In 1831 a powerful volcanic eruption released so many sulphurous gases into the atmosphere, it blocked the light from the sun and made it look blue. The eruption cooled the planet by around one ...

Some of those volcanoes peak above the surface ... The authors stress that this process is slow, taking place over hundreds of years. But that means the theorized feedback could continue even ...

More than 100 volcanoes lurk beneath the surface in Antarctica ... The authors stress that this process is slow, taking place over hundreds of years. But that means the theorized feedback could ...