1) Antalya, Turkey
2) Hangzhou, China
3) Buenos Aires, Argentina
4) Nagano, Japan
Explanation:
G20 (Group of 20) Ministerial Meeting on Energy Transitions and Global Environment for Sustainable Growth for the year 2019 was held at Karuizawa Prince Hotel (Karuizawa Town, Nagano), Japan on June 15-16, 2019.