Climate change has already made tropical oceans too hot for some marine species to survive. As they flee towards the poles, the implications for ecosystems and human livelihoods will be profound.
Species can evolve to tolerate higher temperatures – but there's a ceiling beyond which adaptation isn't possible.
Marine wildlife rarely remain in one habitat. Most species rely on a healthy network of ecosystems to raise their young and catch their food.
From a scientific perspective, the results are fascinating and world-first. From a personal perspective, what I saw will stay with me for a long time.
Without understanding which fish species and habitats local fishers rely on, export bans can do more harm than good.
Don't blame climate change for the 39,000 forest fires now incinerating huge tracts of the Brazilian Amazon. This environmental catastrophe is human-made and highly political.
The 'Nemo effect' wasn't real, and new research also found no evidence Dory led to increased imports of wild blue tang fish.