The purpose of this deer management model is to explore the capacity of wildlife management actions to help us adapt to the effects of climate change.

For testing only

The 3-machines energy transition model is a global system dynamics model based on energy balances,  and used to explore the energy frontiers for stabilizing the Earth's climate. The model comprises a hypothetical fossil engine, a solar engine including energy storage, and a carbon scrubber. These machines interact with Earth's carbon cycle and satisfy humanity’s energy demand. A detailed description can be accessed here: https://osf.io/fcwt8/

Various factors affecting South East Queensland's koala population. 

A very simple thermodynamic model of a planet, based on first order approximations of its (black bodies) radiation balance, and includes two radiation modulating effects i.e. albedo and green house as well as two heat stores (ocean and atmosphere). It is a lumped model which does not consider spatial variations and resulting mass transports - thus no heat exchange between e.g. equatorial and polar regions. As a consequence all values are surface specific i.e. per square meter. The radiation balance is in  W/m² and the heat reservoirs are in J/m² i.e. water and air columns with a cross section of 1 m².

A model of the potential impact on the elderly population (75+ years) from heat stress, which is increased by climate change in the UK.

Various factors affecting South East Queensland's koala population. 

simulation oc carbon dioxide in the atmosphere

A very simple thermodynamic model of a planet, which includes first order approximations of its radiation balance (black bodies), including two radiation modulating effects i.e. albedo and green house and two heat storages (ocean and atmosphere). It is a lumped model which does not consider spatial variations and resulting mass transports - thus no heat exchange between e.g. equatorial and polar regions...
As a consequence all values are surface specific i.e. per square meter. E.g. the energy balance is the  balance in  W/m² and the heat reservoirs are water and air columns with a cross section of 1 m²...

A very simple thermodynamic model of a planet, based on first order approximations of its (black body) radiation balance.

A very simple thermodynamic model of a planet, based on first order approximations of its (black body) radiation balance.

If all Americans believed that extreme weather events, droughts and wildfires are primarily caused by climate change they would soon react and demand immediate action from their political leaders. It is likely that this will happen fairly soon because of the dynamic hidden in the phrase 'Climate Change'. Wolfgang von Goethe the famous German poet and scientist said  ''we only see what we know". Cognitive psychology largely agrees and says that we only understand what we see - and give importance to it -  if we have a schema  (mental model) for what we are looking at.  As the terms 'Climate Change' become more widely used people will try to understand what they mean and start to construct schemas. As a result of this process they will soon  see  extreme weather events and wild fire in a different light as the occur again and again - after all, climate scientists told us that  their numbers and severity would  increase as a result of climate change. This simple CLD tries to illustrate this dynamic. It suggests that if you want to speed up this process, a good strategy would be to point out at every occasion possible that an increase of extreme weather events and droughts is precisely what climate scientists predicted!

DRAFT conceptual model of climate change connections in Yamuna river project.