Extra dimensions are of interest because string theory, a class of mathematical models based on quantum theory that seeks to describe reality in the most fundamental way, requires that there be at least six of them, maybe more.

ECONOMIST: Cosmology

The book provides practical methods for supporting improved participatory processes, including the application of theory and models to aid decision-making.

UNESCO: Social and Human Sciences

In theory, climate models should help tease out which of these indirect effects is playing the biggest role, and also say how much of the decline in ice cover can be assigned to natural variability and how much to feedback loops in which a little warming leads to a lot more.

ECONOMIST: Summer ice in the Arctic Ocean is vanishing rapidly