Mexico's President Enrique Pena Nieto (Center L) speaks as he meets with Chinese President Xi Jinping (not pictured) at the West Lake State Guest House in Hangzhou on September 4, 2016. G20 leaders confront a sluggish global economy and the winds of populism as they open annual talks, but the long war in Syria and the South China Sea territorial dispute hang over the summit in the scenic city of Hangzhou. / AFP PHOTO / POOL / WANG ZHAOWANG ZHAO/AFP/Getty Images

Australia's Prime Minister Malcolm Turnbull (3rd L) meets with Chinese President Xi Jinping (R) at the West Lake State Guest House in Hangzhou on September 4, 2016. G20 leaders confront a sluggish global economy and the winds of populism as they open annual talks, but the long war in Syria and the South China Sea territorial dispute hang over the summit in the scenic city of Hangzhou. / AFP PHOTO / POOL / WANG ZHAOWANG ZHAO/AFP/Getty Images

Australia's rime Minister Malcolm Turnbull (2nd L) meets with Chinese President Xi Jinping (not pictured) at the West Lake State Guest House in Hangzhou on September 4, 2016. G20 leaders confront a sluggish global economy and the winds of populism as they open annual talks, but the long war in Syria and the South China Sea territorial dispute hang over the summit in the scenic city of Hangzhou. / AFP PHOTO / POOL / WANG ZHAOWANG ZHAO/AFP/Getty Images

Australia's rime Minister Malcolm Turnbull (L) meets with Chinese President Xi Jinping (R) at the West Lake State Guest House in Hangzhou on September 4, 2016. G20 leaders confront a sluggish global economy and the winds of populism as they open annual talks, but the long war in Syria and the South China Sea territorial dispute hang over the summit in the scenic city of Hangzhou. / AFP PHOTO / POOL / WANG ZHAOWANG ZHAO/AFP/Getty Images

Australia's Prime Minister Malcolm Turnbull (L) shakes hands with Chinese President Xi Jinping (R) at the West Lake State Guest House in Hangzhou on September 4, 2016. G20 leaders confront a sluggish global economy and the winds of populism as they open annual talks, but the long war in Syria and the South China Sea territorial dispute hang over the summit in the scenic city of Hangzhou. / AFP PHOTO / POOL / WANG ZHAOWANG ZHAO/AFP/Getty Images

Bangladeshi activists who fought in the 1971 war, celebrate after Mir Quasem Ali, leader of the Jamaat-e-Islami party, was executed in Kashimpur Central Jail on the outskirts of Dhaka on September 3, 2016. Bangladesh hanged a wealthy tycoon and top financial backer of its largest Islamist party late Saturday for war crimes, dealing a massive blow to the group's ambitions in the Muslim-majority nation. Mir Quasem Ali, a key leader of the Jamaat-e-Islami party, was executed after being convicted by a controversial war crimes tribunal for offences committed during the 1971 independence conflict with Pakistan. / AFP PHOTO / REHMAN ASADREHMAN ASAD/AFP/Getty Images

An iguana basks over a rock at Bahia Ballena Beach in Puntarenas, about 230 km southwest of San Jose, on September 2, 2016 during the 8th Annual Whale and Dolphin Festival. The whale watching season in Costa Rica runs from July until October but the peak month to see their migration is September and since the creation of the Festival, economy in the area is thriving. / AFP PHOTO / Ezequiel BECERRAEZEQUIEL BECERRA/AFP/Getty Images

An iguana basks over a rock at Bahia Ballena Beach in Puntarenas, about 230 km southwest of San Jose, on September 2, 2016 during the 8th Annual Whale and Dolphin Festival. The whale watching season in Costa Rica runs from July until October but the peak month to see their migration is September and since the creation of the Festival, economy in the area is thriving. / AFP PHOTO / Ezequiel BECERRAEZEQUIEL BECERRA/AFP/Getty Images