Researchers have offered various explanations for the recurring outbreaks, including temperature shifts and the changing ecology of local water bodies, but they haven't had enough evidence to nail down the cause. (sciencemag.org)
Various explanations of redemption or satisfaction have been developed to clarify what this reconciliation is and how it was accomplished. (religion-online.org)
Some social commentators have labelled today's generation of young adults as having an exaggerated sense of entitlement, with various explanations for the trends. (slaw.ca)