This is a problem because the warming heats up the frozen ground around the Arctic Ocean, where there is a massive amount of frozen carbon which, when it thaws, is turned into methane by microbes.
To je problem jer zagrijavanje grije zamrznutu zemlju oko arktičkog oceana a u njoj se nalaze velike količine zamrznutog ugljika koji se, kada se otapa, pretvara u metan od strane mikroba.