An abandoned forest road that has become impassable due to the washout of the culvert fill. The beaver dam has also contributed to road erosion.
(Forest Hydrology Laboratory of Université Laval)
By mismanaging its forestry road system, Québec and the forestry companies operating in public forests have made significant savings, to the detriment of protecting aquatic environments.
Zenza Flarini/Shutterstock
We know targeted political adverts contribute to polarisation, but commerical ones leave us fragmented too.
Schematic diagram of an aggregate made up of linked users, with the mathematical equation that describes this online pro-ISIS ecology.
Neil Johnson
A new mathematical model of ISIS supporters’ online behavior provides insights into how cyberactivity relates to real-world attacks.