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But RBC said Amazon still has a “large competitive advantage with its 20 years of experience in building its delivery infrastructure — 175 fulfillment centers (FCs) globally, 40 sortation centers (SC), 100 delivery stations, and 20 air gateways — as it is now a Third Party Logistics provider itself, making it increasingly difficult for just about any retailer to replicate.”

But rescuers now have to figure out how to get them out, through several kilometres of dangerously flooded tunnels, or even to attempt to bring them out for now.

But Liu said further advancements are needed, as perception technology for self-driving cars has not matured enough to be effective in complex driving environments.

But experts discovered and pumped groundwater from beneath the parched earth to satiate greenhouses and orchards producing crops such as melons, sunflower seeds and wolfberries.

But Sandrine Urujeni, the board's deputy chief executive officer, said that fresh efforts are in place to bring more companies on board because there are many certified coffee roasters in the country.