Using crowd simulation to encourage social distancing

As Europe faces a resurgence of coronavirus, having loosened strict lockdowns, one of the most important policy questions is how people can safely social distance in crowded places. Our ability to accommodate maximum safety ...

Forest fertilization with paper mill residues

Research at Karlstad University shows that sludge and ashes as paper mill residues can be used as effective fertilizer. This involves biochar, that is, carbon from organic material returned to the forest and thus closing ...

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