Combat Desertification and Drought

Desertification is the degradation of land in arid, semi-arid and dry sub-humid areas. It is caused primarily by human activities and climatic variations. Desertification does not refer to the expansion of existing deserts. It occurs because dryland ecosystems, which cover over one third of the world‘s land area, are extremely vulnerable to overexploitation and inappropriate land use. Poverty, political instability, deforestation, overgrazing and bad irrigation practices can all undermine the productivity of the land.

Over 250 million people are directly affected by desertification, and about one billion people in over one hundred countries are at risk. These people include many of the world‘s poorest, most marginalized and politically weak citizens

http://www.un.org/en/events/desertificationday/

You can celebrate this day to combat desertification by donating trees