If adopted on a grand scale, the assessment argues, such techniques could double crop yields.

ECONOMIST: Financing water projects

This irrigation-efficient system, Khodpe was told, could double crop yields and save up to 60% of the water that flood irrigation methods consume.

FORBES: Magazine Article

The sweet potato is sub-Saharan Africa's first genetically modified crop, and its yields so far are double that of the regular plant.

FORBES: Millions Served

Nine million tons would double the previous record of 4.3 million tons set 15 years ago after a disastrous crop.

FORBES: Copper, Food And The Strength Of The Global Economy