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.

Politics Adaptive Management and Transition Management

A simple generic rich picture WIP view of interactions among social structures and agents and Boonstra's 2016 conceptualizing power article from Ecology and Society 

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

Contraflow bus lanes seem to produce a never ending succession of accidents involving pedestrians. An understandable reaction is that pedestrians are careless and that more visible indicators of the potential danger is an appropriate measure. This leads to the 'Symptomatic Solution' - but unfortunately accidents are not usually stopped by symptomatic solutions. Another but potentially far more costly and time-consuming approach is available: investigating a fundamental solution. Recent findings in cognitive science have shown that often repeated actions (like looking to the right when crossing the street) are phisically represented in our brains - see George Lakoff and Mark Johnson's book Philosophy in the Flesh. It seems that looking in the wrong directon is a default setting in our brain that is almost impossible to correct. The fundamental solution must deal with the implication of this and any other reasons that contribute to the accidents. In the town where I live, and surely in many other cities, contraflow bus lanes are still in operation - here, I'm sure, Systems Thinking could help and inform public policy.

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

On the occasion of th G20-meeting in Toronto, the German Economics minister Herr Schaüble said that without restoring confidence it would not be possible to get consumer spending and business investment going. Similar remarks were made by David Cameron and Señor Zapatero of Spain. All maintain that confidence is a pre-requisite to get growth going and that, therefore, it was imperative to reduce fiscal deficits. Reducing the fiscal deficit will restore confidence at first. However, reducing the deficit very quickly will introduce a dynamic that may cause the economy to decline - and perhaps depress  consumers demand even further.  It will actually destroy confidence: few businesses are inclined to invest in a shrinking economy. Cutting the deficit too rapidly or too steeply can lead to a confidence trap.

NOTE: A big experiment is now taking place in the UK - the government has cut public spending severely! Will this lead to hardship and, perhaps, social unrest?