Philippines-based International Rice Research Institute (IRRI) Director Robert Zeigler asked for visiting Indian President Abdul Kalam's support to start collaboration with Indian scientists. He wanted Indian help to develop a rice variety that can withstand climatic changes due to green house gas (GHG). The IRRI is also trying to popularize its "drummers" that it invented in 1980; a contraption that will reduce labor costs, save time for re-plantation, and increase production. Experiments in West Bengal saw a 300-350% profit over the USD 20 initial cost. Farmers in Philippines have seen a higher profit rate due to economies of scale. Vietnam has improved this invention by using plastic instead of iron so the weight, initial cost, and making the device more portable. With falling rice prices, farmers can still maintain margins through technology innovations such as drummers.