This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Climate Greenhouse Effect
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Clone of Aquaworld Radiation Balance
Sahil Mann
3
Clone of:  'Sucesion Forestal' (by Denny S. Fernandez del Viso) for subtropical forest, which in turn is a modification of 'Modeling forest succession in a northeast deciduous forest' (by Owen Stuart). Translated to English (by Lisa Belyea)
Environment Ecology Succession
Clone of: 
'Sucesion Forestal' (by Denny S. Fernandez del Viso) for subtropical forest, which in turn is a modification of 'Modeling forest succession in a northeast deciduous forest' (by Owen Stuart).
Translated to English (by Lisa Belyea)
Clone of Subtropical forest succession
Miriam Rodrigues Da Costa
last month
THE 2020 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 R
Yield Transport Silicene Graphene Resource Solar Nuclear Energy Food Agriculture Cyclone Tornado Typhoon Hurricane Loss Drought Flood Animals Plants Fish Sea Ocean 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 2020 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 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.

WORLD2020 to PLANET2020
Guy Lakeman
11
An implementation of Dennis Meadows' PhD thesis on Dynamics of Commodity Cycles:  http://dspace.mit.edu/handle/1721.1/14131 This started as an implementation of the stock and flow structure for Figure 11-20 (p448) in John Sterman's Business Dynamics.  I tried to complete it myself by filling
DYNAMO
An implementation of Dennis Meadows' PhD thesis on Dynamics of Commodity Cycles: http://dspace.mit.edu/handle/1721.1/14131

This started as an implementation of the stock and flow structure for Figure 11-20 (p448) in John Sterman's Business Dynamics. I tried to complete it myself by filling in the blanks, but I couldn't completely recreate the expected behaviour, so I tracked down the original model and re-implemented it from DYNAMO into InsightMaker.
Hog Supply
Ash Moran
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
31
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors.   Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing th
Population Growth Environment Demographics

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

 

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.

My World3
John Vorhauer
17
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amou
Population Growth Environment Demographics

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

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.

(4, Assignment) Copy of "The World3 Model: A Detailed World Forecaster"
Jannik
Insight diagram
Struktur
Jacob Rutgersson
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Climate Greenhouse Effect
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Clone of Aquaworld Radiation Balance
Karyssa Arnett
This is a model which attempts to replicate a simple reinforcing loop described by Dennis Sherwood on page 75-87 of his book 'Seeing the forest for the trees - a manager's guide to applying systems thinking. This is not a realistic model but I just wanted to reproduce it as practice of implementing
Reinforcing Loop Dennis Sherwood Business Seeing The Forest For The Trees A Managers Guide Applying Systems Thinking.www.stantonattree.com
This is a model which attempts to replicate a simple reinforcing loop described by Dennis Sherwood on page 75-87 of his book 'Seeing the forest for the trees - a manager's guide to applying systems thinking.

This is not a realistic model but I just wanted to reproduce it as practice of implementing causal loop models.

www.stantonattree.com
Clone of Seeing the forest for the trees example
Bechara Assouad
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amou
Environment Population Growth Demographics

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

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 more environmentally focused policy.

Clone of The World3 Model: Classic World Simulation
Kyra Evers
7 months ago
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Greenhouse Effect Climate
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Clone of Aquaworld Radiation Balance
Aurlin Dhillon
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amoun
Demographics Environment Population Growth

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

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 more environmentally focused policy.

"The World3 model is a system dynamics model for computer simulation of interactions between population, industrial growth, food production and limits in the ecosystems of the earth.

It was originally produced and used by a Club of Rome study that produced the model and the book The Limits to Growth (1972).

 The creators of the model were Dennis Meadows, project manager, and a team of 16 researchers

The main systems are: the food system, dealing with agriculture and food production, the industrial system, the population system,  the non-renewable resources system,  the pollution system. 

