Gow wants to solve the Peruvian trouble by______.

For some of Peruvians who live near the Andes, life depends on the snow that’s usually on top of mountains. There is just one problem these days, no snow.
    Gow is the founder of Peru Glaciers, the organizations’ goal is to bring the ice back to the Mountains.(6)Gow’s idea is very simple: If dark mountains absorb more heat from the sun, white mountain will have the opposite effect. The solution is to make them white.
    A crew of five goes around the mountain, splashing a mixture that turns rock white. The mixture is not paint but a combination of water, sand and lime. And it seems to be working. So far the crew has covered an area roughly 500,000 square meters, almost the size of 3 football fields. Still too small to Gow’s goal in the long term.(7)His goal is to cover 3 billion square meters which would be much more than 500,000 football fields. For that, he’d need about 1.5 billion dollars fulfilled over 5 years.