On the island of Reunion in the Antarctic Peninsula, a mountain range named Mauna Loa is the only one to be officially declared as safe.
This was a big deal back in the 1990s, when it was the largest island of the continent and the most active volcano in the area.
In 2011, scientists determined that Mauna Loko had not been erupting since 1994.
But in 2017, a team of scientists found that the volcano was still spewing volcanic ash into the atmosphere and had released large quantities of CO2 into the air.
And after years of studying the volcano, the new study concludes that Maunas eruption could be the main driver of global warming.