On the Kiltwalk last weekend I walked the tram-route threatened Roseburn path. It made me ask, how do we value a space like this?

Over the past 60 years, scientists have largely succeeded in building a computer model of Earth to see what the future holds.

Key points The health implications of exposures to the Alberta oil sands are underresearched, despite more than a decade of calls from Indigenous communities and researchers for further investigation.