Scientists are trying to assess the damage from the Nord Stream pipeline leaks, which may be the biggest single leak of greenhouse gas on record.
Subscribe to our channel http://bit.ly/AJSubscribe
Follow us on Twitter https://twitter.com/AJEnglish
Find us on Facebook https://www.facebook.com/aljazeera
Check our website: http://www.aljazeera.com/
Check out our Instagram page: https://www.instagram.com/aljazeeraenglish/