This book is a compilation of selected papers from the 1st Belt and Road Webinar Series on Geotechnics, Energy and Environment, March - May 2021. The book comprises selected research related to advances in geo-environmental engineering. Topics covered include rock mechanics, sustainable materials, frozen soils, geotechnical innovations in megacities. The research is related to the sustainable infrastructure development for countries in China's Belt and Road Initiative. The contents of the volume will prove useful to researchers and professionals working in geotechnical and geological engineering domains.