Scientists Find 7,000 Methane 'Bubbles' Trapped Underground in Siberia

This has news footage I’ve not seen before including inteviews with Prof. Bogoyavlensky

Mysterious Giant Craters in Siberia Could Mean Trouble For The Whole World

• What's causing Siberia's mystery craters.
• Siberian giant sinkholes- Russian expedition ventures to solve the mystery.
• 'Hellmouth Crater' is Opening Portal to 200,000-Year-Old World.
• Mysterious Craters Blowing Out Of Russia Could Mean Trouble For The Whole Planet.
• Scientists Find 7,000 Methane 'Bubbles' Trapped Underground in Siberia.
• Siberian plot- 20 mini-craters near giant Yamal gas hole.