST. 
CURRENT MARKET SATURATION PLATEAU OF SOLID PRODUCTS AND BEHAVIORAL SINK FACTORS ARE ALSO ADDED

Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amount of non-renewable resources (which could occur through the development of better exploration technologies) improve our future? Also, experiment with the start date of a low birth-rate, environmentally focused policy.

2017 Weather & Climate Extreme Loss of Arable Land and Ocean Fertility by Guy Lakeman - The World3+ Model: Forecaster
Guy Lakeman
33
Simple model of the global economy, the global carbon cycle, and planetary energy balance. The planetary energy balance model is a two-box model, with shallow and deep ocean heat reservoirs. The carbon cycle model is a 4-box model, with the atmosphere, shallow ocean, deep ocean, and terrestrial c
Environment
Simple model of the global economy, the global carbon cycle, and planetary energy balance.

The planetary energy balance model is a two-box model, with shallow and deep ocean heat reservoirs. The carbon cycle model is a 4-box model, with the atmosphere, shallow ocean, deep ocean, and terrestrial carbon. 

The economic model is based on the Kaya identity, which decomposes CO2 emissions into population, GDP/capita, energy intensity of GDP, and carbon intensity of energy. It allows for temperature-related climate damages to both GDP and the growth rate of GDP.

This model was originally created by Bob Kopp - https://insightmaker.com/user/16029 (Rutgers University) in support of the SESYNC Climate Learning Project.

Steve Conrad (Simon Fraser University) modified the model to include emission/development/and carbon targets for the use by ENV 221.
REM 221 Simple Climate-Carbon-Economic Model with Targets
Steve Conrad
28
Interplay between wolves eating sheep and farmers killing wolves.
Farming Environment

Interplay between wolves eating sheep and farmers killing wolves.

Simple Sheep, Wolves and Deer
Davor Tomasic
Tomado de: Modeling forest succession in a northeast deciduous forest. Modificado para Bosque Subtropical
Environment Ecology Succession
Tomado de: Modeling forest succession in a northeast deciduous forest.
Modificado para Bosque Subtropical
Sucesión Forestal
Denny S. Fernandez del Viso
4
This stock and flow diagram is a working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.
Environment Lake Nutrient Cycling Management Leaching

This stock and flow diagram is a working draft of a conceptual model of a dune-lake system in the Northland region of New Zealand.

Stock and flow diagram of phosphorus in a shallow lake
Graeme Doole
12
This model shows how a persistent pollutant such as mercury or DDT can be bioamplified along a trophic chain to levels that result in reduction of top predator populations.
Environment Bioamplification Oceanography Pollution
This model shows how a persistent pollutant such as mercury or DDT can be bioamplified along a trophic chain to levels that result in reduction of top predator populations.
Clone of Clone of Biomaplification of mercury in a marine system
Morgan Stonge
Insight diagram
Assignment Environment
Koala Prediction
Paul
This model shows how a persistent pollutant such as mercury or DDT can be bioamplified along a trophic chain to levels that result in reduction of top predator populations.
Environment Bioamplification Oceanography Pollution
This model shows how a persistent pollutant such as mercury or DDT can be bioamplified along a trophic chain to levels that result in reduction of top predator populations.
Clone of Biomaplification of mercury in a marine system
Marc Eichen
Insight diagram
Environment Prey Ecology Predator
Clone of Predator-Prey Interactions (Wolf & Moose)
Josh Kruhm
Interplay between wolves eating sheep and farmers killing wolves who kill deer that eat crops that feed sheep.
Farming Environment

Interplay between wolves eating sheep and farmers killing wolves who kill deer that eat crops that feed sheep.

Clone of Complex Sheep, Wolves, Deer, Crops
Magnus Persson
HANDY Model of Societal Collapse from Ecological Economics  Paper   see also D Cunha's model at IM-15085
Environment Inequality Sustainability Sociology Economics
HANDY Model of Societal Collapse from Ecological Economics Paper 
see also D Cunha's model at IM-15085
Clone of Human and Nature Dynamics of Societal Inequality
Holger Arndt
Second Draft
Environment Unintended Consequences
Second Draft
Koala Population Dynamic Systems
Ty
Primitives for Watershed modeling project. Click Clone Insight at the top right to make a copy that you can edit. The converter in this file contains precipitation for Phoenix only.
Rainwater Water Environment
Primitives for Watershed modeling project. Click Clone Insight at the top right to make a copy that you can edit.

The converter in this file contains precipitation for Phoenix only.
Primitives for Rainwater Harvesting -Phoenix ENVS 270 F21
Rivka Fidel
106
Z212 from System Zoo 1 p142-148
Physics Health Care Environment

Z212 from System Zoo 1 p142-148

House Heating Dynamics
Geoff McDonnell
3
Interplay between wolves eating sheep and farmers killing wolves.
Farming Environment

Interplay between wolves eating sheep and farmers killing wolves.

Simple Sheep and Wolves
Davor Tomasic
Insight diagram
Tree Global Warming Environment
Deforestation
Aude Souvestre
Insight diagram
Environment Public Policies Fisheries Management
FISHERIES MANAGEMENT THROUGH PUBLIC POLICICES
Stefan
This model depicts a very simplified series of interactions between water quality inspectors and cannabis cultivators in northern California.
Environment Inspection Regulation
This model depicts a very simplified series of interactions between water quality inspectors and cannabis cultivators in northern California.
Water Inspector Model
Ben Christopher
4
In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards . Air Pollution is causing 4,000 premature deaths per year , including health costs over US$8 billion. The System Dynamics Causal Loop Diagram developed herein shows an initial study o
Heating Air Pollution Environment
In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards. Air Pollution is causing 4,000 premature deaths per year, including health costs over US$8 billion.

