There are signs that Grímsvötn, ‘a peculiar #volcano’ in #Iceland, is getting ready to erupt again as the Icelandic aviation color code is changed from green to yellow — dangerous as it‘s heat output is ‘extraordinarily high’ at 2000-4000MW #edutwitter https://t.co/b9OIzGzLU9
— RGS-IBG Schools (@RGS_IBGschools) October 8, 2020
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