The Popocatépetl volcano, one of the worlds most dangerous, has sent a mile high toxic plume of ash into the air, sparking a mass-evacuation of people living within 10 miles of it. The volcano is just 35 miles from Mexico City, the world’s fourth most populated city and home to 20 million residents. Authorities say the risk of the volcano erupting is severe, and the lives of millions is potentially at stake. The Celestial Convergence reports: The volcano alert follows fears earlier this month that a second large volcano in Mexico – the 3,850 metres-high Colima in western Mexico – could be about to face a large scale eruption for the first time in 100 years. Popocatépetl last saw a major eruption in 2000, but early warnings saw 41,000 people evacuated in advance, averting a major disaster. In 2005 it had a minor eruption, but activity has been increasing since 2012, with this week’s some of the most notable, prompting officials to issue the warning. If the volcano experienced a massive eruption, an estimated nine million people would be in the blast zone and the impact on the atmosphere could be catastrophic. Popocatépetl has erupted more than 20 times since 1519, [...]