The Smith's Snackfood Company was enlarged in 1930. During the depression, Smith travelled to Australia to expand the business. The company nearly went under during this time and had to be propped back up by a small number of visitors and investors. The company bounced back and expanded its brands, aided with the help of advancing technology. Smiths was later owned by biscuit company Nabisco, BSN and finally sold to American company PepsiCo in the 1990s. Subsequently, Pepsico withdrew the brand, in favour of popular British brand Walkers, which had been heavily marketed in a campaign using ex-footballer turned television presenter Gary Lineker. Many
PepsiCo efficient means of producing and distributing its products using less energy, while also placing a focus on emissions reduction. In a comparison of 2009 energy usage with recorded usage in 2006, the company's per-unit use of energy was reduced by 16 percent in its beverage plants and 7 percent in snack plants. In 2009, Tropicana (owned by PepsiCo) was the first brand in the U.S. to determine the carbon footprint of its orange juice product, as certified by the Carbon Trust, an outside auditor of carbon emissions. Also in 2009, PepsiCo began the test deployment of so-called "green vending machines",