For those interested in reading the paper that first discovered ocean darkening, co-authored by both PML's Prof Tim Smyth and Dr Thomas Davies of the University of Plymouth, it is open-access here: onlinelibrary.wiley.com/doi/10.1111/...
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The ocean is darkening, with less sunlight reaching deeper waters over the past 20 years. Analysing satellite data, we found that 21% of the global ocean has experienced reduced light penetration, wi...