The System Dynamics Causal Loop Diagram developed herein shows an initial study of the dynamics among the variables that influences the accumulation of PM in the air, in particular the case of Temuco, in the South of Chile. In Temuco, 97% of the PM inventories comes from the combustion of low quality firewood, which in turns is being burned due to its low price and cultural habits/tradition.
Clone of Air Pollution Dynamics - Firewood Combustion
dounia
Ce modèle est une simulation classique du cycle de productivité dans l'océan, incluant les effets de la thermocline pour désactiver l'advection d'éléments nutritifs dissous et de détritus à la couche superficielle.   Ce modèle illustre un certain nombre de caractéristiques intéressantes notamment
Phytoplankton Ocean Environment Biogeochemistry Primary Production
Ce modèle est une simulation classique du cycle de productivité dans l'océan, incluant les effets de la thermocline pour désactiver l'advection d'éléments nutritifs dissous et de détritus à la couche superficielle.  

Ce modèle illustre un certain nombre de caractéristiques intéressantes notamment le lien de trois variables d'état dans un cycle fermé, l'utilisation du temps pour contrôler la durée de l'advection et la fonction modulus pour les données de température qui cyclent annuellement sur plusieurs années. 

Les variables d'état du modèle sont exprimées en unités d'azote (mg N m-3), et l'étalonnage est basé sur:

Baliño, B.M. 1996. Eutrophication of the North Sea, 1980-1990: An evaluation of anthropogenic nutrient inputs using a 2D phytoplankton production model. Dr. scient. thesis, University of Bergen.
 
Fransz, H.G. & Verhagen, J.H.G. 1985. Modelling Research on the Production Cycle of Phytoplankton in the Southern Bight of the Northn Sea in Relation to Riverborne Nutrient Loads. Netherlands Journal of Sea Research 19 (3/4): 241-250.

Traduction du modèle de Joao G Ferreira (https://insightmaker.com/insight/6838/NPD-model-Nutrients-Phytoplankton-Detritus)
Le modèle NPD (nutriments, phytoplancton, détritus) basé sur la productivité primaire de la Mer du Nord - CHANGEMENT TEMPERATURE 1 DEGRE
Alexia Parhas
Fooodwaste happens everywhere and in every part of the food cycle even if nobody wants it to happen.  We created a local solution  to reduce the waste. This solution is situated in Belgium (Kotrijk) where an exchange system (for services) already exists and it is called letsleie  http:/
Environment

Fooodwaste happens everywhere and in every part of the food cycle even if nobody wants it to happen. 

We created a local solution to reduce the waste. This solution is situated in Belgium (Kotrijk) where an exchange system (for services) already exists and it is called letsleie http://www.letsleie.be.  We did choose letstlei because their exchange system doesn’t work with money but with a fictive money system "vlasbloemen". In their system we want to integrate the exchange of food leftovers. After some years the system could become world wide. 

Our solution begins with an event in a neighbourhood or apartments. This event brings the neighbours together who don't know each anymore. It explains the existing system and the problems of the food waste. Every person had to take a leftover and chefs will create a delicious meal of it. The members will receive a food box who is biodegradable and contains a QR code that will simplify the food/ service exchange. 

 People will talk to each other after the event and more and more people will join without needing new publicity.

Foodwaste Reducing by exchanging
DESTREBECQ
Simple box-model of the global carbon cycle
Carbon Environment Sustainability
Simple box-model of the global carbon cycle
Clone of Global Carbon Cycle
Phil Resor
This model simulates the growth of carp in an aquaculture pond, both with respect to production and environmental effects. Both the anabolism and fasting catabolism functions contain elements of allometry, through the m and n exponents that reduce the ration per unit body weight as the animal grows
Sustainability Environment Aquaculture Finfish
This model simulates the growth of carp in an aquaculture pond, both with respect to production and environmental effects.

Both the anabolism and fasting catabolism functions contain elements of allometry, through the m and n exponents that reduce the ration per unit body weight as the animal grows bigger.

The 'S' term provides a growth adjustment with respect to the number of fish, so implicitly adds competition (for food, oxygen, space, etc).

 Carp are mainly cultivated in Asia and Europe, and contribute to the world food supply.

Aquaculture currently produces sixty million tonnes of fish and shellfish every year. In May 2013, aquaculture production overtook wild fisheries for human consumption.

This paradigm shift last occurred in the Neolithic period, ten thousand years ago, when agriculture displaced hunter-gatherers as a source of human food.

Aquaculture is here to stay, and wild fish capture (fishing) will never again exceed cultivation.

Recreational fishing will remain a human activity, just as hunting still is, after ten thousand years - but it won't be a major source of food from the seas.

The best way to preserve wild fish is not to fish them.
CARP - Carp AquacultuRe in Ponds
Joao G. Ferreira
6
In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards . Air Pollution is causing 4,000 premature deaths per year , including health costs over US$8 billion. The System Dynamics Causal Loop Diagram developed herein shows an initial study o
Environment Heating Air Pollution
In Chile, 60% of its population are exposed to levels of Particulate Matter (PM) above international standards. Air Pollution is causing 4,000 premature deaths per year, including health costs over US$8 billion.

The System Dynamics Causal Loop Diagram developed herein shows an initial study of the dynamics among the variables that influences the accumulation of PM in the air, in particular the case of Temuco, in the South of Chile. In Temuco, 97% of the PM inventories comes from the combustion of low quality firewood, which in turns is being burned due to its low price and cultural habits/tradition.
Clone of Air Pollution Dynamics - Firewood Combustion
med