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...Open University course S396 Ecosystems... Ecosystems: living communities A short introduction to this album What is an ecosystem? How the definition of an ecosystem as "a living system of energy transfer" arose The energy cycle Understanding the role of the sun, carbon, and energy interactions between organisms in ecosystems Humans enter the equation How human activity...

...model reflects reality, by comparing the model's predictions against real-world data. This material forms part of The Open University course S396 Ecosystems... Ecosystems: modelling the Earth A short introduction to this album. Using a model How models can be used to predict the Earth's climate patterns. The acid test The limitations of models; how to measure model error....

...The Open University's Dr Richard Holliman reflects on the findings of a research project called 'Invisible Witnesses' to explore these questions. In so doing he considers some of the implications of the 1950s stereotype for how scientists are perceived in the public sphere... Imagining Scientists Looking at the 'mad scientist' stereotype and comparing it with reality....