According to estimates of the United Nations, more than 2.6 billion people in 110 countries are directly affected by progressive desertification. Deserts now cover more than a third of the entire surface of the earth, thus 65% of arable lands. More than three billion cattle, sheep and goats chomp their way through pastures faster than they can be regenerated. This program shows how desertification is changing the balance of the earth and affecting two continents in particular: Asia and Europe.