Scenario is below

Scenario2: Initial Natural Resource 1T -> 2T

Scenario3: Scenario2 + Persistent Pollution Tech Change Multiplier (-1,0)->(-1, -0.04)

Scenario4: Scenario3 + Yield Tech Change Multiplier (-1,0) -> (-1,0.04)

Scenario5: Scenario4 + Land life time 2100 -> 2002

Scenario6: Scenario5 + Resource Technology Change Multiplier (-1, 0) -> (-1, -0.04)

Scenario7: Scenario2 + Year of continued fertility change 2100 -> 2002, Time to zero population growth 2100 -> 2002

Scenario8: Scenario7 + Desired annual industrial per capita output 400 -> 350, Year of Industrial Equilibrium 2100 -> 2002

Scenario9: Scenario8 + scenario6

Scenario10: Scenario9 + Policy adoption year 2002 -> 1982 

Editor Original Snenario: Scenario4 + Land life time 2100 -> 2030 + Resource Technology Change Multiplier (-1, 0) -> (-1, -0.04) + Year of continued fertility change 2100 -> 2030, Time to zero population growth 2100 -> 2030 + Desired annual industrial per capita output 400 -> 350, Year of Industrial Equilibrium 2100 -> 2030 + Policy adoption year 2002 -> 2030.

This description is from https://en.wikipedia.org/wiki/World3 

Model adapted from the implementation presented in Cellier, F.E. (2008), https://people.inf.ethz.ch/fcellier/Pubs/World/modelica_08_world3.pdf"

World3 in Modelica: Creating System Dynamics Models in the Modelica Framework, Proc. 6th International Modelica Conference, Bielefeld, Germany, Vol.2, pp. 393-400. 

Clone of The World3-03 Model with Scenario Description
Hans Kratz
5 months ago
THE 2018 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 R
Death Strategy Engineering Technology Science Mortality Energy Failure Climate Economics Weather Politics Fertility Population Population Growth Demographics Environment Health Services Resources Land Jobs Labor Urban Industrial Rural Lifetime Pollution Regeneration Yield Ocean Sea Fish Plants Animals Flood Drought Loss Hurricane Typhoon Tornado Cyclone Agriculture Transport Silicene Graphene Resource Solar Food Nuclear

THE 2018 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 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.

2018 OVERPOPULATION LEADS TO POLLUTION based on Weather & Climate Extreme Loss of Arable Land and Ocean Fertility by Guy Lakeman - The World3+ Model: Forecaster
Guy Lakeman
17
Matt's revised version of the Aquaworld solar radiation insight.
Climate Greenhouse Effect
Matt's revised version of the Aquaworld solar radiation insight.
Matt
Matthew Masoudi
Insight diagram
sem prace
Minh Truong Nguyen
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amou
Environment Demographics Population Growth

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

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.

Updated World3 Model: A Detailed World Forecaster
Kyle Wendling
5
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Climate Greenhouse Effect
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Clone of Aquaworld Revised - Surface Albedo, GHG and Temperature
James Linzel
Model vyvoje spolecnosti GPUminers
Model vyvoje spolecnosti GPUminers
Svoboda_Clone of Mining
Stanislava Mildeova
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Greenhouse Effect Climate
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Aquaworld Radiation Balance Model W/ Surface Albedo and the Greenhouse Effect Dependent on Surface Temperature!
Sean Bains
Insight diagram
revamp
Saya Knox
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Climate Greenhouse Effect
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Clone of Clone of Aquaworld Radiation Balance
Aurlin Dhillon
The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amo
Population Growth Environment Demographics

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


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.

Clone of The World3 Model: A Detailed World Forecaster
TonyVan
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
Greenhouse Effect Climate
This simple radiation balance model shows the greenhouse effect that an atmosphere can have in warming a planet.  By trapping some of the radiation emitted by the planet the atmosphere can cause the surface to become warmer than it otherwise would be.
project stage 1
Bill shmygol