This model demonstrates positive feedback that decreases the surface albedo and increases the greenhouse effect and examines its impact on this planet's temperature.
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.
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.
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.
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.
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.
Capital Certainty Aims to model the World in order to eradicate externalities: 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.
Capital Certainty Adaptation of World3 Model: Classic World Simulation
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 Clone of Aquaworld Radiation Balance
The World Socio-Economics model is computer model to simulate the consequence of interactions between the earth and human systems based on the World3 model by the work of Club of Rome, The Limits to Growth[1].
The World3 model builds by system dynamics theory that is has an approach to understanding the nonlinear behaviour of complex systems over time using stocks, flows, feedback loops, table functions and time delays.
The Limits to Growth concludes that, without substantial changes in resource consumption, "the most probable result will be a rather sudden and uncontrollable decline in both population and industrial capacity".
Since the World3 model was originally created, it has had minor tweaks to get to the World3-91 model used in the book Beyond the Limits[2], later improved to get the World3-03 model used in the book Limits to Growth: the 30 year update[3].
References;
[1] Meadows, Donella H., Meadows, Dennis L., Randers, Jørgen., Behrens III, William W (1972). The Limits to Growth.
[2] Meadows, Donella H., Dennis L. Meadows, Randers, Jørgen., (1992). Beyond the limits: global collapse or a sustainable future.
[3] Meadows, Dennis., Randers, Jørgen., (2004). The limits to growth: the 30-year update.
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.
