A golden crispy flake and chips is a classic takeaway meal. But is it a sustainable choice? Travis/Flickr

Flake is sustainable gummy shark, except when it’s not

Flake is great with steaming hot chips. But what fish species is it, and is it sustainable? In Australia, it’s mainly gummy shark, which is a sustainable choice. But beware poorly labelled imitations.
Antarctica’s delicate marine ecosystems are under threat from climate change and ocean acidification. wikimedia/Steve Clabuesch

Warning bells: what Antarctica can teach us about ocean acidification

When it comes to climate change, temperature is only part of the story. Climate gases released by human activity are dissolving into the oceans, and the increased levels of CO₂ are making the waters more…

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