Since 2006 he's been working on performances to bring consciousness about climate and environmental issues. Markus is known for his engagement for enviroment and peace.
2010 he travelled to Sapmi to discover the Sapmi-Culture and the art of Yoik. He became friend with the the singer Berit Alette Mienna & the fluteplayer Øistein Hansen wich had a great input on his song "Saami-Land". Since then he keeps on travelling to Scandinavia discovering further roots of the worlds musical heritage.
At present Markus plays with his band GreenTrees or SOLO
GreenTrees recorded their last CD with the irish producer, drummer and multi-instrumentalist WAYNE SHEEHY at the ocean studios in Kilcrohane, Ireland. The CD " Take this world in your hands" was released 2018, a further engaged album for a peaceful, sustainable way of living on this planet. https://markusrueeger.com