Definitely a good move.

The Korean government plans to plant trees in Mongolia starting from next year to prevent the yellow dust phenomenon and desertification of the region. Yellow dust, also known as “Asian dust” or “yellow sand,” originates in Central Asia’s Gobi Desert. It is carried to South Korea every spring. The Korea Forest Service said Tuesday that the “South Korea-Mongolia Greenbelt Project,” to be carried out from 2007 to 2016, will resolve the problem of yellow sand at its source.

I wandered around Mongolia a few years ago and the Southern half of the country could definitely do with having a lot of extra foliage to stop the spread of the Gobi Desert.