SPECIAL REPORT-Can the Saudis' oil money help him save the planet?

the world's largest exporter of crude oil, which has played a significant role in global warming. But it's also a country that is particularly vulnerable to the effects of climate change.(File pic shows Saudi's Aramco oil production)

RIYADH, Saudi Arabia: Spanish biologist Carlos Duarte had been at a Saudi royal palace until three o'clock in the morning, waiting for the country's most powerful man.

Finally in his hotel room, Duarte awoke hours later and noticed an alert on his smartphone screen. It was the palace: He and the other scientists and officials at the meeting on sustainable development should return immediately. Crown Prince Mohammed bin Salman was ready for them.