Darin Graham - Reporter, The Climate Question Eating fish could be worse for the climate than previously thought, according to a recent scientific study . Previous research indicated that seafood has a smaller carbon footprint than other animal proteins, because fishing doesn't require farmland or the care of livestock. But a new study claims that catching fish using heavy nets that drag across the seabed - known as bottom trawling - emits about the same amount of carbon dioxide (CO2) globally as the aviation industry. Seabed sediments that act as huge carbon sinks are churned up during this kind of trawling - and this results in CO2 being released. "The ocean is full of little creatures that we call the plankton, microscopic algae and microscopic shrimp and so forth," says Dr Sala, explorer-in-residence at National Geographic and leader of the study published in Nature. Speaking to the BBC World Service's, The Climate Question , he says "most of these creatu
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