Fishing boats that trawl the ocean floor, release as much carbon dioxide as the entire aviation industry, according to a groundbreaking study.
Bottom trawling, a widespread practice in which heavy nets are dragged along the seabed, pumps out 1 gigaton of carbon every year, says the study, written by 26 marine biologists, climate experts and economists.
Professor Mark Costello is an internationally acclaimed marine biologist who was until recently based at University of Auckland. Karyn speaks to him tonight at Nord University in Norway.
Fishing nets for trawling. Photo: photo 123RF
